Engine Coolant Thermostat Housing and Water Inlet Pipe Assembly 16031-31011 for Toyota Land Cruiser Prado 120 FJ Cruiser Hilux 4Runner
$5.45
Shop the 16031-31011 Thermostat and Water Inlet Pipe Assembly for Toyota Prado 120, FJ Cruiser, and Hilux. High-quality direct replacement for reliable cooling.
500 in stock
Description
Key Selling Points
- Vehicle Compatibility: Specifically designed for Toyota Land Cruiser Prado GRJ120, FJ Cruiser, Hilux, and 4Runner models equipped with compatible V6 engines.
- Comprehensive Assembly: Includes both the thermostat and the water inlet pipe housing, a complete solution to address cooling system leaks and overheating issues.
- Direct OE Replacement: Replaces OEM part numbers 16031-31011 and 16031-31010 for a perfect factory fit and restored engine temperature regulation.
- Durable Construction: Engineered with high-strength materials to withstand extreme temperature fluctuations and resist corrosion in harsh engine environments.
- Critical Performance: Ensures optimal coolant flow and maintains the engine at its ideal operating temperature, preventing premature wear and improving fuel efficiency.
Technical Specifications
| Part Number | 16031-31011, 16031-31010 |
|---|---|
| Placement on Vehicle | Front / Cooling System |
| Component Type | Thermostat & Water Inlet Assembly |
| Fitment Style | Direct Replacement |
| Compatible Engine | Toyota 1GR-FE V6 |
FAQ Q&A
Q: Does this assembly include the internal thermostat or just the housing?
A: This is a complete assembly that includes both the thermostat internal unit and the water inlet housing for a streamlined installation process.
Q: Can I use this for a V8 Toyota Land Cruiser?
A: No, this part is specifically calibrated for Toyota V6 models like the Prado GRJ120 and FJ Cruiser with the 16031-31011 part number specification.
Q: How do I know if my thermostat housing needs replacement?
A: Common signs include coolant leaks near the water inlet, erratic engine temperature readings, or the engine taking too long to reach operating temperature.






Additional information
| Weight | 1.19 kg |
|---|---|
| Dimensions | 22 × 18 × 15 cm |
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