Fits select 2014-2020 Chevrolet and GMC vehicles with GM LT-series engines (including LT1, LT4, L83, and L86).

This Granatelli Motor Sports thermostat housing replaces the restrictive factory component with a high-flow, CNC-machined billet aluminum assembly. Precision-engineered for a direct bolt-on installation, this housing provides superior durability over the stock cast or plastic units, eliminating common failure points while enhancing the look of your engine bay with a sleek black anodized finish.

The included 180-degree thermostat is designed to open earlier than the standard OE unit, promoting lower coolant temperatures. This is a critical upgrade for high-performance or forced induction applications where managing heat soak is essential for maintaining consistent power delivery and engine longevity.

• CNC-machined from high-grade 6061-T6 billet aluminum
• Includes performance-rated 180-degree thermostat
• Durable black anodized finish for maximum corrosion resistance
• Direct replacement for the original equipment housing
• Designed specifically for the GM LT engine platform

Fits select 2014-2020 GM LT-series V8 engines.

Manage engine temperatures more effectively with the Granatelli Motor Sports Billet Thermostat Housing. This precision CNC-machined component replaces the factory cast unit with a durable billet housing featuring a sleek black finish. It includes a 160-degree thermostat, which opens earlier than the stock unit to allow coolant circulation at lower temperatures. This is a vital upgrade for high-performance and forced induction LT engines where heat management is critical for maintaining consistent power and preventing heat soak.

• Fits 2014-2020 GM LT engines
• CNC-machined billet construction for superior durability
• Includes 160-degree low-temperature thermostat
• Black finish for a professional, clean look under the hood
• Direct-fit replacement for the original equipment housing

Maintain precise control over your engine oil temperatures with the Mishimoto MMTS-SPT-85 replacement thermostat element. This component is specifically engineered for use within Mishimoto oil sandwich plates, providing a reliable solution for refreshing a worn unit or adjusting your cooling system's activation point.

This thermostat is rated for an opening temperature of 85°C (185°F), ensuring your oil reaches operating temperature efficiently before being routed through the external cooler. It serves as a direct replacement for the internal thermostat element found in the MMOP-SPT series plates, restoring the thermal management performance your high-performance engine requires.

• Opening Temperature: 85°C (185°F)
• Direct replacement for thermostat in MMOP-SPT sandwich plates
• Optimizes oil flow for thermal efficiency and reliability
• Manufacturer Part Number: MMTS-SPT-85
• Mishimoto Lifetime Warranty

Fits select 2003-2021 Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L, 6.1L, 6.2L Hellcat, and 6.4L Hemi engines.

This Granatelli 180-degree thermostat is a direct-fit replacement for the factory cooling unit, designed to open at a lower temperature than the standard OE component. By allowing coolant to circulate through the radiator earlier, it helps maintain lower engine operating temperatures, which is critical for preventing heat soak and maintaining consistent performance during high-load driving or towing.

• Opening Temperature: 180 Degrees Fahrenheit
• Direct-fit replacement for the factory thermostat
• Helps reduce engine operating temperatures to maximize power and efficiency
• Compatible with naturally aspirated and forced induction Hemi applications
• Manufacturer Part Number: 43080T

Fits select 1972-1993 Jeep CJ5, CJ6, CJ7, Wagoneer, and Grand Wagoneer models equipped with 5.0L, 5.9L, or 6.6L engines.

Maintain the integrity of your Jeep's cooling system with this Omix thermostat housing. This component is designed to restore factory performance and cooling efficiency by providing a precise, direct-fit replacement for cracked, corroded, or warped original housings. Manufactured to meet or exceed OE quality standards, this housing ensures a reliable seal and proper coolant flow between the engine and the radiator.

• Direct OE-style replacement for a hassle-free installation
• Cast construction designed for durability and long service life
• Engineered for a precise fit on specific V8 and inline engine configurations
• Manufacturer Part Number: 17118.05
• Replaces OE Number: 3238509
• Compatible with thermostat housing gasket 17117.04 (sold separately)

Backed by a limited 5-year warranty, this housing provides the reliability needed for both daily driving and rugged trail use.

Fits 1997-2013 Nissan Patrol Y61 (4.8L).

The Mishimoto Racing Thermostat is designed to improve cooling efficiency by activating at a lower temperature than standard factory thermostats. This allows coolant to flow through the system earlier, effectively reducing and maintaining lower engine temperatures during operation.

