Fits 2003-2005 Chevrolet Silverado and GMC Sierra 2500 HD/3500 (6.6L Duramax LB7/LLY).

Excessive heat is the primary cause of transmission failure, especially in heavy-duty applications like towing or hauling. The Mishimoto MMTC-DMAX-03SL transmission cooler provides a significant upgrade over the factory unit, utilizing a rugged stacked-plate design for maximum durability and thermal efficiency. This direct-fit cooler is engineered to keep your Allison transmission within safe operating temperatures whether on the job site or the drag strip.

The Mishimoto core is substantially larger than the stock unit, boasting a 174% increase in core volume and 192% more fin surface area. This increased capacity allows for superior heat dissipation without sacrificing airflow to the rest of the cooling stack. Installation is straightforward with included CNC-machined adapters that connect directly to the OEM transmission fluid lines or aftermarket AN lines. Tailor-made hoses and direct-fit brackets ensure a secure, leak-free mount using factory locations.

• Direct-fit for 2003-2005 6.6L Duramax (LB7/LLY) equipped with the Allison transmission
• Heavy-duty stacked-plate construction for superior durability
• 174% increase in core volume over the stock cooler
• 192% increase in fin surface area for enhanced cooling
• Includes CNC-machined adapters for leak-free connection to factory lines
• Mishimoto Lifetime Warranty

Fits 2001-2003 Chevrolet Silverado 2500 HD/3500 and GMC Sierra 2500 HD/3500 (6.6L Duramax LB7).

Excessive heat is the primary cause of transmission failure, especially in heavy-duty applications like towing or hauling. The Mishimoto MMTC-DMAX-01SL transmission cooler is a direct-fit solution engineered to keep fluid temperatures stable on your 2001-2003 Duramax. Utilizing a high-efficiency stacked-plate design, this cooler provides superior durability and thermal management compared to the factory equipment.

This upgrade significantly increases cooling capacity, boasting a 174% greater core volume and a 192% greater fin surface area than the stock core. To ensure a reliable, leak-free installation, the kit includes CNC-machined adapters that connect directly to the factory transmission lines or aftermarket AN lines. Direct-fit brackets and application-specific hoses are provided to simplify the installation process.

• Direct-fit for 2001-2003 Chevrolet/GMC with Allison transmission
• High-efficiency stacked-plate construction for maximum heat dissipation
• 174% increase in core volume and 192% increase in fin surface area
• CNC-machined adapters for leak-free connections to stock or AN lines
• Includes direct-fit brackets and tailor-made hoses for easy installation
• Backed by the Mishimoto Lifetime Warranty
• Manufacturer Part Number: MMTC-DMAX-01SL

Fits select 2010-2024 Toyota 4Runner models (4.0L), including SR5, Limited, Trail, TRD Pro, TRD Off-Road, and TRD Sport.

Protect your fifth-generation 4Runner from the primary cause of transmission failure: heat. This Mishimoto direct-fit transmission cooler is specifically engineered to handle the increased thermal loads of overlanding, towing, and technical trail use. It functions as a supplemental system, working in tandem with the factory in-tank cooler to significantly increase cooling capacity without removing OEM components.

The kit features a high-efficiency tube-and-fin core equipped with internal fins for maximum heat transfer. Construction includes durable powder-coated external surfaces and transmission lines that meet strict SAE J1532 standards for high-pressure reliability. This complete kit arrives with all necessary hardware and pre-cut hoses to facilitate a seamless installation that integrates perfectly with either OEM or Mishimoto radiators.

• Manufacturer Part Number: MMTC-4RUN-10
• Direct-fit for 2010-2024 Toyota 4Runner (5.1L V6)
• High-efficiency tube-and-fin core with internal cooling fins
• Transmission lines compliant with SAE J1532 standards
• Durable powder-coated finish for corrosion resistance
• Includes pre-cut hoses, fittings, and installation hardware
• Covered by Mishimoto Lifetime Warranty with Accident Protection

Maintain optimal drivetrain temperatures and protect your transmission with the Mishimoto Heavy Duty Transmission Cooler Kit (MMOC-F). Fits select 2018-2021 Ford Mustang GT, Bullitt, and Mach 1 models.

