Fits 2005-2011 Toyota Tacoma (Base, Pre Runner, and X-Runner).

The Mishimoto MMTC-TAC-05 Transmission Cooler Kit is engineered to protect your Toyota Tacoma’s transmission from excessive heat, which can lead to fluid breakdown and premature component failure. Whether you are towing, off-roading, or driving in high-ambient temperatures, this kit provides a significant increase in cooling capacity over the factory unit.

This cooler utilizes a tube-and-fin construction with densely packed internal fins to maximize heat dissipation. By increasing the core volume by 91% and the external fin area by 225% compared to the stock cooler, this kit ensures your ATF stays within safe operating temperatures. The plug-and-play design includes all necessary hardware for a straightforward installation.

• Direct fit for 2005-2011 Toyota Tacoma
• 91% increase in core volume over the stock cooler for increased cooling capacity
• 225% increase in external fin area vastly improves heat transfer
• Efficient tube-and-fin construction with densely-packed internal fins
• Complete plug-and-play kit includes all hardware required for installation
• Mishimoto Lifetime Warranty
• Manufacturer Part Number: MMTC-TAC-05

Fits select 2019-2025 Chevrolet Silverado 1500 and GMC Sierra 1500 models, including LD, LTD, and Limited editions.

Excessive heat is the primary cause of transmission failure, especially during heavy towing, fleet work, or spirited driving. The Mishimoto MMTC-T1-19 performance transmission cooler is engineered to combat high fluid temperatures in your 2019-2025 GM truck. This direct-fit upgrade utilizes a high-efficiency tube-and-fin core that is significantly larger than the factory unit, providing a massive 266% increase in core volume and 322% more fin surface area for improved heat dissipation.

Installation is straightforward with included direct-fit brackets and custom-tailored hoses. The kit features CNC-machined -6ORB adapters that integrate seamlessly with your stock transmission cooler lines using factory-style quick disconnects for a leak-free seal. Whether you are hauling heavy loads or daily driving, this cooler ensures your transmission operates within safe temperature parameters for long-term reliability.

• 266% increase in core volume over the stock transmission cooler
• 322% increase in fin surface area for superior heat dissipation
• Durable tube-and-fin core design for maximum efficiency
• CNC-machined -6ORB adapters for secure fluid line connection
• Direct-fit brackets and hoses for a bolt-on installation
• Includes factory quick disconnects for leak-free cooling
• Backed by the Mishimoto Lifetime Warranty
• Manufacturer Part Number: MMTC-T1-19

Protect your ZF 8HP transmission from performance-robbing heat with the Mishimoto Automatic Transmission Cooler, engineered for select 2019-2025 BMW M340i, Z4, and Toyota GR Supra (3.0L) models. While the factory liquid-to-air cooler provides a baseline for street use, aggressive track days and high-torque B58 builds can quickly push fluid temperatures beyond safe limits. This direct-fit upgrade provides the thermal margin needed to maintain consistent shift quality and transmission longevity.

Our engineering team maximized the available cooling area by expanding the core volume by 162% and increasing the external fin surface area by a massive 412% compared to the stock unit. This cooler utilizes a lightweight aluminum tube-and-fin core equipped with internal cooling fins to extract maximum heat while maintaining proper fluid pressures. Finished in a sleek silver powder coat, this unit installs in the factory location and includes the Mishimoto Lifetime Warranty.

• Direct fit for 2019-2025 BMW M340i, Z4, and Toyota GR Supra (3.0L)
• 162% increase in core volume over the stock transmission cooler
• 412% increase in external fin surface area for superior heat dissipation
• Lightweight aluminum tube-and-fin construction with internal cooling fins
• Durable silver powder-coated finish
• Manufacturer Part Number: MMTC-SUP-20
• Backed by the Mishimoto Lifetime Warranty

Managing transmission fluid temperatures is critical for protecting seals, clutches, and bearings from heat-induced failure. The Mishimoto MMTC-SP-13SL 13-Row Stacked Plate Transmission Cooler provides a high-efficiency universal cooling solution for vehicles operating in hot climates, towing heavy loads, or facing extreme driving conditions.

