Water Inlet Sub-assy, W/Thermostat

16031-31091

Current PNC 16031 General

Fitment

Codes the factory prints against this line. Hover for the catalogue's own expansion.

8GRFKS 3500CC 24-Valve Dohc GSF50 GCC Gulf Corporation Council

Fits: Lexus LS500/500H/350 GSF50,GVF50,VXFA50
Valid: 2020-10 → —
Model period: 819W
Destination †: 01
Catalogue page †

† Read from the record layout but confirmed by no published legend.

Shown on

Figure 166793E Figure 166795C Figure 166796B

Interchangeable numbers

Number	Alternative	Effective
16031-31090	16031-31091	2020-12

Other lines in this group

Part number	Period	Status
16031-31080	2017-10 → 2020-10	Superseded / ended 2020-10
16031-31090	2017-10 → 2019-10	Superseded / ended 2019-10
16031-31091	2019-11 → 2020-10	Superseded / ended 2020-10
16031-31080	2020-10 → —	Current
16031-31091	2020-10 → 2025-09	Superseded / ended 2025-09

List price

Not priced in this market.

Only the Japanese dataset ships a price file. Add the part to an enquiry to ask a seller for a quote.

This number everywhere

Every vehicle in every market that takes 16031-31091.

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No quantity, deliberately

The factory catalogue records which parts a vehicle takes, never how many. Quantity was always typed in by the parts counter when raising an order, so nothing here can tell you whether you need one or four.