Radiator Cap 16401-31680 for Toyota Mark X
1640131680 - 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 | $5.54 | Check Better Price |
| GAC Toyota | $6.11 | Check Better Price |
| Imported Toyota | $5.81 | Check Better Price |
| Lexus | $6.38 | Check Better Price |
Compatible Models
Vehicle models currently mapped to this OE part.
Show all 28 mapped vehicle models
Product Overview
This is a genuine Toyota OEM radiator cap, OE 16401-31680, which closes the radiator tank or coolant reservoir. Fits LEXUS GS SERIES, LEXUS GS30/35/43/460, LEXUS GS450H, LEXUS GS460/430/350, LEXUS IS250/300 and LEXUS IS250/350, built from 2005 to 2015. The listing carries 4 interchangeable numbers, among them ADH29902, 16401-31650 and 16401-31520.
Send your OE number or VIN for a wholesale quotation and worldwide shipping.
Technical Specifications
| OE Number | 1640131680 |
| Part Name | Radiator cap |
| Brand | Toyota |
| Position | Radiator (filler neck) |
| Type | Radiator cap (cap sub-assembly radiator) |
OE Cross-Reference
| ADH29902 | Blue Print |
| 16401-31650 | Toyota |
| 16401-31520 | Toyota |
| RC134 | GATES |
Questions and Answers
Which Toyota or Lexus vehicles is 16401-31680 used on?
16401-31680 covers LEXUS GS SERIES, LEXUS GS30/35/43/460, LEXUS GS450H, LEXUS GS460/430/350, LEXUS IS250/300 and LEXUS IS250/350, with production years 2005 to 2015.
What part numbers replace 16401-31680?
Listed on this page are 4 interchangeable numbers for 16401-31680, among them ADH29902 (Blue Print), 16401-31650 (Toyota), 16401-31520 (Toyota), RC134 (GATES).
Is 16401-31680 a front or rear part?
This part is listed for the Radiator (filler neck) position.
How many pieces are needed for 16401-31680?
Sold as one piece per position – check the quantity required for your application.
Is the genuine part worth it compared with an aftermarket equivalent?
What the genuine item buys you is concrete: the part is verified against the OE number before dispatch, so you receive exactly what your chassis requires; and the number is confirmed against the official Toyota catalog, so the application is exactly right for your chassis. These are the aftermarket equivalents you may also see quoted.
What documentation comes with an order?
Each order can ship with the commercial invoice, the packing list and, on request, a Certificate of Origin; the part number is printed on the body or cast into the housing, so you can match it against the invoice.
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