This universal kit features a robust stacked-plate heat exchanger with a 40,000 GVW rating, designed for maximum surface area and minimal pressure drop. The core is finished in a durable silver powder coat for superior corrosion resistance. To ensure a leak-free installation, the kit includes specific -in-16 to 3/8-in hose barb adapter fittings with integrated O-rings and 50 inches of spiral-reinforced SAE J1532 hose. An included abrasion-resistant protection sleeve prevents damage when routing lines through tight passageways or near sharp edges.

• High-efficiency 13-row stacked-plate core for optimal heat dissipation
• 40,000 GVW rating suitable for heavy-duty and towing applications
• Silver powder-coated finish for long-lasting corrosion resistance
• Includes 50-inches of SAE J1532 transmission fluid hose with spiral polyester reinforcement
• Universal mounting kit with 4 brackets, stainless-steel worm-gear clamps, and 3/8-in hose barb unions
• Manufacturer Part Number: MMTC-SP-13SL
• Mishimoto Lifetime Warranty

Protect your drivetrain and extend component longevity with the Mishimoto 13-row stacked-plate universal transmission cooler. Excessive heat is the primary cause of transmission failure, leading to degraded lubrication and damage to seals, clutches, and bearings. This highly efficient heat exchanger is designed to manage fluid temperatures in vehicles subjected to heavy towing, hot climates, or extreme driving conditions.

The core utilizes a stacked-plate design for maximum surface area and heat dissipation while maintaining minimal pressure drop. With a 40,000 GVW (Gross Vehicle Weight) rating, this cooler is engineered for heavy-duty performance. The unit is finished in a durable, corrosion-resistant black powder coat for long-term protection against the elements. This comprehensive kit (MMTC-SP-13BK) includes 50 inches of SAE J1532 spiral polyester reinforced hose, specialized adapters, and universal mounting hardware to facilitate a secure installation on a wide range of applications.

• 13-row stacked-plate core provides superior cooling efficiency and pressure tolerance
• 40,000 GVW rating for heavy-duty towing and high-stress applications
• Durable black powder-coated finish resists corrosion
• Includes 50 inches of SAE J1532 transmission cooler hose and abrasion-resistant protection sleeve
• Fittings include -10AN to 3/8-in hose barb adapters with integrated O-rings for leak-free operation
• Complete kit with 4 universal mounting brackets, stainless-steel worm-gear clamps, and hardware
• Manufacturer Part Number: MMTC-SP-13BK
• Protected by the Mishimoto Lifetime Warranty

Fits 2017-2020 Ford F-150 (3.5L) models equipped with the 10R80 transmission.

The factory thermal bypass valve in the 10R80 transmission is a common failure point that can restrict or completely block fluid flow to the external cooler. When this valve fails, it leads to rapid overheating, transmission fluid degradation, and potential internal component damage. The Mishimoto MMTC-RPTR-TBVFF thermal bypass valve upgrade replaces the stock thermostat with a full-flow design, ensuring constant cooling from the moment the engine is started.

Constructed from CNC-machined aluminum for long-term durability, this direct-fit upgrade is ideal for vehicles operating in hot climates, heavy towing applications, or demanding off-road conditions. By maintaining a constant flow to the transmission cooler, it eliminates the risk of a malfunctioning internal thermostat. Installation is straightforward and typically takes approximately one hour using standard hand tools.

• Full-flow design ensures maximum transmission cooling efficiency
• CNC-machined aluminum housing replaces failure-prone factory unit
• Eliminates internal thermostat failure risks
• Direct-fit for factory mounting points and transmission lines
• Manufacturer Part Number: MMTC-RPTR-TBVFF

Fits 2017-2020 Ford F-150 (all trims including Raptor, Lariat, and King Ranch) equipped with the 3.5L engine and 10R80 transmission.

The 10R80 transmission is a robust unit, but the factory-equipped thermal bypass valve is a known weak point. This OE valve often malfunctions, restricting or entirely blocking fluid flow to the external transmission cooler. Such failures lead to rapid fluid temperature spikes, potential gear damage, and dashboard warning lights. The Mishimoto thermal bypass valve kit (MPN: MMTC-RPTR-TBV) solves this by replacing the stock unit with a durable, CNC-machined billet aluminum housing.