This direct-fit thermostat is an essential upgrade for vehicles in hot climates or those with power-adding modifications that generate additional heat. By promoting earlier circulation, it helps protect your engine from high coolant temperatures under load.

• Promotes greater cooling efficiency for 4.8L engines
• Opens at a lower temperature to initiate cooling sooner
• Direct-fit replacement for the OE thermostat
• Designed for high-heat environments and modified vehicles
• Manufacturer Part Number: MMTS-Y61-97

Fits select 2004-2019 Nissan Titan and Titan XD models equipped with the 5.0L engine. This Mishimoto low-temperature thermostat is a precision-engineered cooling solution designed to improve the reliability and thermal management of your heavy-duty cooling system.

By replacing a worn factory unit or upgrading for performance, this thermostat helps prevent engine overheating and potential internal damage. It is a direct-fit replacement that installs into the factory housing without modification. The Mishimoto unit features a lower activation temperature of 180°F, compared to the 200°F OEM standard. This allows coolant to circulate through the block earlier, maintaining lower operating temperatures and providing a larger margin of safety during extreme towing or high-ambient heat conditions.

• Direct-fit for the 2004-2019 Nissan Titan and Titan XD 5.0L
• 180°F activation temperature for earlier coolant flow
• Ideal for warm climates and heavy towing applications
• Constructed for long-term reliability and precise thermal response
• Manufacturer Part Number: MMTS-XD-16L
• Mishimoto Lifetime Warranty included

Fits select 2004-2019 Nissan Titan and Titan XD models (5.0L).

Engineered for owners in colder climates, the Mishimoto High-Temperature Thermostat improves the efficiency of your 5.0L cooling system by adjusting the activation threshold. While a defective thermostat can lead to overheating or internal engine damage, this unit serves as a direct-fit replacement to ensure reliable operation and faster engine warm-up.

By increasing the activation temperature to 205°F (96°C)—compared to the factory 200°F (93°C) setting—this thermostat restricts coolant circulation for a longer duration. This allows the engine to reach its optimal operating temperature more quickly, improving cabin heater performance and engine efficiency in freezing conditions.

• Direct-fit replacement for the factory thermostat
• Higher activation temperature: 205°F (stock is 200°F)
• Designed specifically for quicker warm-up in cold climates
• Mishimoto Lifetime Warranty
• Manufacturer Part Number: MMTS-XD-16H

Fits select 2014-2026 Subaru Ascent, Crosstrek, Forester, Impreza, Legacy, Outback, and WRX models.

The Mishimoto Racing Thermostat is designed to promote greater cooling efficiency for both stock and modified Subaru engines, including the FA20DIT. By opening at a lower temperature than standard factory units, this thermostat allows coolant to flow through the system earlier, effectively reducing and maintaining lower overall engine temperatures during spirited driving or track sessions.

As a direct replacement for the OEM unit, this thermostat is an essential upgrade for owners looking to manage heat soak and protect engine internals. The lower activation threshold ensures your cooling system is working at full capacity before peak temperatures are reached.

• Direct fit for factory thermostat housing
• Lower activation temperature for improved cooling efficiency
• Activation Temperature: 165.2°F (Stock: 190.4°F)
• Manufacturer Part Number: MMTS-WRX-15
• Includes Mishimoto Lifetime Warranty

Fits select 1992-2021 Subaru models including WRX, STI, Forester, Legacy, Outback, Baja, and SVX.

The Mishimoto MMTS-WRX-01 Racing Thermostat is engineered to provide significantly lower cooling temperatures compared to the factory unit. By activating at 68°C (154.4°F), this thermostat allows coolant to circulate through the block earlier, helping to manage thermal loads during aggressive driving, track use, or high-ambient temperature conditions. It serves as a direct-fit replacement for the stock thermostat, utilizing a high-quality wax pellet for reliable and consistent temperature regulation.

• Opening Temperature: 68°C (154.4°F)
• Installation: Direct OE replacement
• Design: High-grade wax pellet for consistent operation
• Manufacturer Part Number: MMTS-WRX-01

Fits select 1961-1996 Jeep Wrangler, Alfa Romeo, American Motors, Buick, Cadillac, and Chevrolet models (2.5L / 4.0L / 4.2L).

