The Cometic C3731 Top End Gasket Kit is designed for reliable top-end service on 2019–2023 Yamaha YZ85 motorcycles. This kit helps restore proper sealing during engine maintenance while supporting dependable compression, torque retention, and overall engine performance. It is engineered as a direct-fit replacement for the specified Yamaha YZ85 applications.
Cometic graphite gaskets feature a steel core laminated on both sides with flexible graphite, providing strength and sealing flexibility. Fiber gaskets are designed for maximum seal quality, flexibility, and torque retention, while the included O-ring gaskets meet or exceed OEM specifications. Together, these materials provide a comprehensive sealing solution for top-end engine work.
Fitment: Fits 2019, 2020, 2021, 2022, and 2023 Yamaha YZ85 models. This Cometic kit is identified by manufacturer part number C3731 and vendor part number C3731. Verify the motorcycle model and engine application before installation to ensure proper fitment.
Features:
- Compression Support: Raises compression to help improve low-end power.
- Graphite Construction: Uses a steel core laminated on both sides with flexible graphite for strength and sealing performance.
- Fiber Gaskets: Designed for maximum sealing, flexibility, and torque retention.
- O-Ring Gaskets: Meet or exceed OEM specifications for dependable sealing.
- Application: Fits 2019–2023 Yamaha YZ85 motorcycles.
Fitment:
2019 Yamaha YZ85
2020 Yamaha YZ85
2021 Yamaha YZ85
2022 Yamaha YZ85
2023 Yamaha YZ85