This kit includes a fully serviceable 160°F thermostat that ensures your transmission reaches operating temperature quickly in cold climates while maintaining optimal cooling during standard use. For owners in extreme heat or those frequently towing, the kit also includes a full-flow bypass assembly. This bypass allows constant fluid flow to the transmission cooler regardless of temperature, providing maximum protection against overheating. Installation is straightforward and typically takes about one hour using factory mounting points.

• Durable CNC-machined billet-aluminum construction replaces failure-prone plastic/cast OE units
• Includes 160°F serviceable thermostat for balanced thermal management
• Includes full-flow bypass pin for maximum cooling in extreme towing or hot climate conditions
• Helps prevent transmission overheating and extends fluid life
• Manufacturer Part Number: MMTC-RPTR-TBV
• Mishimoto Lifetime Warranty

Fits 2019-2024 Ram 2500 and 3500 (6.7L).

Protect your Aisin AS69RC transmission from catastrophic overheating with the Mishimoto Full-Flow Thermal Bypass Valve. The factory in-line bypass valve utilizes an internal thermostat that is prone to failure; if it sticks closed, fluid never reaches the transmission cooler, leading to excessive heat and internal component wear. The Mishimoto MMTC-RAM2-TBVFF replaces this restrictive factory unit, eliminating the thermostat to provide unrestricted fluid flow to the cooler in all operating conditions.

CNC-machined from billet aluminum, this upgrade is specifically designed for heavy-duty towing and high-load applications where cooling efficiency is critical. Beyond its robust construction, the valve body features integrated cooling fins to increase surface area for additional heat dissipation, while the internally optimized passages provide superior flow compared to the stock valve.

• Eliminates prone-to-failure internal thermostat for constant cooling flow
• CNC-machined billet aluminum construction for maximum durability
• Integrated cooling fins for enhanced heat dissipation
• Ideal for trucks used for heavy towing or in warm climates
• Direct-fit replacement for the factory in-line bypass valve
• Manufacturer Part Number: MMTC-RAM2-TBVFF
• Mishimoto Lifetime Warranty

Fits select 2013-2018 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine.

The transmission in your heavy-duty Ram is tasked with managing up to 930 lb-ft of torque, generating significant heat during towing and hauling. The factory cooling system on both the 68-RFE and Aisin AS69RC transmissions relies on an in-line thermal bypass valve to regulate fluid flow to the external cooler. However, the internal thermostat in the stock valve is a known failure point; if it sticks, fluid cannot reach the cooler, leading to rapid transmission overheating and potential internal damage.

The Mishimoto Full Flow Thermal Bypass Valve Kit solves this vulnerability by eliminating the internal thermostat entirely. This ensures 100% fluid flow to the transmission cooler at all times, providing maximum cooling efficiency for trucks in warm climates or those frequently used for heavy towing. CNC-machined from billet aluminum, the valve body features integrated cooling fins for additional heat dissipation and a silver anodized finish for long-term corrosion resistance.

• Direct replacement for the factory thermal bypass valve
• CNC-machined 6061 aluminum construction
• Eliminates failure-prone internal thermostat for constant fluid flow
• Integrated cooling fins for increased surface area and heat dissipation
• Durable silver anodized finish
• Estimated installation time: Less than 1 hour
• Manufacturer Part Number: MMTC-RAM-TBVFF
• Mishimoto Lifetime Warranty

Fits 1994-2002 Dodge Ram 2500 and 3500 (5.9L).

Heat is the primary enemy of any heavy-duty transmission, especially in Cummins-powered trucks used for towing, hauling, or high-performance driving. The Mishimoto direct-fit transmission cooler is engineered to significantly lower temperatures for your 2nd Gen Ram, utilizing a robust tube-and-fin core designed for maximum heat dissipation and reliability.

Compared to the stock unit, this cooler provides a massive 116% increase in core volume, a 141% increase in fluid capacity, and 134% more fin surface area. One common frustration with the 1994-2002 Ram is the factory quick-disconnect fittings, which often seize over time. To simplify installation, Mishimoto includes two CNC-machined, stainless steel hose barb fittings and a length of transmission fluid hose, allowing you to bypass worn factory connectors and secure the stock soft-line directly to the cooler.

