Menu

We independently review everything we recommend. When you buy through our links, we may earn a commission at no additional cost to you. Learn more ›

AISIN

AISIN is a trusted manufacturer of premium automotive replacement parts, specializing in engine cooling components like thermostats for Toyota, Lexus, and other Japanese vehicles.

17 products Updated June 23, 2026

AISIN Products (17)

1
Prime

AISIN THT-011 OE Engine Coolant Thermostat for Lexus GS300 IS300 SC300, Toyota Prius Tacoma Yaris, Scion xA xB - Reliable Replacement

AISIN
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Superior OE-matched design ensures precise fit and function
  • High-quality construction promotes extended service life
  • Correct operating temperature maintains engine efficiency
  • Proven performance in demanding automotive applications
  • Broad compatibility across popular Lexus, Scion, and Toyota models

Cons

  • Gasket not included, requiring separate purchase
  • Fitment varies by engine - verify specifics before buying
  • Limited to select model years and variants
2
Prime

AISIN FNT-014 OE Engine Cooling Fan Blade for Lexus GX470 & Toyota 4Runner Sequoia Tundra 2005-09

AISIN
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Exact OE match for seamless installation and performance
  • High-quality construction promotes long-term dependability
  • Efficient airflow keeps engine at ideal temperatures
  • Proven compatibility with popular Lexus and Toyota SUVs/Trucks

Cons

  • Installation hardware not included
  • Fitment depends on specific engine - verify before purchase
3
Prime

AISIN FNT-005 OE Engine Cooling Fan Blade for Toyota 4Runner, Tacoma, Tundra, T100 - Exact Fit Replacement

AISIN
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Perfect OE match for easy installation and reliable performance
  • High-quality construction for extended durability
  • Efficient cooling keeps engine at specified temperatures
  • Compatible with multiple Toyota models including 4Runner and Tacoma

Cons

  • Installation hardware not included
  • Requires verifying exact vehicle compatibility
  • Professional installation recommended for best results
4
Prime

AISIN BTH-001 OEM Hydraulic Timing Belt Tensioner for Acura MDX, Honda Accord Pilot Odyssey - Genuine OE Fit

AISIN
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Exact OE replacement for seamless bolt-on installation
  • Advanced hydraulic damping minimizes wear and noise
  • Robust die-cast aluminum withstands extreme conditions
  • Proven reliability from original equipment manufacturer
  • Enhances overall timing system longevity

Cons

  • Fitment depends on specific engine type, requires verification
  • Replacement typically involves significant engine disassembly
  • Limited to select Acura, Honda, and Saturn models only
5
Prime

AISIN THT-003 OE Engine Coolant Thermostat with Housing & Gasket for Toyota 4Runner, Tacoma, Tundra, FJ Cruiser

AISIN
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Superior OE-matched quality ensures reliable performance
  • Complete kit with housing and gasket saves time and cost
  • Correct temperature specs maintain engine health
  • Broad compatibility with popular Toyota trucks and SUVs
  • High customer ratings for fit and dependability

Cons

  • Fitment depends on specific engine type—verify compatibility
  • Installation may require basic mechanical tools
  • Limited to select Toyota models only
6
Prime

AISIN CRT-014 OE Clutch Slave Cylinder for Toyota 4Runner Tacoma Tundra - Precision Engineered Replacement

AISIN
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Perfect vehicle-specific fit for Toyota 4Runner, Tacoma, Tundra
  • High-quality materials resist wear and corrosion
  • Engineered for reliable, smooth clutch performance
  • Easy no-hassle replacement
  • Proven OE standards for peace of mind

Cons

  • Fitment requires verification for specific engine/transmission
  • Professional installation recommended for optimal results
7
Prime

AISIN CRT-029 OE Clutch Slave Cylinder for Toyota 4Runner & Tacoma - Precision OE-Matched Replacement

AISIN
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Manufactured to strict OE standards for perfect vehicle integration
  • Advanced plating prevents galling and boosts long-term reliability
  • Heat-resistant seals eliminate leaks for sustained performance
  • Enhances clutch feel with rapid response to pedal input
  • Backed by AISIN's decades of automotive expertise

Cons

  • Fitment requires verification for specific engine and transmission types
  • Installation may need mechanical tools and basic expertise
8
Prime

AISIN CRT-001 OE Clutch Slave Cylinder for Toyota 4Runner & Pickup 1981-1991 - Precision Engineered Replacement

