ACDelco Expansion Tanks

Brand: ACDelco | Part #CLG-1B5B79

Category: Cooling > Expansion Tanks

The ACDelco Expansion Tanks (P/N CLG-1B5B79) is a direct-fit Expansion Tanks for the vehicles listed in the fitment section. Materials are corrosion-resistant in mixed-metal cooling systems running long-life or HOAT/OAT coolants. Sourced from ACDelco, a recognized supplier in the aftermarket auto parts channel. Part number CLG-1B5B79 is the manufacturer reference — match it against your old part or VIN-based lookup to confirm you have the right unit. Confirmed fitment on 2020–2022 Mercedes-Benz, Kia, BMW, Genesis including A-Class, GLA, Stinger, Carnival, Rio, 4 Series. Use the year/make/model selector above to verify your exact configuration before checkout. Same- or next-business-day handling on in-stock orders. Free US shipping over $75 — no surprise oversized fees on this item. 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: $57.99 | In stock — ships within 1-2 business days. Free shipping on orders over $75.

Vehicle Compatibility

Compatible Makes: Mercedes-Benz, Kia, BMW, Genesis

Compatible Models: A-Class, GLA, Stinger, Carnival, Rio, 4 Series, GV80

Year Range: 2020–2022