• Direct-fit for 1994-2002 Dodge Ram 5.9L Cummins
• 116% increase in core volume over stock
• 141% increase in fluid capacity
• 134% increase in fin surface area
• Includes two CNC-machined stainless steel hose barb fittings
• Includes high-quality transmission fluid hose
• Backed by the Mishimoto Lifetime Warranty with Accident Protection
• MPN: MMTC-RAM-94SL

Fits 2025-2026 Ram 1500 (3.0L).

Protect your drivetrain from heat-induced wear with the Mishimoto Direct-Fit Transmission Cooler, engineered specifically for the 2025-2026 Ram 1500 with the 3.0L Hurricane engine. Whether you are towing heavy trailers, hauling work equipment, or navigating off-road terrain, maintaining optimal fluid temperatures is critical for transmission longevity. This cooler works alongside the factory system to provide a massive 60% increase in core volume and 25% greater fluid capacity compared to stock.

The high-efficiency tube-and-fin core maximizes heat transfer, ensuring your transmission remains within its ideal operating range even under high-load conditions. Installation is designed for the home mechanic: the kit includes quick-disconnect fittings and a removable mounting bracket to simplify hard-line attachment. No front grille removal is required for the install. Finished in a durable powder coating for superior corrosion resistance, this cooler is built to handle the rigors of the road and is backed by the Mishimoto Lifetime Warranty.

• Direct fit for 2025-2026 Ram 1500 (3.0L)
• 60% larger core volume than factory for increased cooling overhead
• 25% increase in fluid capacity to manage high thermal loads
• Tube-and-fin design for maximum heat dissipation efficiency
• No front grille removal required for installation
• Quick-disconnect fittings and removable bracket for simplified service
• Powder-coated finish for long-term durability
• Manufacturer Part Number: MMTC-RAM-25
• Mishimoto Lifetime Warranty

Fits 2019-2025 Ram 2500 and 3500 (6.7L Cummins).

Heat is the primary cause of transmission failure, especially when your 2019-2025 Ram is used for heavy towing, fleet service, or performance applications. The Mishimoto direct-fit transmission cooler (MMTC-RAM-19) is engineered to combat thermal stress by significantly increasing cooling capacity. Featuring a massive 64% thicker core than the factory unit, this cooler adds three additional rows of fins to maximize heat dissipation.

The tube-and-fin core is designed with internal fins (turbulators) that increase the surface area of the fluid-to-wall contact, ensuring more efficient heat transfer while reducing restriction. This design ensures that even under heavy load, your transmission fluid temperatures remain within safe operating ranges. Installation is straightforward; the cooler features bolt-on mounting tabs that allow it to be installed without removing the radiator or A/C condenser, and no cutting or modifications are required.

• 64% thicker core with 3 additional rows for superior cooling efficiency
• High-efficiency internal fins maximize fluid contact and heat transfer
• Tube-and-fin construction optimizes airflow while reducing fluid restriction
• Direct-fit design requires no cutting or modification to the vehicle
• Includes all necessary hardware for a clean, professional installation
• Manufacturer Part Number: MMTC-RAM-19
• Mishimoto Lifetime Warranty with Accident Protection

Fits 2015-2018 Ram 2500 and 3500 trucks (6.7L Cummins).

Heat is the primary cause of transmission failure, especially for 2015-2018 Ram 6.7L Cummins owners who tow heavy loads or work their trucks in demanding conditions. The Mishimoto MMTC-RAM-15SL is a direct-fit transmission cooler engineered to significantly increase cooling efficiency over the factory unit. This cooler utilizes a tube-and-fin core with internal fins to maximize surface area and ensure optimal fluid-to-tube contact.

Compared to the stock cooler, this unit provides a massive 112% increase in core volume, a 237% increase in external fin area, and a 226% increase in fluid capacity. These upgrades allow for better heat dissipation and improved thermal stability during high-load operations. Installation is straightforward with no cutting or modifications required, as it utilizes factory mounting points and includes all necessary hardware.