Engineered for high-stress environments—including heavy-duty use and forced induction (supercharged or turbocharged) applications—this kit ensures transmission fluid remains within safe operating ranges. The core is manufactured from 100% aluminum using a robust tube-and-fin construction for efficient thermal transfer. To provide active cooling even at low speeds or when stopped, the kit includes a high-flow 8-inch electric fan. This active cooling setup is essential for vehicles pushing higher power levels or operating in demanding conditions.

• 100% aluminum tube-and-fin construction for durability and heat dissipation
• Integrated 8-inch electric fan for consistent airflow across the core
• Ideal for supercharged, turbocharged, or heavy-duty applications
• Helps extend transmission life by preventing fluid breakdown
• Includes mounting equipment for a complete installation
• Manufacturer Part Number: MMOC-F

Vehicle Fitment

Fits 2021-2025 Ford Bronco models (2.7L EcoBoost) across all trims including Badlands, Wildtrak, and Outer Banks.

Maintaining stable transmission temperatures is essential for the Ford Bronco, particularly during low-speed crawling or heavy towing. The CSF 8350 External Transmission Oil Cooler Kit is a heavy-duty cooling solution designed to replace restrictive factory components with a high-efficiency aluminum core. This kit utilizes a 26mm 12-channel microtube design, providing 11 rows of cooling tubes and 12 rows of multi-louvered fins for maximum heat dissipation.

For superior reliability, CSF partnered with DYME PSI to integrate Pro/Spec Quick Release Fittings. These race-proven fittings are rated for up to 10,000 PSI and allow for tool-free maintenance or fluid changes. The system is plumbed with Superstrasse CPE-lined stainless steel braided hoses, ensuring maximum chemical resistance and durability in harsh off-road environments. A CNC-machined billet thermostatic plate is included to regulate flow between 185°F and 203°F, ensuring the transmission reaches operating temperature quickly while preventing overheating under load.

• High-pressure 26mm 12-channel microtube core for optimal surface area contact
• 11 rows of cooling tubes with 12 rows of 8mm multi-louvered fins
• Patented DYME PSI quick-release fittings for tool-free clamshell removal
• Superstrasse CPE-lined stainless steel braided rubber hoses
• CNC billet machined thermostatic plate (185-203°F / 85-95°C)
• 100% all-aluminum TIG-welded construction
• Includes all vehicle-specific brackets and mounting hardware
• Manufacturer Part Number: 8350
• 2-Year Limited Warranty

Fits select 2021-2025 BMW M2, M3, and M4 (G8X) models.

The CSF 8221 High-Performance Dual-Core Transmission Oil Cooler is an essential upgrade for G8X owners who demand superior thermal management during road racing, drag racing, or high-performance street driving. This drop-in replacement utilizes a dual-core design that provides a massive 194% increase in core and tank volume over the factory unit, significantly reducing transmission fluid temperatures under high-load conditions and with aftermarket transmission tuning.

Engineered using CSF’s advanced AC condenser technology, the cooler features a 1-row, super-high pressure 16mm 9-channel microtube for maximum surface area contact and optimized oil flow. The system includes an integrated front rock guard to protect the core from debris and utilizes OEM-style "Quick Connect" inlet/outlet ports for a seamless installation using factory rubber seals.

• Fluid Capacity: 1700ml (94% increase over OEM 875ml)
• Core Thickness: 44mm (Two 22mm stacked cores)
• Construction: 32 total rows (16 rear / 16 front)
• Overall Height: 191mm (vs. OEM 155mm)
• Direct "Drop-in Fit" requires no vehicle modifications
• Compatible with CSF #8215 Heat Exchanger or OEM cooling systems
• Manufacturer Part Number: 8221
• 2-Year Limited Warranty

Fits select 2020-2025 Toyota GR Supra and BMW M240i, M340i, M440i, and Z4 M40i models. This high-performance DCT transmission oil cooler is engineered to eliminate gearbox fatigue and sluggish shifting caused by overheating during track use, time attack, or high-output street driving.

Using an industry-exclusive dual-core design, CSF has engineered a drop-in cooling solution that provides a 240% increase in core volume over the factory unit. By stacking two 16mm cores for a total width of 32mm, this cooler significantly increases thermal mass and heat dissipation without blocking airflow to the rest of the cooling stack. The design utilizes CSF’s AC condenser technology, featuring a 1-row super-high pressure 9-channel microtube for maximum oil flow and surface area contact.

