COMPLETE ENGINE GASKET KIT 27 YAMAHA YZ F 250 ATHENA P400485900275 OIL SEALS INCLUDED

The Athena Complete Gasket Kit with oil seals is intended for a full engine overhaul of the specified Yamaha YZ F. It provides the gaskets, seals and associated sealing components needed when dismantling and rebuilding the engine, with components designed to match original equipment fitment and withstand prolonged off-road use.

Features

• Developed for demanding motocross and enduro engine applications.


• Gaskets are track-tested and refined through collaboration between Athena’s research and development department and race engineers, including work with teams in MXGP and AMA competition.


• Athena works with European and Japanese off-road manufacturers on original equipment applications.

Specifications

• Gasket design incorporates multi-layer embossing for uniform compression and sealing.


• Development and validation methods include 2D/3D modelling, Fuji Paper and Tin Testing, FEM simulations, and static and dynamic test benches.


• Dimensional accuracy is checked using profilometers and Virtek® systems.

Kit Contents

• Head, base, crankcase, exhaust and valve cover gaskets.


• Engine oil seals, valve stem seals, O-rings and washers.

Cross-Reference OEM Part Numbers

• Athena: P400485900275.

Vehicle Fitments

• Yamaha YZ F 250 cc — 2027.