Yamaha Xmax 300 Magnet Gasket (B74-E5453–00)

The Yamaha XMAX 300 Magnet Gasket (B74‑E5453‑00) is a specially designed seal that fits between the engine case and the magnet (pickup) cover or related components in the XMAX 300. Its purpose is to create a reliable, leak‑proof barrier that prevents oil or other engine fluids from escaping while ensuring the correct positioning of the magnetic pickup or related assembly.

Made to Yamaha’s original specifications, this gasket is crafted from a material that can endure heat, pressure, and vibration typical of engine service. Over time, gaskets can harden, crack or lose elasticity due to repeated thermal cycling and age, leading to fluid seepage or inconsistent sealing. Replacing a worn or damaged magnet gasket with this genuine‑style part restores proper sealing integrity and helps maintain correct engine lubrication, performance and cleanliness around the pickup area. Correct sealing also contributes to the long‑term durability of internal components by keeping contaminants out and fluids in.