Water Tank 16400-31B20 for Lexus LS500
1640031B20 - 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 | $233.05 | Check Better Price |
Compatible Models
Vehicle models currently mapped to this OE part.
Product Overview
OE 16400-31B20 is the genuine Lexus OEM water tank that stores coolant as the tank section of the radiator. It is used on LEXUS LS SERIES, LEXUS LS500/500H and LEXUS LS500/500H/350, built from 2017 onwards. 2 cross-reference numbers apply, including 16400-31B21 and 16400-0P280.
Send your VIN or OE number for a wholesale quotation with worldwide export shipping.
Technical Specifications
| OE Number | 1640031B20 |
| Part Name | Water tank |
| Brand | Toyota |
| Position | Front engine compartment |
| Type | Radiator Assembly |
OE Cross-Reference
| 16400-31B21 | TOYOTA |
| 16400-0P280 | TOYOTA |
Questions and Answers
Which Toyota or Lexus vehicles is 16400-31B20 used on?
16400-31B20 covers LEXUS LS SERIES and LEXUS LS500/500H/350, with production years from 2017 onwards. Chassis codes include GSF50, GVF5#, VXFA55, GVF50, VXFA50, VXFA5#.
Which chassis codes does 16400-31B20 cover?
Chassis codes include GSF50, GVF5#, VXFA55, GVF50, VXFA50, VXFA5#.
What part numbers replace 16400-31B20?
Listed on this page are 2 interchangeable numbers for 16400-31B20, among them 16400-31B21 (TOYOTA), 16400-0P280 (TOYOTA).
Where is 16400-31B20 installed on the vehicle?
It is fitted in the Front engine compartment position.
How many pieces are needed for 16400-31B20?
Sold as one piece per position – check the quantity required for your application.
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.
Is 16400-31B20 the same part across different markets?
The Lexus number 16400-31B20 is unified across markets; a different number on another catalog is the superseded version – confirm with our sales team before dispatch.
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