• Direct-fit for 2015-2018 Ram 2500/3500 (6.7L)
• 112% increase in core volume over stock
• 237% increase in external fin area
• 226% increase in fluid capacity
• Tube-and-fin construction with internal fins for maximum efficiency
• No cutting or modifications required for installation
• Includes all necessary hardware
• Mishimoto Lifetime Warranty with Accident Protection
• Manufacturer Part Number: MMTC-RAM-15SL

Fits 2013-2014 Ram 2500 and 3500 models with the 6.7L Cummins engine.

Heat is the primary enemy of any heavy-duty transmission, particularly when your Ram truck is used for towing, fleet work, or performance driving. The Mishimoto MMTC-RAM-13SL transmission cooler is a direct-fit solution designed to significantly lower fluid temperatures. This unit replaces the stock cooler with a high-capacity tube-and-fin core, requiring no cutting or modifications to the vehicle for a clean installation.

The Mishimoto cooler features a massive 82% increase in core volume and a 112% increase in external fin area compared to the factory unit. To further improve thermal efficiency, the tubes are equipped with internal fins that increase the fluid-to-surface contact area, ensuring more heat is pulled from the transmission fluid before it returns to the gearbox. With an increased 1.34-quart fluid capacity, this cooler provides the additional thermal overhead needed for demanding conditions.

• 82% increase in core volume over the stock transmission cooler
• 112% increase in external fin area for superior heat dissipation
• 1.34-quart fluid capacity for improved cooling system volume
• High-efficiency tube-and-fin core with internal tube fins
• Direct-fit installation requires no cutting or modification
• Manufacturer Part Number: MMTC-RAM-13SL
• Backed by the Mishimoto Lifetime Warranty

Fits select 2010-2013 Dodge and Ram 2500/3500 (6.7L Cummins).

The Mishimoto Transmission Cooler Bypass Kit is a purpose-built solution for Ram 6.7L Cummins owners who need to replace or upgrade their cooling system without the hassle of a full A/C service. This direct-fit line kit allows you to bypass the factory transmission cooler in the event of a transmission failure that has contaminated the stock unit. By utilizing this bypass, you can keep the factory cooler in place as a structural component, avoiding the need to discharge and recharge the A/C refrigerant or disturb vacuum lines.

Engineered specifically for use with the Mishimoto MMTC-RAM-10 Performance Transmission Cooler, this kit streamlines the installation process and ensures your drivetrain is protected from debris trapped in the original equipment. This is a critical upgrade for technicians and DIYers looking for a reliable, time-saving installation path that maintains system integrity.

• Bypasses the stock transmission cooler and A/C condenser unit
• Eliminates the need to discharge A/C refrigerant during installation
• Designed specifically for use with Mishimoto MMTC-RAM-10 Transmission Cooler
• Ideal for preventing cross-contamination after a transmission failure
• Includes all necessary hardware for a direct-fit installation
• Manufacturer Part Number: MMTC-RAM-10LK
• Mishimoto Lifetime Warranty

Fits select 2010-2013 Dodge and Ram 2500/3500 trucks (6.7L).

Engineered for heavy-duty towing and high-load cycles, the Mishimoto MMTC-RAM-10 Performance Transmission Cooler provides a substantial thermal upgrade over the factory unit. This direct-fit cooler utilizes a high-efficiency tube-and-fin core specifically optimized for rapid heat dissipation in 6.7L Cummins-powered trucks, preventing overheating during gear changes and steep climbs.

This transmission cooler features a massive 60% increase in core volume and an 86% increase in external fin area compared to the stock component. These improvements significantly enhance total cooling capacity, helping to maintain stable fluid temperatures and protect your transmission's internal components. For maximum protection against cross-contamination, this unit can be paired with an optional line kit (sold separately) to bypass the integrated factory cooler and A/C condenser assembly.

• Direct fit for 2010-2013 Dodge/Ram 2500/3500 (6.7L)
• 60% increase in core volume for enhanced fluid capacity
• 86% increase in external fin surface area for superior heat dissipation
• High-efficiency tube-and-fin construction
• Compatible with factory lines or Mishimoto bypass line kits
• Manufacturer Part Number: MMTC-RAM-10

Fits select 2003-2007 Dodge Ram 1500, 2500, and 3500 models (5.9L Cummins).

