Oil Seal – Fits MerCruiser Bravo 1, 2, 3 Drives (Replaces 26-807006, 26-18816)

Oil Seal – Fits MerCruiser Bravo 1, 2, 3 Drives (Replaces 26-807006, 26-18816)

This oil seal is designed for a precise fit on MerCruiser Bravo 1, Bravo 2, Bravo 3, Bravo XR, Bravo XZ, and Blackhawk stern drives manufactured from 1988 and newer. It serves as a direct replacement for the drive shaft housing oil seal, preventing leaks and protecting internal components.

It is engineered to directly replace MerCruiser part numbers 26-807006 and 26-18816, as well as GLM 86730, OMC 0509335, and Aftermarket AM26-807006.

• Function: Seals the drive shaft housing on the Bravo drive yoke assembly.
• Material: Constructed from a durable rubber and metal combination for longevity.
• Package Includes: 2 x Oil Seals to ensure you have what's needed for a complete service.

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 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.

Specific MerCruiser Serial Number Ranges

Technical Specifications

Package Contents

• 2 x Oil Seal (Replaces 26-807006)

Installation Guide

1. Ensure the engine is off and the stern drive is tilted to a service position and securely supported.
2. Disassemble the drive components as required to gain access to the drive shaft yoke assembly and the existing oil seal.
3. Carefully pry out the old oil seal from its housing using a seal puller or appropriate tool. Note its orientation before removal.
4. Thoroughly clean the seal housing and the shaft surface, removing any old sealant, corrosion, or debris.
5. Inspect the shaft for any deep grooves or damage. A smooth surface is critical for a proper seal.
6. Lightly lubricate the inner lip and outer diameter of the new seal with 2-4-C marine lubricant or a similar appropriate grease.
7. Position the new seal squarely over the housing. Using a seal driver or a socket with a matching outer diameter, gently tap the seal into place until it is fully seated and flush.
8. Reassemble all drive components in the reverse order of disassembly, torquing fasteners to manufacturer specifications.

Troubleshooting & FAQ

Q: How do I confirm this oil seal fits my MerCruiser Bravo drive?

A: First, check that your drive is a Bravo I, II, III, XR, XZ, or Blackhawk model from 1988 or newer. For absolute certainty, match your drive's serial number to the specific ranges listed in our "Compatible Engine Models" section above. Cross-referencing the OEM part number (26-807006 or 26-18816) is also a reliable method.

Q: What are the signs that my current oil seal is failing?

A: The most common signs are visible gear lube leaking from the area where the drive shaft enters the upper housing, or finding water in your gear lube (which will make it look milky or creamy). Either symptom indicates a compromised seal that should be replaced immediately to prevent major gearcase damage.

Q: How often should this oil seal be replaced?

A: There is no fixed replacement interval. It should be inspected for leaks during routine annual service and replaced at the first sign of leakage or damage. It is also standard practice to replace this seal whenever the drive is disassembled for other service to ensure reliability.

Q: Is this an OEM or aftermarket part?

A: 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.

Q: How fast do you ship and how much does it cost?

A: 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.

Q: What is your warranty and return policy?

A: 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.