The Cometic C3811 Top End Gasket Kit is designed for reliable engine rebuilding and improved low-end power on select 250cc two-stroke applications. This kit raises compression while providing the sealing performance needed for demanding off-road and motocross use. It is engineered for a precise fit on 2023 KTM 250 SX, 2023 KTM 250 XC and 2023 Husqvarna TC 250 models.
Cometic uses application-focused gasket materials to support consistent compression, torque retention and long-term sealing performance. The graphite gaskets feature a steel core laminated on both sides with flexible graphite, helping accommodate surface irregularities while maintaining a dependable seal. Fiber gaskets are designed for maximum sealing capability, flexibility and torque retention, while the included O-ring gaskets meet or exceed OEM specifications.
Whether servicing the top end during routine maintenance or completing an engine rebuild, the Cometic C3811 kit provides the essential gasket coverage for compatible KTM and Husqvarna engines. Verify the motorcycle model and year before installation to ensure proper fitment. Manufacturer part number: C3811. Vendor part number: C3811.
Features:
- Raises compression for 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 2023 Husqvarna TC 250, 2023 KTM 250 SX and 2023 KTM 250 XC
Fitment:
2023 Husqvarna TC 250
2023 KTM 250 SX
2023 KTM 250 XC