The factory transmission oil cooler in the 2003-2007 Dodge Ram 5.9L Cummins utilizes a liquid-to-liquid design, exchanging heat between the transmission fluid and the engine cooling system. Over time, internal fatigue can cause these units to fail, allowing coolant to mix with transmission fluid. This cross-contamination often leads to catastrophic transmission failure and costly rebuilds.

The Mishimoto Replacement Transmission Oil Cooler (MMTC-RAM-03TQ) offers a direct-fit solution that meets OEM specifications for fit and function. Constructed from durable, corrosion-resistant aluminum, this cooler installs without modifications to protect your drivetrain from premature failure. Each unit includes a new powdercoated bracket and brass fittings for a complete, professional installation.

• Direct-fit OEM replacement requires no modifications
• Liquid-to-liquid cooling design for efficient temperature regulation
• Durable, corrosion-resistant aluminum construction
• Includes powdercoated mounting bracket and brass fittings
• Manufacturer Part Number: MMTC-RAM-03TQ
• Backed by the Mishimoto Lifetime Warranty

Fits 2003-2009 Dodge Ram 2500 and 3500 models equipped with the 5.9L or 6.7L Cummins diesel engine.

Heat is the primary cause of transmission failure, especially in heavy-duty towing and fleet applications. The Mishimoto MMTC-RAM-03SL is a direct-fit performance transmission cooler designed to provide superior thermal management for your 48RE or 68RFE transmission. This cooler features a heavy-duty stacked plate core, offering significantly more surface area and fluid capacity than the restrictive factory unit.

A critical upgrade in this design is the serviceable thermostat. While the OE cooler’s thermostat often fails in the closed position—bypassing the cooler and sending hot fluid back to the transmission—the Mishimoto unit features a fully serviceable thermostat that can be easily bypassed for constant cooling. A convenient port at the top of the cooler allows for quick maintenance or bypass adjustment in minutes without removing the entire assembly.

• Direct-fit for 2003-2009 Dodge Ram 2500/3500 Cummins
• 212% increase in core volume compared to stock
• 244% increase in fluid capacity
• Durable stacked plate core construction
• Serviceable and bypassable thermostat design
• Top-mounted port for easy thermostat access
• Manufacturer Part Number: MMTC-RAM-03SL

Fits 2015-2017 Ford Mustang GT, GT Premium, and V6 models with automatic transmissions.

High-performance driving and track days can rapidly push transmission temperatures beyond safe limits. The Mishimoto MMTC-MUS-15SL is a direct-fit performance transmission cooler designed to provide superior thermal management for your S550 Mustang. Featuring a 20-row stacked-plate core, this unit offers twice the cooling capacity of the stock system to keep your automatic transmission functioning optimally under load.

• Proven 18°F drop in transmission fluid temperature with no additional fluid pressure drop.
• 180% increase in core volume compared to the stock 6-row transmission cooler.
• 20-row stacked plate design provides double the surface area of the factory unit.
• Direct-fit installation with no modifications required.
• Mishimoto Lifetime Warranty protects your investment.
• Manufacturer Part Number: MMTC-MUS-15SL

Fits select 2017-2019 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD (6.6L).

Protect your Allison 1000 transmission from heat-related failure with the Mishimoto Full-Flow Thermal Bypass Valve Kit. The factory L5P Duramax cooling system uses an in-line thermal bypass valve that restricts fluid flow to the cooler until operating temperatures are reached. When the internal thermostat in the stock unit fails, it can prevent fluid from ever reaching the cooler, leading to rapid overheating and transmission damage.

The Mishimoto upgrade replaces the restrictive factory unit with a CNC-machined billet aluminum valve that eliminates the internal thermostat entirely. This ensures full fluid flow to the transmission cooler at all times, making it an essential upgrade for trucks used for heavy towing, operation in warm climates, or high-performance applications. The valve body features strategically machined internal passages for improved flow and external cooling fins to assist in heat dissipation.

• Eliminates the failure-prone factory internal thermostat
• Provides constant fluid flow to the transmission cooler for maximum efficiency
• CNC-machined from 6061 billet aluminum with a durable black anodized finish
• Features external cooling fins for additional heat dissipation
• Straightforward installation typically takes less than one hour
• Includes Mishimoto Lifetime Warranty
• Manufacturer Part Number: MMTC-L5P-TBVFF

Fits select 2014-2019 Cadillac Escalade/ESV, Chevrolet Silverado 1500, Suburban, Tahoe, and GMC Sierra 1500, Yukon/XL V8 models.

