The Athena P400485999070 54mm Cylinder Head O-Ring Kit is designed to provide reliable sealing performance for compatible Yamaha YZ125 engines. Manufactured by Athena, this replacement kit supports proper cylinder head sealing and helps protect against coolant and combustion-gas leaks during engine operation.
Built for direct fitment, this kit is compatible with 2001, 2002, 2003, and 2004 Yamaha YZ125 models. The 54mm application makes it a suitable service replacement for the original cylinder head O-rings when completing top-end maintenance, cylinder work, or engine reassembly. Confirm the model year and engine application before installation.
Manufactured to support dependable fit and function, the Athena P400485999070 O-Ring Kit is a practical choice for motorcycle repair and performance maintenance. Replace worn, flattened, or damaged sealing rings to help restore proper engine sealing and maintain reliable operation.
Features:
- Application: 54mm cylinder head O-ring kit
- Brand: Athena
- Manufacturer part number: P400485999070
- Vendor part number: P400485999070
- Fitment: 2001 Yamaha YZ125
- Fitment: 2002 Yamaha YZ125
- Fitment: 2003 Yamaha YZ125
- Fitment: 2004 Yamaha YZ125
- Function: Supports reliable cylinder head sealing during engine operation
- Use: Suitable for top-end service, cylinder work, and engine reassembly
Fitment:
2001 Yamaha YZ125
2002 Yamaha YZ125
2003 Yamaha YZ125
2004 Yamaha YZ125