AISIN
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Precision-manufactured to OE standards for perfect compatibility
  • Enhanced corrosion resistance ensures extended service life
  • Smooth piston movement improves clutch feel and responsiveness
  • High-quality materials prevent leaks and maintain performance
  • Proven engineering from AISIN's OE automotive expertise

Cons

  • Fitment requires verification for specific engine and transmission
  • Limited compatibility to select older Toyota 4Runner and Pickup models
9
Prime

AISIN THT-015 OE Engine Coolant Thermostat for Lexus GS400/GS430/GX470 & Toyota 4Runner/Tundra/Sequoia

AISIN
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Superior OE-matched quality for dependable performance
  • High customer ratings confirm reliability in real-world use
  • Correct operating temperature matches factory specs
  • Efficient design promotes consistent engine cooling
  • Easy integration into existing cooling systems

Cons

  • Gasket not included, requiring separate purchase
  • Fitment depends on specific engine; verification recommended
10
Prime

AISIN CMT-030 OE Clutch Master Cylinder for Toyota T100 & Tacoma - Durable, Perfect Fit Replacement

AISIN
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Perfect OE-matched fit for hassle-free replacement
  • Superior corrosion and wear resistance
  • Smooth, responsive clutch operation
  • Long-lasting seals enhance reliability
  • High customer satisfaction from real-world use

Cons

  • Fitment requires verification for specific engine/transmission combos
  • Best installed by professionals for optimal results
  • Limited to select Toyota T100 and Tacoma models only
11
Prime

AISIN THM-011 Engine Coolant Thermostat with Gasket - OE Fit for Infiniti FX45 FX50, Nissan Titan Armada, Mitsubishi Outlander

AISIN
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Superior OE technology for perfect compatibility
  • High-quality construction promotes long service life
  • Gasket included for complete, hassle-free kit
  • Correct temperature specs maintain engine efficiency
  • Strong customer ratings for dependable results

Cons

  • Fitment varies by engine type; verify specifics first
  • Limited to select Infiniti, Nissan, and Mitsubishi models
12
Prime

AISIN CMT-093 OE Clutch Master Cylinder for Toyota 4Runner 1996-2000 - Precision Engineered Replacement

AISIN
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Exact OE form, fit, and function for seamless replacement
  • Superior surface treatments resist galling and corrosion
  • Responsive design enhances clutch feel and consistency
  • Long-life seals minimize maintenance needs

Cons

  • Fitment requires verification for specific engines/transmissions
  • Best installed by professionals for optimal performance
  • Limited to 1996-2000 Toyota 4Runner models
13
Prime

AISIN TKT-021 Timing Belt Kit with Water Pump for Lexus GS400 GS430 GX470 LS400 & Toyota 4Runner Tundra - OE Matched

AISIN
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Premium OE-quality parts from Mitsuboshi, NTN, Koyo, and NSK
  • All-in-one kit reduces downtime and future service needs
  • Enhanced durability with diecast aluminum housing and ceramic seals
  • Easy verification of fitment for select Lexus and Toyota models
  • Includes all necessary hardware for a proper job

Cons

  • Fitment depends on specific engine - always verify compatibility
  • Requires skilled labor for installation due to engine access
  • Limited to select Lexus and Toyota models only
14
Prime

AISIN THF-003 OE Engine Coolant Thermostat with Gasket for Saab 9-2X & Subaru Forester, Impreza, Outback, Legacy

AISIN
9.7
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • OE-spec operating temperature ensures precise cooling
  • High-quality construction promotes long service life
  • Gasket included simplifies installation
  • Broad compatibility with popular Subaru and Saab models
  • Consistent 4.5-star customer ratings reflect real-world reliability

Cons

  • Fitment depends on specific engine type, so verify compatibility
  • Professional installation recommended for best results
  • Limited to select older Saab and Subaru models
15

AISIN FNT-003 OE Engine Cooling Fan Blade for Toyota 4Runner, Celica, Land Cruiser, Pickup - Exact Fit White

AISIN
9.7
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Superior OE technology ensures precise fit and performance
  • High-quality construction promotes long-term reliability
  • Efficient design delivers consistent cooling under tough conditions
  • Compatible with multiple classic Toyota models
  • Restores factory operating temperatures effectively

Cons

  • Installation hardware not included
  • Fitment may vary by engine - verify compatibility
  • Limited to specific older Toyota vehicle models
16
Prime

AISIN THT-023 OE Engine Coolant Thermostat & Housing for Toyota Camry - Perfect Fit, Reliable Performance

AISIN
9.7
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • OE-matched design guarantees precise compatibility and performance
  • High-quality construction promotes long-term cooling system reliability
  • Correct temperature specs maintain engine efficiency
  • Housing included simplifies replacement process

