Yamaha - Woodruff Key - Engine Timing Component - 90280-03M03-00

Overview

You don’t think much about a woodruff key until one lets go and throws everything out of sync. I’ve seen engines lose timing or slip just from this little piece wearing down or shearing. The Yamaha Woodruff Key 90280-03M03-00 keeps critical components locked exactly where they need to be. It’s a small part, but it protects a whole lot of moving pieces.

Key Features

• Locks Components in Alignment – Keeps rotating parts properly positioned on the shaft.

• Maintains Timing Accuracy – Helps prevent slippage that can affect engine performance.

• Precision Yamaha Fitment – Built to exact dimensions for reliable engagement.

• High-Strength Metal Build – Designed to handle torque and resist deformation.

• Essential Service Component – Ideal for repairs, rebuilds, and preventative maintenance.

Engine & Boat Compatibility

The Yamaha Woodruff Key 90280-03M03-00 is used across a range of Yamaha outboard engines and marine equipment.

It is commonly found in crankshaft, flywheel, and other rotating assemblies where proper alignment is critical. Always confirm compatibility using your engine model and parts diagram before installation.

FAQ

Q: What happens if a woodruff key fails?
A: Components can slip out of alignment, leading to timing issues or engine damage.

Q: How do I know if the key is worn or damaged?
A: Look for flattening, distortion, or any signs of shearing.

Q: Should I replace it during routine service?
A: Yes, especially if there’s any visible wear or when servicing related components.

Q: Is installation difficult?
A: It’s usually simple, but proper seating and alignment are important.

Q: Can corrosion impact this part?
A: Yes, marine conditions can cause corrosion over time, so inspection is key.

• Supersessions
  90280-03M07-00