Thermostat 16031-31011 for Toyota 4RUNNER
1603131011 - Engine parts
Price Details
Dealer Price ≠ Your Price
Official dealer price is only a benchmark. Your LongTop quote is significantly lower.
| Brand | Longtop Supply Quote | Action |
|---|---|---|
| FAW Toyota | $8.89 | Check Better Price |
| GAC Toyota | $9.19 | Check Better Price |
| Imported Toyota | $9.19 | Check Better Price |
| Lexus | $9.19 | Check Better Price |
Replacements
Alternative OE numbers related to this product.
| Brand | Original OE | Replacement OE |
|---|---|---|
| - | 1603131011 | 1603131010 |
Compatible Models
Vehicle models currently mapped to this OE part.
Show all 72 mapped vehicle models
Product Overview
This is a genuine Toyota OEM thermostat, OE 16031-31011, which regulates coolant flow so the engine holds operating temperature. Fits 4RUNNER, COASTER (CHINA), FJ CRUISER, FORTUNER (SUV), HILUX (DOUBLE CAB) and LEXUS GX400/460, built from 1999 to 2024. The listing carries 8 interchangeable numbers, among them THT-003, TH45482G1 and 34051.
Ask for a wholesale quotation with your VIN or OE number; we ship worldwide.
Technical Specifications
| OE Number | 1603131011 |
| Part Name | Thermostat |
| Brand | Toyota |
| Type | Thermostat with Housing |
| Opening Temperature | 82C |
| Length | 150mm |
| Width | 120mm |
| Height | 100mm |
| Material | Aluminum Housing / Stainless Steel Wax Element |
| Weight | 800g |
OE Cross-Reference
| THT-003 | Aisin |
| TH45482G1 | Gates |
| 34051 | Gates |
| ADT39215 | Blue Print |
| ADT39223 | Blue Print |
| TI 242 82 | Mahle |
| 1603131010 | Toyota |
| 160310P010 | Toyota |
Questions and Answers
Which Toyota and Lexus models does 16031-31011 fit?
Genuine Toyota Thermostat 16031-31011 is used on 4RUNNER, COASTER (CHINA), FJ CRUISER, FORTUNER (SUV), HILUX (DOUBLE CAB) and LEXUS GX400/460, built from 1999 to 2024.
Which OEM part numbers interchange with 16031-31011?
8 interchangeable part numbers are listed for 16031-31011, including THT-003 (Aisin), TH45482G1 (Gates), 34051 (Gates), ADT39215 (Blue Print).
What are the dimensions of 16031-31011?
Genuine Toyota Thermostat 16031-31011 measures 150mm long, 120mm wide, and 100mm high. It uses an Aluminum Housing / Stainless Steel Wax Element material.
How many pieces are needed for 16031-31011?
Supplied as one piece per position – check the quantity required for your application.
Is there anything I need to know before installing this part?
Yes. Let the system cool fully before opening it, and refill with the specified coolant.
Is the genuine part worth it compared with an aftermarket equivalent?
The genuine part earns its price in details that matter over time: the number is confirmed against the official Toyota catalog, so the application is exactly right for your chassis; and the part is verified against the OE number before dispatch, so you receive exactly what your chassis requires. These are the aftermarket equivalents you may also see quoted.
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