• Dual-core design provides 240% increase in core volume over OEM
• 130% increase in fluid capacity (CSF 550ml vs. OEM 240ml)
• 32mm total core width using two 16mm stacked cores
• High-efficiency 5.4mm tall multi-louvered fins
• Rear cooler features 15 rows; front cooler adds 12 additional rows
• 129mm overall height for maximum performance without blocking airflow
• Utilizes OEM-style "Quick Connect" inlet/outlet connections
• Drop-in fitment requires no modifications and uses factory rubber seals
• Compatible with CSF High-Performance Heat Exchanger (#8154)
• Manufacturer Part Number: 8183

Fits select 2015-2025 Ford F-150 and Raptor models (including XL, XLT, Lariat, King Ranch, Platinum, Limited, Tremor, STX, SSV, and Police Responder).

The 13th and 14th Generation Ford F-150s often suffer from undersized transmission cooling, even on Raptor models equipped with a secondary stack-style cooler. The CSF 8102 High-Performance Transmission Oil Cooler addresses this by providing a core 40% larger than the factory unit. Engineered with CSF's AC Condenser technology, it utilizes a 26mm 10-channel microtube to maximize oil flow and surface area contact for superior heat dissipation.

• Part Number: 8102
• Construction: Welded all-aluminum with laser-cut mounting brackets
• Core Technology: 1-row super-high pressure 26mm 10-channel microtube
• Fin Design: 8 rows of 8mm tall multi-louvered fins for maximum efficiency
• Installation: Direct drop-in fit with OEM-style inlet/outlet connections; no modifications required
• Finish: Stealthy black finish for an OEM+ appearance
• Warranty: 2-year limited manufacturer warranty

Fits select 2007-2017 Ford F-150, Ford Expedition, and Lincoln Navigator (including SVT Raptor).

Upgrade your vehicle’s cooling capacity with the CSF 8101 All-Aluminum Transmission Oil Cooler. Engineered for heavy-duty applications such as towing, off-roading, and hauling, this drop-in replacement is 30% larger than the factory unit. It utilizes CSF’s specialized AC condenser technology, featuring a 1-row, 26mm 10-channel microtube for high-pressure durability and maximum fluid-to-surface area contact.

Built for an OEM+ look with a durable black finish, this cooler helps maintain optimal fluid temperatures to extend transmission life and prevent performance limitations during demanding driving. The all-aluminum welded construction provides a significant reliability upgrade over stock units with plastic components.

• Direct drop-in fit with no modifications required for installation
• 1-row 26mm super-high pressure 10-channel microtube technology
• 20 rows of 8mm tall multi-louvered fins for maximum heat dissipation
• OEM-style inlet/outlet connections for a secure, leak-free fit
• Fully welded all-aluminum construction
• 30% larger than the factory transmission cooler
• Satin black finish for a clean, factory-plus appearance
• Manufacturer Part Number: 8101
• Includes 2-year limited warranty

Fits 2009-2013 Cadillac Escalade (6.0L).

Protect your drivetrain from excessive heat with the CSF 20025 Transmission Oil Cooler. Specifically engineered as a direct replacement for the 2009-2013 Cadillac Escalade with the 6.0L engine, this cooler helps maintain optimal transmission fluid temperatures during heavy-duty use, stop-and-go driving, or towing. By dissipating heat more efficiently, it prevents fluid breakdown and protects critical internal components from premature wear.

• Manufacturer Part Number: 20025
• Direct Fit: Designed to install into factory mounting locations for a seamless replacement process.
• Construction: Built with high-quality materials to resist corrosion and handle high-pressure fluid flow.
• Optimized Cooling: Ensures consistent heat transfer to keep the transmission within its ideal operating temperature range.

Fits 2007-2009 Dodge Ram 2500 trucks (6.7L).

This CSF transmission oil cooler is a heavy-duty replacement designed to maintain optimal fluid temperatures and protect your drivetrain from heat-related wear. Engineered as a direct fit for the 6.7L Cummins-equipped Ram 2500, this unit restores cooling efficiency lost to clogged or leaking factory coolers, which is critical for trucks used in towing or hauling applications.

