Optima OE Replacement Marine Batteries

Brand: Optima | Part #BAT-1EC18A

Category: Batteries > Marine Batteries

The Optima OE Replacement Marine Batteries (P/N BAT-1EC18A) is a direct-fit Marine Batteries for the vehicles listed in the fitment section. Direct replacement for the failed factory part — no fabrication, splicing, or adapter hardware required. Sourced from Optima, a recognized supplier in the aftermarket auto parts channel. Part number BAT-1EC18A is the manufacturer reference — match it against your old part or VIN-based lookup to confirm you have the right unit. Confirmed fitment on 2011–2016 Chevrolet, BMW, GMC, Subaru including Trailblazer, Tahoe, Malibu, X4, i4, Sierra. 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: $264.99 | In stock — ships within 1-2 business days. Free shipping.

Vehicle Compatibility

Compatible Makes: Chevrolet, BMW, GMC, Subaru

Compatible Models: Trailblazer, Tahoe, Malibu, X4, i4, Sierra, Sierra HD, Impreza, Legacy

Year Range: 2011–2016