Illustrative photo

Available as

Genuine (OEM)
New original part from the vehicle maker
  • Toyota Genuine
    Maker's part number16100-39595
    40.6 USD
Aftermarket
New part from an independent brand

Equivalent parts from other brands, each shown with that brand's own part number. The expert confirms the fit for your car.

  • Aisin
    Aisin part numberWPT203V
    43.3 USD
  • Brand confirmed on quote
    43.6 USD
  • GMB
    GMB part numberGWT163A
    49.1 USD
  • GMB
    GMB part numberGWT163AJ
    50.7 USD

Reference prices as of Oct 18, 2026.

Part numbers

The maker's number, and the numbers other brands give their equivalent of this part. You can search by any of them.

OEMLexus16100-39595InterchangeGWT-163AEquivalentAisinWPT203VEquivalentGMBGWT163AJ

Fits these vehicles

Variants differ by market, trim and year: send your VIN with the request and the expert matches the exact part.

About this part

Water pump for the Lexus NX AZ10 (2015–2021) — part of the engine cooling system. Listed fitment: Lexus NX AZ10 (2015–2021); Lexus RX AL20 (2016–2022). Part number 16100-39595.

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