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Engineered Marine Products 26-03807 Upper Gearcase Seal Kit for MerCruiser Alpha Gen II

Manufacturer

Engineered Marine Products

<h3>About Engineered Marine Products (EMP)</h3><p><strong>Engineered Marine Products</strong>, widely known in the boating world as <strong>EMP</strong>, has been a trusted name in marine parts manufacturing for over 40 years. The company supplies OEMs, distributors, dealers, and rebuilders worldwide with high-quality aftermarket components engineered to meet or exceed original equipment manufacturer (OEM) specifications. Whether you maintain a weekend fishing boat or a performance inboard, EMP&apos;s extensive catalog is built to keep marine engines running reliably season after season.</p><h3>A Marine Parts Specialist Built on Engineering Precision</h3><p>EMP&apos;s foundation is precision manufacturing. Their design and production processes leverage modern engineering technology, with a focus on dimensional accuracy, material quality, and long-term durability in the demanding marine environment. Salt spray, constant vibration, wide temperature swings, and moisture ingress are realities every marine component must survive — and EMP engineers its parts with exactly those conditions in mind.</p><p>The brand&apos;s catalog spans a remarkably wide range of marine engine subsystems. From cooling and fuel delivery to gearcases, propellers, transom components, and steering systems, EMP offers solutions for outboard engines from manufacturers including Mercury/Mariner, Yamaha, BRP (Johnson/Evinrude), and Force, as well as inboard/sterndrive platforms such as MerCruiser, OMC, and Volvo Penta.</p><h3>Ignition and Electrical Components</h3><p>One of EMP&apos;s most comprehensive product areas is marine ignition and electrical systems. Their <a href="/13199-engineered-marine-products-ignition-control-module-10488">Ignition Control Modules</a> and related ignition components cover a broad spectrum of inboard and outboard applications — from distributor caps and rotors for Volvo Penta V8 engines to ignition coil assemblies compatible with MerCruiser 3.0L through 8.4L GM-based powerplants and OMC configurations. Reliable spark delivery is critical to engine performance and starting consistency on the water, and EMP&apos;s ignition lineup is designed to deliver dependable output across the entire RPM range.</p><h3>Gaskets, Seals, and Engine Integrity</h3><p>Keeping a marine engine leak-free is just as important as keeping it firing correctly. EMP&apos;s <a href="/13199-engineered-marine-products-gaskets-seals-201268">Gaskets &amp; Seals</a> lineup addresses the full range of engine and gearcase sealing needs — including gearcase seal kits, Teflon lip seals, fuel injector crush ring kits, and comprehensive engine gasket sets. Proper sealing prevents water intrusion, oil loss, and exhaust leaks that can quickly sideline a boat and lead to expensive engine damage.</p><h3>Why Boaters and Technicians Choose EMP</h3><ul style="list-style:disc"><li><strong>OEM-Grade Quality:</strong> Parts are engineered to meet or exceed original manufacturer specifications, ensuring proper fit and reliable function.</li><li><strong>Broad Application Coverage:</strong> EMP covers major outboard and inboard/sterndrive platforms from leading marine engine brands.</li><li><strong>Trusted Supply Chain:</strong> EMP products are sold through OEMs, distributors, and dealers globally, reflecting deep industry confidence in the brand.</li><li><strong>40+ Years of Manufacturing Heritage:</strong> Decades of marine-specific engineering experience inform every product in the EMP lineup.</li></ul><p>For boat owners, marine technicians, and engine rebuilders who demand components they can count on, Engineered Marine Products delivers the quality and application coverage to get the job done right.</p>

Part Number

26-03807
09/12/2036 11:48 AM
Sale Price

$28.66

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Engineered Marine Products 26-03807 Upper Gearcase Seal Kit is specifically designed for MerCruiser Alpha One Generation II sterndrives manufactured in 1991 and later. This comprehensive seal kit provides all the essential gaskets, O-rings, and seals needed to properly service and reseal the upper gearcase assembly during sterndrive maintenance or rebuild.

Key Features:

  • Complete upper gearcase seal kit for Alpha Gen II outdrives
  • Fits 1991 and newer Alpha One Generation II units
  • Includes all necessary seals, gaskets, and O-rings for upper housing service
  • Direct replacement for MerCruiser OEM part number 26-88397A1 and Sierra 18-2644
  • Quality aftermarket components designed for reliable sealing performance

This seal kit is essential for preventing gear oil leaks and maintaining proper lubrication in the upper gearcase. Recommended for use during routine sterndrive maintenance, upper unit rebuilds, or when addressing seal leakage issues. For best results, use with appropriate marine gasket sealant compound during installation.

It was great.

The quantity of the item is in question as the listing shows a quantity of 100 and I have ordered 10. Does this mean 1000 bolts are shipping or 10?

sdvSD

Quick and easy

My name was mispelled on order confirmation but spelled correctly when autoplicity wants me to rate their site, wierd.

Everything was simple and I like the different payment options provided.

nice

Very easy

Great Buy

fast and easy

first time user and was pleased with ease of use.

Hard to,find these anywhere. Keep selling them!

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