The Cometic C3540-EST 97mm Top End Gasket Kit is designed for Yamaha four-stroke off-road motorcycles requiring dependable top-end sealing and increased compression. This kit is engineered to fit 2014–2017 Yamaha YZ450F models, 2016–2018 Yamaha YZ450FX models, and 2016–2018 Yamaha WR450F models. The 97mm configuration supports the correct cylinder and engine fitment for these applications while helping restore reliable performance during top-end service.
Cometic uses application-specific gasket materials to support a secure seal, consistent torque retention, and dependable operation under demanding riding conditions. The graphite head gasket features a steel core laminated on both sides with flexible graphite, providing strength and sealing compliance. Included fiber gaskets are designed to maximize sealing performance, flexibility, and torque retention, while the O-ring gaskets meet or exceed applicable OEM specifications. Together, these components help reduce the risk of leaks and support proper engine function after assembly.
Installing the Cometic C3540-EST Top End Gasket Kit is an effective choice for maintenance, rebuild, or performance-oriented engine service. The kit is intended for compatible Yamaha YZ450F, YZ450FX, and WR450F applications and is manufactured by Cometic for consistent fit and dependable sealing. Verify the motorcycle model and year before installation to ensure proper compatibility.
Features:
- 97mm top end gasket kit designed for compatible Yamaha 450cc four-stroke engines
- Raises compression to support improved low-end power
- Graphite gaskets feature a steel core laminated on both sides with flexible graphite
- Fiber gaskets are designed for maximum sealing, flexibility, and torque retention
- O-ring gaskets meet or exceed OEM specifications
- Fits 2014–2017 Yamaha YZ450F
- Fits 2016–2018 Yamaha YZ450FX
- Fits 2016–2018 Yamaha WR450F
- Brand: Cometic
- Manufacturer part number: C3540-EST
- Vendor part number: 68-35400E
Fitment:
2014 Yamaha YZ450F
2015 Yamaha YZ450F
2016 Yamaha WR450F
2016 Yamaha YZ450F
2016 Yamaha YZ450FX
2017 Yamaha WR450F
2017 Yamaha YZ450F
2017 Yamaha YZ450FX
2018 Yamaha WR450F
2018 Yamaha YZ450FX