Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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Integrated Thermostat Housing Assembly; 180-Degree (03-24 4.0L 4Runner)Find parts that fit my vehicle
Item TR43963
Our Price
$41.99 each
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Product Information
Features, Description, Q&A, Specs & Installation
Features
- High-Grade Stainless Steel, Copper, and Plastic Construction
- Meets Or Exceeds OEM Standards
- Consistent And Precise Mechanical Actuator Response To Cooling System Needs
- Original Equipment Design For Worry-Free Direct Fit Replacement
- 100% Tested And Calibrated
- Seal Material Rubber
- Seal Quantity 1
- Jiggle Pin Included No
- Prop 65 Warning Cancer And Reproductive Harm
- Actuator Type Mechanical
- Outlet Port Outside Diameter 1.38 In (35.05 Mm)
- Bleeder Hole No
- Outlet Port Quantity 1
- Start To Open Temperature 180 Deg. F (82.22 Deg. C)
- Gasket Or Seal Required Yes
- Mounting Hole Quantity 3
- Gasket Or Seal Included Yes
- Mounting Hardware Included No
- Valve Type Disk
- Includes Sensor No
- Material Plastic, Stainless Steel, Copper
- Fits 03-24 4.0L 4Runner
Description
Integrated Thermostat Assembly. The Integrated Thermostat Housing Assembly is engineered to regulate engine temperature by controlling coolant flow through the cooling system. This ensures optimal engine performance, prevents overheating, and maintains efficiency during operation. Its precise mechanical actuator responds consistently to temperature changes, safeguarding the engine under various driving conditions.
Construction and Appearance. Constructed from high-grade stainless steel, copper, and plastic materials, this thermostat assembly provides durability, corrosion resistance, and thermal insulation. The housing’s black plastic finish offers a professional appearance while enhancing reliable operation.
Installation. Installation is straightforward with no drilling required, designed for a direct fit replacement. The unit mounts securely using existing factory mounting holes, but mounting hardware is not included.
Application. This thermostat assembly fits the 4.0L 4Runner from model years 2003 through 2024, serving as a direct OEM replacement part.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Thermostat Housing Assembly
4.0
Reviews of similar Engine Products (9)
Questions & Answers
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Will It Fit My 4Runner
- 40th Anniversary Edition - 23
- Limited - 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
- Nightshade - 20, 21
- Sport - 03, 04, 05, 06, 07, 08, 09
- SR5 - 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
- SR5 Premium - 18, 19, 20, 21, 22, 23, 24
- Trail - 10, 11, 12, 13, 14, 15, 16, 21, 22
- TRD Off-Road - 17, 18, 19, 20, 21, 22, 23, 24
- TRD Off-Road Premium - 18, 19, 20, 21, 22, 23, 24
- TRD Pro - 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
- TRD Sport - 22, 23, 24
- Venture - 20, 21