The Mishimoto Racing Thermostat is an essential cooling system upgrade for drivers looking to maintain lower engine temperatures and improve thermal efficiency. Designed as a direct-fit replacement for the factory unit, this thermostat activates at a lower temperature than standard equipment, allowing coolant to circulate through the radiator earlier in the engine's warm-up cycle. This results in more consistent operating temperatures, which is particularly beneficial in high-performance applications, hot climates, or towing conditions.

• Reduces high engine temperatures for improved reliability and performance
• Lower activation temperature allows for earlier coolant flow
• Durable construction designed for high-stress automotive environments
• Direct replacement for OE thermostats
• Includes the Mishimoto Lifetime Warranty
• Manufacturer Part Number: MMTS-WRA-87L

Fits select 2011-2018 Jeep Wrangler, Grand Cherokee, and Dodge Durango (3.6L).

Keep your engine temperatures under control with the Mishimoto low-temperature thermostat. Designed as a direct-fit upgrade for the Pentastar 3.6L engine, this unit activates at 180°F (82.2°C) compared to the factory 203°F (95°C). By allowing coolant to flow through the system earlier, it helps maintain lower operating temperatures, making it an essential upgrade for vehicles in warm climates or those frequently used for towing and off-roading.

This kit features an upgraded aluminum housing for superior durability over the factory plastic unit and includes a galvanized steel bleeder screw to resist corrosion. Each thermostat is constructed with high-quality wax for consistent and reliable operation. This product is backed by the Mishimoto Lifetime Warranty.

• Opening Temperature: 180°F (82.2°C) vs. Factory 203°F (95°C)
• Direct-fit for the 3.6L Pentastar V6
• Includes upgraded aluminum housing
• Features a galvanized steel bleeder screw
• High-quality wax-actuated design for repeatable performance
• Manufacturer Part Number: MMTS-WRA-12V2
• Mishimoto Lifetime Warranty

Fits select 2011-2018 Dodge Durango, Jeep Grand Cherokee, and Jeep Wrangler / Wrangler JK (3.6L).

Prevent cooling system failure and protect your engine from overheating with the Mishimoto 90-degree thermostat and housing. While factory plastic housings are prone to warping and cracking over time, this Mishimoto unit features a rugged upgraded aluminum housing and a galvanized steel bleeder screw for a superior seal and significantly improved service life.

This thermostat is calibrated to open at 194°F (compared to the 203°F stock temperature), allowing for slightly earlier coolant flow through the radiator while maintaining efficient operating temperatures. Built with high-quality wax for consistent activation and reliability in all climates, this kit is a direct-fit replacement for your worn or leaking OE component.

• Upgraded aluminum housing prevents leaks and resists warping
• Includes galvanized steel bleeder screw for easier maintenance and a tighter seal
• 194°F (90°C) opening temperature for optimal cooling performance
• High-quality wax construction ensures consistent operation
• Mishimoto Lifetime Warranty
• Manufacturer Part Number: MMTS-WRA-12E

Fits select 1993-2011 Chrysler, Dodge, Jeep, Eagle, Mitsubishi, and Mini models (2.4L / 3.8L).

The Mishimoto Racing Thermostat is engineered to improve cooling efficiency and protect your engine from heat soak. Unlike standard units that wait for higher temperatures to engage, this racing thermostat activates earlier, allowing coolant to flow through the system sooner. This proactive cooling approach helps maintain lower operating temperatures, ensuring consistent performance whether you are on the trail in a Wrangler or commuting in a PT Cruiser.

• Promotes earlier coolant flow to stabilize engine temperatures
• Ideal for vehicles operating under high load or in hot climates
• High-quality construction ensures reliable opening and closing cycles
• Replaces the factory thermostat for improved thermal management
• Manufacturer Part Number: MMTS-WRA-03L

Fits select 1959-2009 Audi, Mercedes-Benz, Porsche, and Volkswagen models (including 1.8T and 2.0T engines). This Mishimoto Racing Thermostat is designed to improve cooling efficiency by promoting earlier coolant circulation through the engine block and radiator.

By activating at a lower temperature than standard factory units, this thermostat allows the cooling system to begin heat dissipation sooner. This is critical for maintaining optimal operating temperatures in high-performance or high-stress environments where engine heat soak can lead to power loss or component fatigue. It replaces the worn or high-temperature factory unit and serves as a direct-fit upgrade for the specified vehicle applications.

