Propeller Shaft Oil Seal – Fits Yamaha 115-300 HP (Replaces 93101-30M17-00)

Propeller Shaft Oil Seal – Fits Yamaha 115-300 HP (Replaces 93101-30M17-00)

This propeller shaft oil seal is designed for a precise fit on a wide range of Yamaha Outboard V4 and V6 engines from 115 HP to 300 HP, including both 2-stroke and 4-stroke models manufactured from 1984 to the present.

It serves as a direct replacement for several OEM and aftermarket part numbers, ensuring compatibility and reliable performance for lower unit gearcase repairs.

• Installs in the lower unit/gearcase to prevent oil leaks and water intrusion.
• Features a spring-loaded design for improved sealing against the propeller shaft.
• Package includes 2 x Propeller Shaft Oil Seals, providing a complete solution for service needs.

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.

Technical Specifications

Package Contents

• 2 x Propeller Shaft Oil Seal (Replaces 93101-30M17-00)

Installation Guide

Professional installation is recommended. The following are general steps for replacement:

1. Drain the lower unit gearcase oil completely.
2. Remove the propeller, followed by the bearing carrier assembly from the gearcase.
3. Carefully pry out the old propeller shaft seal(s) from the bearing carrier, taking care not to scratch the housing.
4. Thoroughly clean the seal seating area inside the carrier to remove any old sealant or corrosion.
5. Lightly coat the outer surface of the new seal and the inner surface of the carrier with marine grease.
6. Using a seal driver or a socket with a matching outside diameter, press the new seal in squarely until it is fully seated.
7. Reinstall the bearing carrier assembly, propeller, and all associated hardware.
8. Refill the gearcase with the manufacturer-specified marine gear lubricant to the correct level.

Troubleshooting & FAQ

Q: How do I confirm this seal fits my specific Yamaha engine model?

A: Start by checking the compatible models table on this page. For absolute certainty, use the linked Yamaha Serial Number Guide to identify your exact model and year. Cross-referencing the OEM part number (93101-30M17-00) is the most reliable method.

Q: What are the common signs of a failing propeller shaft seal?

A: The most common indicators are a visible gear oil leak around the propeller shaft area or finding water in your gear lube (a milky, grey appearance) during a routine oil change. Both signs indicate a compromised seal that should be replaced immediately to prevent gearcase damage.

Q: How often should I replace the propeller shaft seal?

A: Seals should be inspected during every routine lower unit service. It is recommended to replace them whenever the bearing carrier is removed for other service, if any leaks are detected, or as part of a preventative maintenance schedule every few seasons, especially in saltwater environments.

Q: OEM vs. Aftermarket?

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.