Cometic EST Top End Gasket Set - 98mm
Extreme Sealing Technology
Includes head and base gaskets, valve stem seals and copper crush washers
Ensure a critical seal and superior durability that meets and exceeds OEM specifications
Gaskets are made from quality materials such as MSL (Multi-Layer Steel), rubber-coated steel and aluminum foam material
MLS head gaskets are made from Viton-coated stainless steel material and feature an embossed gasket design that is ideal for high combustion pressures and lightweight engines
Graphite material extracts heat away from the combustion area, eliminating hot spots
Cometic graphite material is impervious to fuels, coolant and oil
Maximum seal and flexibility is obtained with excellent torque retention
Included Items

1. (1) Base Gasket
2. (1) Engine Case Gasket
3. (1) Yam YZ450F Ex Gasket 03-05
4. (1) Head Gasket
5. (2) Exhaust Valve Stem Seal
6. (1) Intake Valve Stem Seal
7. (2) .653 X .413 X.063 Copper Washers
8. (2) Copper Washers 6X11X1
9. (4) Copper Washers 8.5X15X1.5

Specs
Product Name Gasket Kit
Type Top End
Model Hi-Performance
Material MLS (Multi-layer Steel)
Bore Size 98.00 mm / 3.858"
Thickness 0.69 mm / 0.027"
Engine Type 4-Stroke
Units Kit
Riding Style ATV

Package info
Weight 0.19 lbs
Height 0.66
Length 7
Width 5.94

Yamaha
YFZ450 (2004-2009, 2012-2013)
YFZ450 Bill Balance Edition (2006-2007)
YFZ450 SE (2007-2008)
YFZ450X (2010-2011)