• Manufacturer Part Number: MMTS-VR6-93L
• Lower activation temperature for earlier coolant flow
• Reduces engine temperatures during spirited or track driving
• Designed for high-heat and performance applications
• Direct replacement for the factory thermostat

Fits select 1997-2009 GM vehicles including the Chevrolet Corvette, Camaro, Silverado, and Tahoe, as well as GMC Sierra, Yukon, and Pontiac G8/GTO models equipped with LS-based V8 engines.

The Mishimoto Racing Thermostat is designed to improve cooling efficiency by significantly reducing high engine temperatures. Unlike standard factory thermostats that wait until the engine is hot to open, this low-temperature unit activates earlier, allowing coolant to flow through the system sooner. This results in a more consistent operating temperature, making it an essential upgrade for high-performance builds, track-driven vehicles, or trucks used for heavy towing.

Engineered as a direct-fit replacement for the stock assembly, the MMTS-VET-97L ensures a precise seal and reliable operation under extreme thermal stress.

• Direct replacement for OE thermostat in LS-based engine applications
• Earlier activation allows for cooler engine operating temperatures
• Ideal for racing, towing, and high-performance street use
• Precision-engineered for a secure, leak-free fit
• Manufacturer Part Number: MMTS-VET-97L

Fits select 2014-2026 Cadillac, Chevrolet, and GMC models including Corvette, Camaro, Silverado, Sierra, Tahoe, Yukon, and Escalade.

The Mishimoto Racing Thermostat is engineered to promote significantly greater cooling efficiency for high-performance and modified engines. This unit replaces the factory thermostat to maintain lower engine temperatures, which helps reduce the risk of overheating and improves the long-term reliability of your vehicle's cooling components.

Once the engine is fully warmed up, the Mishimoto thermostat activates at a lower temperature (180°F) compared to the standard OEM 212°F unit. This earlier opening allows coolant to flow through the engine sooner, effectively maintaining a lower operating temperature for consistent performance under load. It is designed to fit flawlessly into the stock thermostat housing as a direct-fit replacement.

• Lower activation temperature for earlier coolant flow
• Activation Temperature: 180°F (Stock: 212°F)
• Compatible with factory thermostat housing
• Manufacturer Part Number: MMTS-VET-180
• Mishimoto Lifetime Warranty

Fits select 2014-2026 Cadillac, Chevrolet, and GMC vehicles including Camaro, Corvette, Silverado, and Sierra (6.2L).

The Mishimoto MMTS-VET-14 Racing Thermostat is engineered to promote greater cooling efficiency by significantly reducing high engine temperatures. Once the engine is fully warmed up, this thermostat opens at 160°F (71°C) compared to the standard 212°F (100°C) factory unit. This earlier activation allows coolant to flow through the engine sooner, helping to maintain lower operating temperatures and prevent overheating during performance driving or towing.

Designed as a direct-fit replacement for the original equipment (OE) thermostat, this unit is essential for maintaining optimal thermal management in high-performance LT-series engines. Like all Mishimoto products, this thermostat is backed by a Lifetime Warranty for long-term peace of mind.

• Direct fit for select 2014-2026 GM 6.2L engines
• Lower activation temperature: 160°F (71°C) vs. 212°F (100°C) stock
• Promotes earlier coolant flow for improved thermal efficiency
• Includes Mishimoto Lifetime Warranty
• Manufacturer Part Number: MMTS-VET-14

Fits select 2007-2026 Buick, Cadillac, Chevrolet, GMC, and Hummer vehicles including Camaro SS/ZL1, Corvette, Silverado, and Sierra models.

The Mishimoto MMTS-VET-05 Racing Thermostat is designed to improve cooling efficiency by significantly lowering engine operating temperatures. By activating at 169°F—compared to the standard factory 187°F setting—this thermostat allows coolant to flow through the engine earlier. This proactive cooling approach helps prevent heat soak and maintains consistent performance during spirited driving or under heavy towing loads.

• Direct-fit replacement for the factory unit
• Lower activation temperature allows for earlier heat dissipation
• Activation Temperature: 169°F (76°C)
• Stock Activation Temperature: 187°F (86°C)
• Durable construction for long-term reliability in high-heat environments
• Manufacturer Part Number: MMTS-VET-05
• Mishimoto Lifetime Warranty