Yamaha - Oil Tank Sub Assembly - Oil Storage Component - 6K1-21708-03-00

Overview

The Yamaha Oil Tank Sub Assembly | 6K1-21708-03-00 is one of those parts you don’t think about until your oil system starts acting up. It holds and feeds oil to the engine, so when it’s not working right, you risk running lean on lubrication—and that’s not something you want to gamble with. Whether you’re seeing warning lights or inconsistent oil delivery, this is a key component to check. Keeping it in good shape means your engine stays protected every time you’re out on the water.

Key Features

• Reliable Oil Storage – Holds engine oil securely for consistent delivery to the system.

• Steady Oil Feed Support – Helps maintain proper lubrication flow during operation.

• OEM Fit Design – Matches Yamaha specifications for proper installation and function.

• Durable Marine Build – Designed to withstand vibration, heat, and harsh conditions.

Compatibility

Compatible with select Yamaha outboard engines using this oil tank sub assembly configuration.
Commonly used in Yamaha oil-injected two-stroke systems.
Always confirm compatibility using your engine model and part number.

FAQs

Q: What are signs this oil tank assembly is failing?
A: Oil warning lights, inconsistent oil delivery, or visible cracks and leaks.

Q: Can a faulty oil tank cause engine damage?
A: Yes, if oil flow is interrupted, it can lead to serious internal wear or failure.

Q: Do these tanks need regular maintenance?
A: Not much, but checking for cracks, leaks, or contamination is important.

Q: Is air in the oil system a concern?
A: Yes, air pockets can disrupt oil flow and should be addressed during installation.

Q: Is replacement difficult?
A: It’s usually straightforward, but proper hose routing and connections matter.