• Direct replacement for factory transmission oil cooler
• Maintains consistent fluid temperatures to prevent transmission overheating
• Constructed to meet or exceed original equipment durability and performance
• Manufacturer Part Number: 20009

Designed for heavy-duty 6.6L and 6.7L diesel applications, the BD Diesel Xtrude Transmission Oil Cooler (MPN 1300611) provides superior thermal management for street, towing, and race track use. This high-efficiency cooler utilizes a micro-extruded design to maximize heat transfer, preventing transmission overheating even under extreme loads exceeding 30,000 GVW.

• 200 micro-extruded passages for maximum heat dissipation
• Provides 57% more cooling surface area and 95% better heat dissipation than standard designs
• Includes an 80-watt, 10-inch, 800 CFM electric fan (IP54 rated, 65% duty cycle)
• Furnace-brazed rails pressure tested to 300 psi for leak-free reliability
• High-flow turbulent oil design promotes complete cooling with large 5/8-inch ports to prevent restriction
• Thermal capacity rated at 33,930 BTU/HR
• Manufacturer Part Number: 1300611
• Warranty: 12-month or 12,000-mile limited warranty

Fits select diesel vehicles with 6.6L and 6.7L engines. The BD Diesel Xtrude Double Stacked Transmission Cooler is a high-efficiency heat exchanger designed for heavy-duty towing and performance applications where managing fluid temperature is critical to transmission longevity.

This double-stacked core configuration delivers over 40,000 BTU/HR of cooling capacity, providing a 136% better temperature drop than the Xtrude single-core kit and over a 350% improvement compared to the factory cooling system. The integrated motor is IP54 rated for environmental protection and features a 65% duty cycle to maintain airflow under sustained loads. Please note: this part (1300601-DS) includes the cooler assembly only; it does not include an installation kit.

• Double stacked cores deliver over 40,000 BTU/HR of cooling
• 136% better temperature drop than Xtrude single core kit
• Over 350% temperature drop versus the factory system
• IP54 rated motor with 65% duty cycle
• Cooler assembly only (no install kit)
• Manufacturer Part Number: 1300601-DS
• 12-Month / 24,000-Mile Warranty

Fits select 1994-2024 Dodge, Ford, and Ram trucks (6.6L / 6.7L) including those equipped with Dodge 47RH, 47RE, 48RE, 68RFE or Ford 5R110 and 6R140 transmissions.

The BD Diesel Xtrude Double Stacked Transmission Cooler Kit is engineered to provide maximum thermal management for heavy-duty towing and racing applications. Featuring double-stacked cores, this kit delivers over 40,000 BTU/HR of cooling capacity, representing a 350% temperature drop over the factory system and a 136% improvement over single-core kits. The turbulent oil flow design ensures efficient heat transfer, while the 10-inch, 80-watt electric fan provides 800 CFM of thermostatically controlled airflow to prevent overheating during low-speed or high-load conditions.

• Double stacked cooling cores rated for over 40,000 BTU/HR
• Thermostatically controlled 10-inch, 800 CFM electric fan
• Large 5/8-inch ports to prevent inlet and outlet restriction
• Furnace-brazed rails pressure tested to 300 psi
• 1/2-inch cooler lines for high-flow compatibility
• Includes galvanized "Build-It-Yourself" bracket kit for custom mounting
• Complete wiring harness with fuse, relay, and plug-in connectors
• Manufacturer Part Number: 1030606-DS-12

Fits select 1994-2024 Dodge Ram, Ford Super Duty, and Ram trucks (6.6L / 6.7L). This BD Diesel Xtruded Transmission Oil Cooler is engineered to manage high-heat loads in towing, street, and race applications, offering 22% more cooling capacity than traditional designs.

The core features 200 micro-extruded passages that create turbulent oil flow for maximum heat transfer, rated at 33,930 BTU/HR and supporting over 30,000 GVW. To ensure consistent performance even at low speeds or while idling, the kit includes a thermostatically controlled 80-watt, 10-inch electric fan pushing 800 CFM. The furnace-brazed rails are pressure tested to 300 psi for long-term reliability in high-pressure environments.

Installation is streamlined with the included Build-It-Yourself galvanized bracket kit and a pre-wired loomed harness featuring a fuse, relay, and plug-in connectors. Large 5/8-inch ports prevent inlet and outlet restrictions to maintain optimal flow.