Cons

  • Fitment varies by engine type - verify specifics before purchase
  • Limited to select Toyota Camry models only
17
Pros & Cons

Pros

  • Broad compatibility across multiple Honda and Acura 3.5L/3.7L models
  • High-quality construction backed by AISIN's 1965 automotive expertise
  • Prefilled oil and included tools speed up replacement process
  • Exact specs like 10PA17 type and 5.19" pulley diameter for reliable fit

Cons

  • Requires retaining original low-pressure tube converter during install
  • Mounting position must shift from upward to downward
  • Specific PAG 100 oil type demands careful handling to avoid mismatches

AISIN Brand Guide

AISIN has built a strong reputation in the automotive aftermarket for producing reliable engine cooling and climate control parts. Specializing in thermostats, the brand offers precision-engineered solutions compatible with a wide range of popular vehicles, particularly from Japanese manufacturers like Toyota and Lexus. Whether you're maintaining a daily driver or restoring a classic, AISIN products deliver the durability and performance drivers demand.

Brand Overview

AISIN focuses on high-quality replacement parts that meet or exceed original equipment standards. Their thermostats play a critical role in regulating engine temperature, preventing overheating and ensuring optimal fuel efficiency. With compatibility spanning models from 4Runner and Tacoma to GS300 and Prius, AISIN caters to enthusiasts and everyday mechanics alike. The brand's commitment to engineering excellence makes it a go-to choice for those seeking long-lasting repairs.

What Makes AISIN Thermostats Stand Out

AISIN thermostats are engineered for precise operation, featuring robust construction that withstands extreme temperatures and vibrations. Many models include integrated housings and gaskets for easier installation, reducing labor time and potential leaks. This design minimizes downtime and restores factory-like performance. Drivers appreciate the brand's attention to detail, which translates to fewer repeat repairs and better overall engine health.

  • Superior materials for corrosion resistance and longevity
  • Exact-fit compatibility with OEM specifications
  • Options with or without housing for versatile applications
  • Proven reliability across diverse vehicle lineups

Product Quality and Reputation

Known for rigorous testing, AISIN parts undergo stringent quality controls to ensure they perform under real-world conditions. Mechanics and DIYers alike trust the brand for its consistent performance and value. In the realm of thermostats, AISIN stands tall by prioritizing functionality over gimmicks, helping vehicles run cooler and more efficiently.

For those tackling engine cooling issues, AISIN offers assemblies that simplify the replacement process. These components are ideal for addressing common symptoms like fluctuating temperatures or poor heater performance. The brand's products are particularly favored in high-mileage vehicles where reliability is paramount.

Who Are AISIN Products Best For?

AISIN shines for owners of Toyota, Lexus, Scion, and select other imports. If you're working on trucks like the Tacoma or Tundra, SUVs such as the 4Runner or Land Cruiser, or sedans including Camry and GS models, AISIN provides tailored solutions. Professional shops and home garages benefit from the straightforward installation and dependable results.

Explore more options in our Thermostats category to find the perfect match for your ride. Whether upgrading from a failing stock part or performing preventative maintenance, AISIN delivers peace of mind on the road.

Key Product Categories

AISIN's lineup centers on engine coolant thermostats, available as standalone units, kits with gaskets, or complete housing assemblies. These cover everything from compact cars like Yaris and Echo to luxury models like LS430 and Q70. By focusing on thermostats for engine cooling & climate control, the brand ensures comprehensive coverage for critical systems.

Drivers dealing with overheating or inefficient cooling will find AISIN's offerings restore proper flow and temperature management. Pairing these with routine maintenance extends engine life and improves drivability.

Frequently Asked Questions

What types of vehicles are compatible with AISIN thermostats?

AISIN thermostats fit a broad selection of Toyota, Lexus, Scion, Infiniti, Nissan, Subaru, and other models, including trucks, SUVs, and sedans. Always check specific part numbers for your vehicle.

Do AISIN thermostats come with installation hardware?

Many AISIN models include gaskets or full housings, making installation straightforward. Verify the product details for included components.

How do AISIN thermostats compare to OEM parts?

AISIN parts are designed to match or exceed OEM specifications in fit, function, and durability, offering a reliable aftermarket alternative.

Are AISIN products suitable for high-performance applications?

Yes, their robust construction handles demanding conditions, making them suitable for daily drivers and modified vehicles alike.

Where can I find more thermostat options from AISIN?

Browse our extensive Thermostats selection featuring all six AISIN products for detailed compatibility and reviews.