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Engineered Marine Products 26-00288 Lower Unit Gearcase Seal Kit

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

26-00288
09/12/2036 11:17 AM
Sale Price

$50.54

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Engineered Marine Products 26-00288 is a comprehensive lower unit gearcase seal kit designed for Mercury and Mariner V6 outboard motors. This complete seal kit provides all the essential seals, gaskets, and O-rings needed for proper lower unit maintenance and rebuild.

Kit Includes:

  • Bushing gasket (18-2155)
  • Gearcase gasket (18-2919)
  • Three oil seals (18-2002, 18-2013, 18-2014, 18-2009)
  • Two water pump gaskets (18-2914, 18-2915)
  • Bushing (18-3110)
  • Five O-rings (18-7159, 18-7176, 18-7157, 18-7153, 18-7426)
  • Drain screw gasket (18-2945)

Compatibility:

  • Mercury/Mariner 135 HP and 150 HP V6 outboards (2.0L, 2.4L, and 2.5L)
  • Mercury/Mariner 175 HP and 200 HP V6 outboards (2.0L, 2.4L, and 2.5L)
  • Fits models from 1979 to current
  • Compatible with both preload pin and non-preload pin driveshaft configurations
  • Fits both 4-3/4" and 4-1/4" gearcase sizes

This kit directly replaces Mercury OEM part number 26-89238A2, Mallory 9-74201, and Quicksilver 26-89238A2. It provides a cost-effective alternative to OEM parts while maintaining quality sealing performance for lower unit service and repair.

Awesome

Prices have gone up in the last month. Still it was an easy shopping experience.

Convenient Service

great ride

Fast and easy to find product and check out w/ Paypal

Excellent service & notifications thru Nick Golemis!

Smooth and easy

so far so good

Easy check out I like the PayPal option

easy ordering

It was quick and easy

It is quick.

The ordering process was simple and user friendly. The pricing was the lowest I could find for a brand new AMP Powerstep for my Ford F150. The tracking number was provided and the item is scheduled for FedEx ground delivery in 3-days.

Good price, quick shipping, no instant refund though!

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