Oil Seal for Yamaha 30-300 HP and Mercury 60 225 HP 93106-09014 26-82257M

Oil Seal – Fits Yamaha 30-300 HP & Mercury 60-225 HP (Replaces 93106-09014-00, 26-82257M)

This gear housing oil seal is designed for a wide range of Yamaha and Mercury/Mariner outboard motors. It serves as a direct replacement component, ensuring a proper fit and function for lower unit gearcase applications.

Engineered to meet OEM specifications, this seal is a reliable solution for preventing lubricant leaks and water intrusion in demanding marine environments. It directly replaces Yamaha part 93106-09014-00 and Mercury part 26-82257M.

• Installation Method: Direct OEM-style replacement.
• Primary Application: Seals the gear housing to prevent oil leaks and water contamination.
• Material: Built with a durable rubber and metal composite for saltwater resistance.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Oil Seal (Replaces 93106-09014-00 / 26-82257M)

Explosion Diagram

Installation Guide

1. Ensure the engine is off, in neutral, and the battery is disconnected.
2. Place a drain pan under the lower unit and remove the drain and vent screws to empty the gear lubricant.
3. Access the gear housing area where the seal is located. This typically requires removing the propeller assembly.
4. Carefully extract the old, worn seal using a seal puller or flat-head screwdriver, taking care not to scratch or gouge the housing.
5. Thoroughly clean the seal bore and the adjacent area on the shaft, removing any old sealant, rust, or debris.
6. Inspect the shaft surface for any burrs or scoring that could compromise the new seal. Smooth if necessary.
7. Apply a thin coat of marine-grade grease to the inner and outer surfaces of the new oil seal.
8. Position the new seal squarely over the bore and gently tap it into place with a seal driver or a socket of the same outer diameter until it is flush.
9. Reinstall any components that were removed.
10. Replace the drain and vent screw gaskets and refill the gearcase with the correct type and amount of lubricant.
11. Tighten the screws to the proper torque and check for any leaks before operating.

Troubleshooting & FAQ

How do I confirm this oil seal fits my specific engine model?
Check your original part number against our cross-reference list (Yamaha 93106-09014-00, Mercury 26-82257M, Sierra 18-0267, Mallory 9-76423). Also, verify the dimensions (19mm bore × 9mm shaft) and consult our compatible models table. For Yamaha and Mercury, use the provided serial number guides and parts catalogs to be certain.

What are the signs that my gear housing oil seal is failing?
Common signs include milky or discolored gear lube (indicating water intrusion), visible oil leaks around the propeller shaft or lower unit, or a persistent burning oil smell.

How often should I replace the lower unit oil seals?
It is recommended to inspect oil seals during every routine lower unit service or gear lube change. Replace them immediately if any signs of wear, hardening, cracking, or leakage are found, or as part of a major service.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.