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Toyota Hiace / Regiusace Window washer tank cap
Closes off an opening to keep its contents in and dirt out. Genuine Toyota window washer tank cap, part no. 85316-34050 for the Hiace / Regiusace (2020–2026).

Product Overview
The Toyota window washer tank cap (part number 85316-34050) is a genuine OEM component from the windshield nozzle section of the Toyota parts catalog. The catalog notes: “Cap, windshield washer jar”. Compatible vehicles include the Toyota Hiace / Regiusace (2025) with the 2.7L 16-valve DOHC EFI engine. On the catalog diagram it is marked as callout 85332. The catalog specifies a quantity of 1.
Before ordering, compare part number 85316-34050 with the number on your old part. Part numbers can change during a model's production run, so a VIN check is the surest way to get the right one.

Key Features
Seals the opening
Keeps fluid, pressure or refrigerant in and stops dirt and moisture getting in.
Listed fitment
Listed for the Toyota Hiace / Regiusace (2020–2026).
Catalog reference
Listed under windshield nozzle in the Toyota parts catalog as callout 85332, with quantity 1.
Genuine OEM part
Original Toyota part number 85316-34050. Share your VIN and we confirm it fits before you order.
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