Excessive heat is the primary enemy of any automatic transmission. Whether your vehicle is a dedicated tow rig, a hardworking fleet truck, or a daily driver, maintaining stable fluid temperatures is critical for longevity. The Mishimoto MMTC-K2-14 transmission cooler utilizes a rugged stacked-plate design to provide superior durability and high-efficiency cooling in demanding conditions.

This cooler mounts inline with the factory cooling system, adding 0.65 quarts of fluid capacity and over 3,000 square inches of surface area to increase your vehicle's cooling potential. The kit includes a thermal bypass valve delete, allowing fluid to flow to the cooler at all times for consistent temperature management. Installation is streamlined with CNC-machined mounting brackets, a relocation bracket for the ambient air temperature sensor, and high-grade transmission cooler hoses that connect directly to the stock system.

• Stacked-plate construction for maximum durability and heat dissipation
• Adds 0.65 quarts of transmission fluid capacity
• Over 3,000 square inches of cooling surface area
• Includes thermal bypass valve delete for constant fluid flow
• CNC-machined mounting brackets for secure fitment
• Direct-fit adapter lines for easy integration with factory systems
• Manufacturer Part Number: MMTC-K2-14

Fits select 2018-2025 Jeep Wrangler JL and 2020-2025 Jeep Gladiator JT models.

Whether you are cruising the highway or crawling technical trails in Moab, maintaining stable transmission temperatures is critical for the longevity of the ZF 8-speed transmission. The Mishimoto performance transmission cooler is engineered to overcome the limitations of the cramped factory cooling stack, maximizing thermal efficiency for both on- and off-road applications.

This cooler significantly outperforms the stock unit by expanding the core's dimensions and internal architecture. By increasing the external tube area by 93% and the external fin area by 32%, it captures more ambient airflow through the Jeep's grille. Internally, unique fins within the tubes provide a 195% increase in surface area, ensuring maximum heat transfer as fluid passes through. With an 83% increase in total fluid capacity, your drivetrain remains protected even during low-speed, high-load crawling.

• 83% increase in fluid capacity over the stock transmission cooler
• 93% increase in external tube area for improved airflow utilization
• 195% increase in internal fin surface area for comprehensive cooling
• 32% increase in external fin area
• Custom-designed for the 2018-2025 Jeep Wrangler JL and 2020-2025 Gladiator JT
• Backed by the Mishimoto Lifetime Warranty
• Manufacturer Part Number: MMTC-JL-18SL

Fits select 2005-2020 Chrysler 300, Dodge Charger, Challenger, Durango, Magnum, and Nitro, Jeep Wrangler, Grand Cherokee, Liberty, and Commander, and Ram 1500 and 2500.

Protect your drivetrain with the Mishimoto Full-Flow Transmission Thermal Bypass Valve Upgrade. Factory transmission cooling systems often utilize a thermostatic bypass valve designed to restrict fluid flow to the cooler until operating temperatures are reached. While intended to prevent overcooling, these OEM valves are a notorious failure point; a stuck thermostat can quickly lead to catastrophic transmission overheating. This Mishimoto upgrade replaces the restrictive factory unit with a CNC-machined, all-aluminum full-flow housing.

By allowing transmission fluid to circulate through the cooler immediately upon startup, this kit eliminates the risk of thermostat failure and provides maximum cooling efficiency. This is an essential upgrade for vehicles operating in hot climates, those used for heavy towing, or Jeeps tackling demanding off-road trails. The kit is designed for a direct-fit installation, typically completed in under an hour using basic hand tools.

• Replaces failure-prone factory thermostatic bypass valve
• Full-flow design ensures immediate transmission fluid cooling
• Precision CNC-machined aluminum construction
• Direct-fit for select 2005-2020 Mopar applications
• Installs in less than 1 hour
• Manufacturer Part Number: MMTC-JK-TBVFF
• Mishimoto Lifetime Warranty included

Fits select 2005-2020 Chrysler 300, Dodge Charger, Challenger, Durango, Magnum, Nitro, Jeep Wrangler, Grand Cherokee, Commander, Liberty, and Ram 1500/2500.

