Product description
The Cometic Top End Gasket Kit For Yamaha YFM660R 2001-2005 is part of the latest collection from Cometic.
Features:
- Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end
- MLS head gaskets promote an even torque load across the gasket sealing surface, providing less bore distortion and better piston ring seal for more power
- 4-stroke head gaskets are made to perform on today's highest-output 4-stroke naturally aspirated and boosted machines, utilizing a multi-layered steel design with the outer layers being embossed and coated with a Viton rubber coating; these head gaskets are designed to meet the demands of today's high-horsepower, high-cylinder-pressure engines
- EST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base and rocker gaskets covered with a proprietary rubber material
- Head gasket material allows heat to be drawn away from the combustion ring and dissipated evenly across the gasket surface to eliminate hot spots and gasket failure
- Made in the USA
Specifications:
- Bore Size: 102.00 mm (4.015")
- Engine Type: 4-Stroke
- Material: MLS (Multi-layer Steel)
- Model: Hi-Performance
- Product Name: Gasket Kit
- Thickness: 0.76 mm (0.030")
- Type: Top End
- Units: Kit
To fit:
- YAMAHA YFM 660 R 2001 Raptor American Models
- YAMAHA YFM 660 R 2002 Raptor American Models
- YAMAHA YFM 660 R 2003 Raptor Limited Edition American Models
- YAMAHA YFM 660 R 2003 Raptor American Models
- YAMAHA YFM 660 R 2004 Raptor Limited Edition American Models
- YAMAHA YFM 660 R 2004 Raptor American Models
- YAMAHA YFM 660 R 2005 Raptor Special Edition American Models
- YAMAHA YFM 660 R 2005 Raptor American Models
Manufacturer part number: C7798
View all Cometic. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Cometic Top End Gasket Kit For Yamaha YFM660R 2001-2005
To fit:
- YAMAHA YFM 660 R 2001 Raptor American Models
- YAMAHA YFM 660 R 2002 Raptor American Models
- YAMAHA YFM 660 R 2003 Raptor Limited Edition American Models
- YAMAHA YFM 660 R 2003 Raptor American Models
- YAMAHA YFM 660 R 2004 Raptor Limited Edition American Models
- YAMAHA YFM 660 R 2004 Raptor American Models
- YAMAHA YFM 660 R 2005 Raptor Special Edition American Models
- YAMAHA YFM 660 R 2005 Raptor American Models

Cometic manufactures high-performance gaskets and engine sealing solutions for motorcycles, scooters, and powersports vehicles. Known for precision engineering and premium materials, Cometic products deliver reliable sealing, durability, and improved engine performance. Trusted by racers and mechanics worldwide, Cometic gaskets are designed to withstand extreme temperatures and pressures in demanding riding conditions.
Product description
The Cometic Top End Gasket Kit For Yamaha YFM660R 2001-2005 is part of the latest collection from Cometic.
Features:
- Top end gasket kit includes correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end
- MLS head gaskets promote an even torque load across the gasket sealing surface, providing less bore distortion and better piston ring seal for more power
- 4-stroke head gaskets are made to perform on today's highest-output 4-stroke naturally aspirated and boosted machines, utilizing a multi-layered steel design with the outer layers being embossed and coated with a Viton rubber coating; these head gaskets are designed to meet the demands of today's high-horsepower, high-cylinder-pressure engines
- EST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base and rocker gaskets covered with a proprietary rubber material
- Head gasket material allows heat to be drawn away from the combustion ring and dissipated evenly across the gasket surface to eliminate hot spots and gasket failure
- Made in the USA
Specifications:
- Bore Size: 102.00 mm (4.015")
- Engine Type: 4-Stroke
- Material: MLS (Multi-layer Steel)
- Model: Hi-Performance
- Product Name: Gasket Kit
- Thickness: 0.76 mm (0.030")
- Type: Top End
- Units: Kit
To fit:
- YAMAHA YFM 660 R 2001 Raptor American Models
- YAMAHA YFM 660 R 2002 Raptor American Models
- YAMAHA YFM 660 R 2003 Raptor Limited Edition American Models
- YAMAHA YFM 660 R 2003 Raptor American Models
- YAMAHA YFM 660 R 2004 Raptor Limited Edition American Models
- YAMAHA YFM 660 R 2004 Raptor American Models
- YAMAHA YFM 660 R 2005 Raptor Special Edition American Models
- YAMAHA YFM 660 R 2005 Raptor American Models
Manufacturer part number: C7798
View all Cometic. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Cometic Top End Gasket Kit For Yamaha YFM660R 2001-2005
To fit:
- YAMAHA YFM 660 R 2001 Raptor American Models
- YAMAHA YFM 660 R 2002 Raptor American Models
- YAMAHA YFM 660 R 2003 Raptor Limited Edition American Models
- YAMAHA YFM 660 R 2003 Raptor American Models
- YAMAHA YFM 660 R 2004 Raptor Limited Edition American Models
- YAMAHA YFM 660 R 2004 Raptor American Models
- YAMAHA YFM 660 R 2005 Raptor Special Edition American Models
- YAMAHA YFM 660 R 2005 Raptor American Models

Cometic manufactures high-performance gaskets and engine sealing solutions for motorcycles, scooters, and powersports vehicles. Known for precision engineering and premium materials, Cometic products deliver reliable sealing, durability, and improved engine performance. Trusted by racers and mechanics worldwide, Cometic gaskets are designed to withstand extreme temperatures and pressures in demanding riding conditions.































