Sierra Marine – OEM-Replacement Marine Engine Parts & Accessories

Sierra Marine is the marine industry's most trusted source for OEM-replacement engine parts, filters, impellers, thermostats, and maintenance components. With coverage for virtually every major marine engine brand, Sierra makes it easy to find the right part for your outboard, sterndrive, or inboard engine — at a fraction of the OEM price.

Why Boaters & Technicians Choose Sierra

• Broadest engine parts coverage – Replacement parts for Mercury, Yamaha, Johnson, Evinrude, OMC, Volvo Penta, MerCruiser, and more
• OEM-equivalent quality – Parts engineered to meet or exceed original manufacturer specifications for fit, form, and function
• Complete maintenance lineup – Fuel filters, oil filters, water pump impellers, thermostats, spark plugs, belts, and tune-up kits
• Trusted by marine service professionals – The go-to brand for marine technicians performing routine maintenance and engine repairs

Popular Sierra Marine Products

Browse Sierra water pump impellers, fuel filters, oil filters, thermostats, spark plugs, tune-up kits, and marine engine parts at LMC Shop.