• Manufacturer Part Number: 1030606-1/2
• Cooling Capacity: 33,930 BTU/HR
• Fan Specs: 10-inch, 80-watt, 800 CFM
• Fittings: 1/2-inch cooler lines with 5/8-inch ports
• Construction: 200 micro-extruded passages, furnace-brazed rails
• Warranty: 12 Months or 24,000 Miles

Fits select 2022-2026 Toyota Tundra and 2023-2024 Toyota Sequoia models.

The aFe Power BladeRunner Transmission Oil Cooler kit (MPN 46-80009) is engineered to maintain optimal fluid temperatures and extend the service life of your transmission. This kit utilizes a 25-row all-aluminum stacked plate design, which provides superior heat dissipation and lower pressure drop compared to standard tube-and-fin coolers. Capable of reducing transmission fluid temperatures by up to 30°F, it is a critical upgrade for vehicles used in towing or high-load environments.

This direct-fit system installs in-line with factory equipment using vehicle-specific mounting brackets and requires no cutting or permanent modification to your Toyota's hardware. The cooler features a durable black finish with a laser-etched aFe POWER logo, paired with black-anodized billet aluminum AN fittings for a secure, leak-proof connection.

• Construction: 25-row all-aluminum stacked plate design for maximum heat transfer efficiency.
• Performance: Provides transmission fluid temperature reductions of up to 30°F.
• Installation: Direct-fit brackets and stainless steel hardware included; no cutting or factory modification required.
• Included Hardware: Durable 3/8” oil hose and black-anodized billet aluminum AN fittings.
• Finish: Durable black finish with laser-engraved aFe POWER logo.
• Manufacturer Part Number: 46-80009

Fits 2021-2023 Ram 1500 TRX and TRX Launch Edition (V8-6.2L).

The aFe POWER BladeRunner Transmission Oil Cooler is engineered to manage the extreme heat generated by the high-output 6.2L V8 engine. Featuring a brazed all-aluminum stacked-plate construction, this cooler provides superior thermal efficiency and lower pressure drop compared to standard tube-and-fin designs. By reducing transmission fluid temperatures by up to 30°F, this kit helps maintain fluid viscosity and extends the service life of your transmission components under heavy-duty use.

Designed for a clean, professional installation, this kit utilizes direct-fit mounting brackets and plug-and-play adapters that require no cutting or modification to your factory hardware. The system is secured with black-anodized billet aluminum AN -8 fittings and durable 1/2-inch oil hoses for a leak-proof seal under demanding conditions.

• Reduced Temperatures: Provides transmission temperature reductions of up to 30°F.
• Stacked-Plate Design: All-aluminum construction for optimal heat transfer and durability.
• Leak-Proof Connections: Includes black-anodized billet aluminum AN -8 fittings and 1/2" oil hose for long-lasting reliability.
• Bolt-On Installation: Direct-fit brackets and stainless steel hardware for a secure fit without drilling or cutting.
• Finish: Durable black finish with laser-etched aFe POWER logo.
• Manufacturer Part Number: 46-80006

Fits 2010-2012 Dodge and Ram 2500/3500 trucks (L6-6.7L diesel).

Keep your transmission fluid temperatures in check during heavy towing or rock-crawling with the aFe POWER BladeRunner Transmission Oil Cooler Kit. This kit is designed to work in-line with your vehicle’s factory transmission cooler, providing an additional layer of heat rejection to prevent fluid breakdown and protect your drivetrain under load. The cooler features a brazed all-aluminum stacked-plate construction, which offers superior thermal efficiency and a lower pressure drop compared to standard tube-and-fin designs.

Installation is straightforward and requires no cutting or modification of factory hardware. The kit includes direct-fit mounting brackets and plug-and-play transmission line adaptors for a clean, secure fit. High-quality AN -8 connections ensure a leak-proof seal, while the durable black finish and laser-etched logo provide a professional, sleek appearance under the hood.

• Brazed all-aluminum stacked-plate design for maximum heat transfer efficiency
• Includes black-anodized billet aluminum AN -8 fittings for secure, leak-proof connections
• Supplied with durable 1/2-inch oil hose and stainless steel hardware
• Direct-fit mounting brackets for a secure installation without modifications
• Black powder-coated finish with laser-etched aFe POWER logo
• Manufacturer Part Number: 46-80005