Yamaha Outboard Woodruff Key Replaces 90280-04M04 90280-04M04-00

Replace your damaged or worn woodruff key with this premium-quality aftermarket replacement for Yamaha outboard engines. Manufactured to OEM specifications, this woodruff key provides a precise fit and reliable performance. This key is used on a wide range of Yamaha outboard engines in various applications, including flywheels, water pump drive shafts and other engine components, depending on the model. Replaces Yamaha Part Numbers 90280-04M04 90280-04M04-00 OEM part numbers are used for reference only. Fits Suitable for a wide range of Yamaha 2-stroke and 4-stroke outboard engines. This woodruff key is used in various engine applications, depending on the model, including: Flywheel Water pump drive shaft Engine drive components Other applications using Yamaha part number 90280-04M04 Features Premium-quality aftermarket replacement Manufactured to OEM specifications Precision-machined for an accurate fit Corrosion-resistant steel construction Direct replacement for the original part Durable and reliable Suitable for freshwater and saltwater use Why Replace the Woodruff Key? A damaged or sheared woodruff key may cause: Incorrect ignition timing Flywheel movement Water pump drive issues Difficulty starting Reduced engine performance Replacing a worn woodruff key helps maintain correct alignment and reliable engine operation. Why Buy From SSI Marine? Premium marine-grade aftermarket parts Workshop-tested by SSI Marine UK stock ready for immediate dispatch Same working day dispatch before 1 PM (Monday–Friday) Royal Mail Tracked 24 delivery Technical support from experienced outboard specialists Collection available from our Leigh, Manchester workshop Buyer Responsibility Please check your engine model, serial number and existing part number before ordering. Although this key may look identical to others, Yamaha uses different sizes across its engine range. If you are unsure, send us your engine model and serial number and we will be happy to confirm compatibility before purchase.