Yamaha - Woodruff Key - Engine Timing Component - 90280-05022-00

Overview

It’s easy to overlook a part this small, but I’ve seen plenty of engines sidelined because of a failed key. When this piece wears or shears, things like timing and alignment go off fast. The Yamaha Woodruff Key 90280-05022-00 keeps everything indexed where it should be so components don’t slip under load. It’s a simple fix that protects a lot of bigger, more expensive parts.

Key Features

• Maintains Component Alignment – Keeps rotating parts properly positioned on the shaft.

• Supports Engine Timing Accuracy – Helps prevent slippage that can affect performance.

• Precision Yamaha Fitment – Manufactured to exact tolerances for proper seating.

• High-Strength Metal Build – Designed to handle torque and resist wear over time.

• Reliable Replacement Part – Ideal for maintenance, rebuilds, or repairs.

Engine & Boat Compatibility

The Yamaha Woodruff Key 90280-05022-00 is used across a wide range of Yamaha outboard engines and marine equipment.

It is commonly found in assemblies such as flywheels, crankshafts, and other rotating components where precise alignment is critical. Always confirm compatibility using your engine model and parts diagram before installation.

FAQ

Q: What happens if this key fails?
A: Components can slip out of alignment, causing timing issues or internal damage.

Q: How can I tell if the key is worn?
A: Look for flattening, distortion, or signs of shearing.

Q: Should I replace the key during service?
A: Yes, especially if it shows any wear or damage.

Q: Is installation straightforward?
A: Yes, but it must be seated properly to ensure correct alignment.

Q: Can exposure to water cause problems?
A: Over time, corrosion can affect the fit and strength, so inspection is important.