Yamaha 6AH-42718-00-00 – Rubber, Seal 3

Yamaha 6AH-42718-00-00 – Rubber, Seal 3

Precision Sealing for Superior Outboard Protection

The Yamaha 6AH-42718-00-00 – Rubber, seal 3 is a genuine OEM sealing component engineered to deliver a watertight and vibration-resistant fit for specific Yamaha outboard models. As a critical element of the engine’s external sealing system, this durable rubber seal helps prevent water intrusion, debris buildup, and premature wear to internal components.

Constructed from marine-grade elastomer, this seal maintains flexibility and performance in fluctuating temperatures and saltwater environments.

Key Features

OEM-Certified Fit

Designed specifically to match Yamaha outboard configurations for easy installation and dependable sealing.

Weather-Resistant Rubber

Withstands UV rays, water exposure, and high engine temperatures.

Durable and Long-Lasting

Prevents moisture ingress and helps reduce mechanical vibration over time.

Exact Replacement Part

Reliable substitute for aging or degraded factory-installed seals.

Ideal Use Cases

Replacing worn or cracked sealing components

Ensuring optimal protection of engine housing and cowling

Reducing chances of saltwater corrosion and contamination

Why Sealing Integrity Matters

Even small rubber seals play a big role in your engine’s health. The Yamaha 6AH-42718-00-00 – Rubber, seal 3 is engineered to shield critical engine areas from the elements. Without it, components are vulnerable to corrosion, vibration damage, and potential mechanical failure. A fresh seal helps maintain factory-grade protection and long-term performance.

Frequently Asked Questions

How do I know when it’s time to replace this rubber seal?

Signs of deterioration include cracking, stiffness, or visible wear. If the seal no longer holds tightly or water is present where it shouldn't be, it's time to replace it.

Is this seal difficult to install on my own?

Most users can replace it with basic tools and careful handling. If unsure, consult a Yamaha-certified technician for proper installation.

What if my engine model isn’t listed—can I still use this part?

Always confirm part compatibility using your Yamaha outboard’s model and serial number before purchasing to ensure a proper fit.