The Cometic C3549-EST 77mm Top End Gasket Kit is designed to provide reliable sealing and increased compression for compatible Yamaha 250cc four-stroke motorcycles. This kit raises compression to support improved low-end power while delivering the dependable fit and sealing performance expected from Cometic engine gaskets.
The kit combines application-specific gasket materials selected for durability and torque retention. Graphite gaskets feature a steel core laminated on both sides with flexible graphite, while fiber gaskets provide maximum sealing performance, flexibility and torque retention. O-ring gaskets meet or exceed OEM specifications for consistent sealing around critical engine components.
Fitment: Fits 2014-2017 Yamaha YZ250F, 2015-2017 Yamaha YZ250FX and 2015-2017 Yamaha WR250F models. Verify the motorcycle model and year before installation to ensure proper application. The manufacturer part number is C3549-EST, and the vendor part number is 68-35490E.
Features:
- Compression Increase: Raises compression for improved low-end power.
- Graphite Gaskets: Feature a steel core laminated on both sides with flexible graphite for reliable sealing.
- Fiber Gaskets: Designed for maximum seal, flexibility and torque retention.
- O-Ring Gaskets: Meet or exceed OEM specifications for dependable engine sealing.
- Application: Fits 2014-2017 Yamaha YZ250F, 2015-2017 Yamaha YZ250FX and 2015-2017 Yamaha WR250F models.
- Size: 77mm gasket kit for compatible Yamaha 250cc four-stroke engines.
- Brand: Cometic.
- Manufacturer Part Number: C3549-EST.
- Vendor Part Number: 68-35490E.
Fitment:
2014 Yamaha YZ250F
2015 Yamaha WR250F
2015 Yamaha YZ250F
2015 Yamaha YZ250FX
2016 Yamaha WR250F
2016 Yamaha YZ250F
2016 Yamaha YZ250FX
2017 Yamaha WR250F
2017 Yamaha YZ250F
2017 Yamaha YZ250FX
2018 Yamaha WR250F
2018 Yamaha YZ250F
2018 Yamaha YZ250FX
2019 Yamaha WR250F
2019 Yamaha YZ250FX