Marine Propeller Cotter Pin – Fits Yamaha, Suzuki, Johnson/Evinrude Outboards (Replaces 91401-40025-00, 09204-03003, 5030087)

Marine Propeller Cotter Pin – Fits Yamaha, Suzuki, Johnson/Evinrude Outboards

This high-quality cotter pin is designed to secure the propeller nut on a wide range of outboard motors. It serves as a direct-fit replacement for numerous OEM and aftermarket part numbers, ensuring your propeller remains safely attached during operation. Made from 304 Stainless Steel, it offers excellent corrosion resistance for long-term use in marine environments.

Compatible with Yamaha (25–150 HP), Suzuki (2.5–300 HP), and Johnson/Evinrude (4–225 HP) outboards. Please see the cross-reference and compatibility tables below to confirm fitment for your specific model.

• Material: 304 Stainless Steel for superior corrosion resistance.
• Dimensions: 4 × 35 mm (approximately 5/32" × 1-3/8").
• Installation: Manual insertion through the propeller shaft nut.

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 Suzuki owners, You can review exploded diagrams here to verify part numbers: Suzuki Parts Diagrams & Catalog.

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson Serial Number Guide.

Technical Specifications

Package Contents

• 10 or 12 x Marine Propeller Cotter Pins (Note: quantity varies by pack/seller).

Installation Guide

Follow these general steps to install the cotter pin. Always consult your engine's service manual for specific instructions.

1. Ensure the engine is off and the propeller cannot turn. For safety, disconnect the spark plug leads.
2. Remove the old, damaged cotter pin using pliers, straightening the bent ends and pulling it out.
3. Align the slots on the propeller nut with the hole in the propeller shaft.
4. Slide the new cotter pin through the hole until the head is seated firmly against the nut.
5. Using pliers, bend both prongs of the pin in opposite directions around the nut to secure it in place.

Troubleshooting & FAQ

Q: How do I confirm this cotter pin fits my specific engine?

A: The best way is to match your old part number to one listed in our Part Number Cross-Reference table. You can also check the Compatible Engine Models tables to see if your engine's HP, year, and model are listed.

Q: How often should I replace the propeller cotter pin?

A: For safety, it is highly recommended to use a new cotter pin every time you remove and reinstall your propeller. They are designed for single use as bending the metal weakens it.

Q: Is this a genuine OEM 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.