Rain-X OE Replacement Windshield Washer Fluid

Brand: Rain-X | Part #OIL-31D403

Category: Oil & Fluids > Windshield Washer Fluid

The Rain-X OE Replacement Windshield Washer Fluid (P/N OIL-31D403) is a direct-fit Windshield Washer Fluid for the vehicles listed in the fitment section. Formulated to meet current OEM service-fill specifications, with a stable viscosity profile across cold-start and hot operating ranges. Sourced from Rain-X, a recognized supplier in the aftermarket auto parts channel. Part number OIL-31D403 is the manufacturer reference — match it against your old part or VIN-based lookup to confirm you have the right unit. Confirmed fitment on 2005–2025 Kia, BMW, Mercedes-Benz, Genesis including Forte, 3 Series, S-Class, GLA, G70. Use the year/make/model selector above to verify your exact configuration before checkout. Ships from a US warehouse in 1–2 business days. Free shipping on orders $75+, flat-rate ground otherwise. Backed by a 90-day return window — if the part doesn't fit or the wrong unit was shipped, send it back for a full refund.

Price: $27.99 | In stock — ships within 1-2 business days. Free shipping on orders over $75.