Mercury & Mariner 4-Stroke Outboard Base Gaskets

Discover premium Mercury and Mariner 4‑Stroke Base Gaskets. These gaskets provide a secure seal between the outboard engine’s short block and the lower crankcase, ensuring optimal mechanical integrity and leak prevention. Tailored for Mercury and Mariner 4-stroke short blocks, our selection ensures compatibility, durability, and optimal performance. OBParts supports a wide range of internal powerhead parts, including base gaskets, gasket kits, head gaskets, bolts, and other related components. Whether you're maintaining or rebuilding your engine, rely on OBParts for accurate fitment and dependable delivery.