ACDelco Premium Radiator Caps

Brand: ACDelco | Part #CLG-646955

Category: Cooling > Radiator Caps

The ACDelco Premium Radiator Caps (P/N CLG-646955) is a direct-fit Radiator Caps for the vehicles listed in the fitment section. Coolant flow rate matches OE pump output, so cabin heat and engine operating temperature behave as expected from day one. Sourced from ACDelco, a recognized supplier in the aftermarket auto parts channel. Part number CLG-646955 is the manufacturer reference — match it against your old part or VIN-based lookup to confirm you have the right unit. Confirmed fitment on 2018–2021 Cadillac, Genesis, Chevrolet including CT4, XT6, XT5, G70, GV80, Malibu. Use the year/make/model selector above to verify your exact configuration before checkout. In-stock items leave the warehouse within one business day. Free shipping over $75; ground delivery is 3–7 business days nationwide. 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: $255.99 | In stock — ships within 1-2 business days. Free shipping.