Radiator Reservoir Cap 16405-31100 for Lexus RX Series
1640531100 - 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 |
|---|---|---|
| Lexus | $4.22 | Check Better Price |
Compatible Models
Vehicle models currently mapped to this OE part.
Product Overview
The genuine Lexus water tank make-up kettle cover, OE 16405-31100, closes the reservoir and holds pressure in it. Fits LEXUS RX SERIES, LEXUS RX450H/350, LEXUS RX450HL and LEXUS RX450HL/350L, built from 2015 to 2017. The listing carries one interchangeable number: 16405-0P140.
Send your OE number or VIN for a wholesale quotation and worldwide shipping.
Technical Specifications
| OE Number | 1640531100 |
| Part Name | Water tank make-up kettle cover |
| Brand | Toyota |
| Position | Reserve tank (coolant overflow reservoir) |
| Type | Coolant reserve tank cap |
OE Cross-Reference
| 16405-0P140 | Toyota |
Questions and Answers
Which Toyota or Lexus vehicles is 16405-31100 used on?
16405-31100 covers LEXUS RX SERIES, LEXUS RX450H/350 and LEXUS RX450HL/350L, with production years 2015 to 2017. Chassis codes include AGL2#, GGL2#, GYL25, GGL25, GYL2#, GYL26, GGL26.
Which chassis codes does 16405-31100 cover?
Chassis codes include AGL2#, GGL2#, GYL25, GGL25, GYL2#, GYL26, GGL26.
What part numbers replace 16405-31100?
Listed on this page are 1 interchangeable numbers for 16405-31100, among them 16405-0P140 (Toyota).
How can I verify that 16405-31100 is a genuine Toyota part?
A genuine Water Tank Make-Up Kettle Cover shows the Toyota number 16405-31100 on the box label with the country-of-origin marking. On the part itself, parts produced in Japan show MADE IN JAPAN on the part-number label, and current Japanese packaging carries a faint 5% screen on every other Genuine Parts logo; and the component also carries the OE supplier’s name next to Toyota’s, for example DENSO, AISIN, NSK or KYB. Documentation is available on request – commercial invoice, packing list and Certificate of Origin.
Is 16405-31100 a front or rear part?
This part is listed for the Reserve tank (coolant overflow reservoir) position.
How many pieces are needed for 16405-31100?
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 stamped, cast or printed on the part itself, so you can match it against the invoice.
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