Engineered Marine Products Gaskets & Seals

Precision Sealing from a Trusted Marine Aftermarket Leader

When it comes to keeping your outboard, inboard, or sterndrive running leak-free on the water, few details matter more than the quality of your gaskets and seals. Engineered Marine Products (EMP) has built a reputation over more than 40 years as a reliable source for OEM-quality marine engine service parts, and their Gaskets & Seals lineup reflects that same commitment to fit, function, and durability.

What EMP Offers in Gaskets & Seals

EMP's gasket and seal products are engineered specifically for the demands of marine propulsion systems. Their catalog includes drain gaskets and O-rings designed to serve a wide range of popular engine families and configurations. On the drain gasket side, EMP offers parts compatible with Mercury Mariner outboard gearcases, drain screws, jet drive housings, and hydraulic pump assemblies. MerCruiser owners will find coverage spanning 4-cylinder, 6-cylinder, and V8 powerheads across a broad range of sterndrive families — including the R/MR/Alpha One, Alpha One Gen II, Bravo, and more. Force outboard owners from single-cylinder recreational motors all the way up to 5-cylinder 150 Hp applications are similarly covered. On the O-ring side, EMP addresses BRP (Evinrude/Johnson) outboards ranging from 2-cylinder 18–35 Hp entry-level motors through V6 150–235 Hp performance applications, as well as Mercury Mariner V6 135–200 Hp outboards.

This breadth of fitment coverage is a hallmark of EMP's approach. As both an OEM and aftermarket supplier, EMP designs its sealing components to meet or exceed the original manufacturer's specifications — so boaters and marine technicians can confidently replace worn or damaged seals without sacrificing performance or risking fluid leaks in critical gearcase and drive assemblies.

Why Gaskets & Seals Matter in Marine Engines

Gaskets and seals are the unsung heroes of any marine drivetrain. In a gearcase or sterndrive, they prevent water intrusion and gear lube loss — two failure modes that can cause catastrophic damage if left unchecked. Drain gaskets, though small, form a critical barrier at the gear lube drain and fill points of outboard and sterndrive gearcases. O-rings throughout the powerhead, fuel system, and drive unit keep fluids where they belong and contaminants out. Using quality replacement parts with the correct material properties and dimensional tolerances is essential for a lasting, reliable seal in a saltwater or freshwater environment alike.

The EMP Advantage

With over four decades in the marine parts industry and a catalog spanning engines, fuel systems, cooling, electrical, and drivetrain components, EMP brings deep engineering expertise to even its smallest parts. Their sealing products are purpose-built for the marine environment — engineered to resist the rigors of temperature cycling, vibration, and fluid exposure that define life on the water. Whether you are a DIY boater performing a seasonal gear lube service or a professional marine technician rebuilding a sterndrive, EMP gaskets and seals deliver a dependable, cost-effective solution backed by a brand that the marine service industry has trusted for generations.