Thermostat 16031-31031 for Toyota ALPHARD
1603131031 - 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 | $11.48 | Check Better Price |
| GAC Toyota | $11.48 | Check Better Price |
| Imported Toyota | $11.48 | Check Better Price |
Replacements
Alternative OE numbers related to this product.
| Brand | Original OE | Replacement OE |
|---|---|---|
| - | 1603131031 | 1603131030 |
Compatible Models
Vehicle models currently mapped to this OE part.
Show all 33 mapped vehicle models
Product Overview
This is a genuine Toyota OEM thermostat, OE 16031-31031, which regulates coolant flow so the engine holds operating temperature. It fits ALPHARD/VELLFIRE/HV, ALPHARD/VELLFIRE/HYBRID, 250 (NAP), LEXUS ES350/300H, LEXUS ES350/300H/260/250/200 and LEXUS LM350/LM300H, built from 2010 to 2020. 3 interchangeable part numbers are listed, including 1049-87, 1049-87K and 16031-31030.
Ask for a wholesale quotation with your VIN or OE number; we ship worldwide.
Technical Specifications
| OE Number | 1603131031 |
| Part Name | Thermostat |
| Brand | Toyota |
| Type | Thermostat with Housing |
| Opening Temperature | 87C |
| Weight | 203.8g |
OE Cross-Reference
| 1049-87 | MOTORAD |
| 1049-87K | MOTORAD |
| 16031-31030 | Toyota |
Questions and Answers
Which Toyota or Lexus models and years does 16031-31031 cover?
16031-31031 fits ALPHARD/VELLFIRE/HV, 250 (NAP), LEXUS ES350/300H/260/250/200 and LEXUS LM350/LM300H, built from 2010 to 2020.
What is the cross-reference for 16031-31031?
3 numbers interchange with 16031-31031, including 1049-87 (MOTORAD), 1049-87K (MOTORAD), 16031-31030 (Toyota).
How many pieces are needed for 16031-31031?
You get one piece per position – check the quantity required for your application.
Is there anything I need to know before installing this part?
Worth knowing first: 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 differs in ways that show up in service: 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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