Protect your drivetrain with the Mishimoto Transmission Thermal Bypass Valve Kit. In many late-model Chrysler, Dodge, and Jeep vehicles, the factory thermostatic bypass valve is a common failure point that can lead to catastrophic transmission overheating. The Mishimoto performance bypass valve replaces the restrictive OE unit with a high-flow, CNC-machined billet aluminum housing designed for maximum cooling efficiency and reliability.

This kit features a serviceable 160°F (71°C) thermostat that allows the transmission to reach operating temperature quickly in cold climates while preventing overcooling. For enthusiasts in warmer regions, the kit includes a bypass plug that can be swapped in place of the thermostat to allow full flow to the transmission cooler at all times. The anodized aircraft-grade aluminum construction ensures long-term durability against road salt and harsh environments.

• Direct-fit for 2005-2020 models; installs in less than 1 hour
• CNC-machined 6061 billet aluminum construction with a durable anodized finish
• Includes serviceable 160°F (71°C) thermostat and optional full-flow bypass plug
• Increased flow capacity compared to the factory stock valve
• Manufacturer Part Number: MMTC-JK-TBV
• Mishimoto Lifetime Warranty

Fits select 1999-2014 Cadillac Escalade, Chevrolet Silverado, Suburban, Tahoe, Avalanche, and GMC Sierra (1500/2500/3500).

Excessive heat is the primary enemy of any automatic transmission. Whether your GMT800 or GMT900 platform truck is a dedicated tow rig, a fleet workhorse, or a daily driver, maintaining stable fluid temperatures is critical for drivetrain longevity. The Mishimoto Performance Transmission Cooler is engineered to provide massive cooling overhead compared to the restrictive factory unit.

This cooler utilizes a durable stacked-plate design with internal fins and louvered external fins to optimize heat transfer. With a massive core volume 521% larger than stock and a 278% increase in frontal surface area, it significantly improves cooling capacity during heavy towing or low-speed off-road use. The kit includes precision-machined -6ORB quick-disconnects that mate directly to factory lines or can be removed to accommodate custom -6AN lines.

• 521% increase in core volume over the factory cooler for superior fluid capacity
• 278% increase in frontal surface area for improved heat dissipation at any speed
• Robust stacked-plate construction for maximum durability on or off-road
• Includes -6ORB quick-disconnect fittings compatible with factory transmission lines
• Supplied ambient air temperature sensor relocation bracket maintains full truck functionality
• Adjustable mounting bracket allows for a straightforward installation in under an hour
• Backed by the Mishimoto Lifetime Warranty with Accident Protection
• Manufacturer Part Number: MMTC-GMT-99

Fits select 2012-2024 Chrysler 300, Dodge Challenger, Dodge Charger, and Ram 1500 TRX with 8HP45 or 845RE transmissions.

The transmission in your Mopar vehicle is the core of its drivetrain performance. To balance cold-weather drivability, Chrysler and Dodge utilized a thermostatic bypass valve in the cooler lines. While designed to reach operating temperature faster, this valve represents a critical failure point; if the internal thermostat sticks, it can lead to rapid transmission overheating and catastrophic failure. For those in warmer climates or those subjecting their vehicles to high-stress driving, this valve also acts as a useless flow restriction.

The Mishimoto Full-Flow Transmission Thermal Bypass Valve Kit (MMTC-GMP-TBVFF) replaces the factory unit with a precision CNC-machined aluminum housing. This full-flow design allows transmission fluid to circulate through the cooler immediately upon startup, providing maximum cooling efficiency and eliminating the risk of a failed thermostat. It is an essential upgrade for towing, track use, or high-ambient temperature environments.

• Direct-fit for vehicles equipped with 8HP45 or 845RE transmissions
• Full-flow design provides immediate cooling and eliminates thermostatic failure points
• Precision CNC-machined aluminum construction for long-term durability
• Straightforward installation typically completed in under one hour
• Mishimoto Lifetime Warranty

• Manufacturer Part Number: MMTC-GMP-TBVFF
• Material: 6061 Aluminum
• Transmission Compatibility: 8HP45, 845RE, 8HP series
• Installation Time: <1 Hour