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Cometic 98-02 Yamaha YZ400/426F 95MM Top End Kit

SKU: CGSC7689

Powersports Gasket Kits

CG Powersports Top End Gasket Kit...

Cometic 98-02 Yamaha YZ400/426F 95MM Top End Kit

SKU: CGSC7689

Powersports Gasket Kits

CG Powersports Top End Gasket Kit...

A$74.80
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Description

IMPORTANT NOTICE: Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Cometic Gasket, Cometic, Cometic Gasket Automotive, Cometic Gasket Marine, Cometic Gasket Powersports, COMETIC GASKETS, Cometic Powersport Gaskets StreetFX SKU cgsC7689 SFX Item ID 4163163 Accounting SKU cgs-C7689 Manufacturer SKU C7689 Manufacturer UPC 191070065140 Alternative References C7689, CPG-C7689

Cometic 98-02 Yamaha YZ400/426F 95MM Top End Kit

Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets for Powersports, Street Bikes, Snowmobiles, Harley-Davidson and V-Twin applications.

Additional Information

Yamaha 2000 WR400F, YZ400F, WR426F, YZ426F Top End Gasket Kit, 95mm Bore, .027" MLS Cylinder Head Gasket, Without Oil Seals

Part Type

Engine Top End Kit

Features and Benefits

  • All of Cometic's gaskets and seals have been tested on both the street and the track as well as vigorous Dyno shakedowns
  • No Additional Sealer Needed

Product Details

Description:Top End Gasket Kit
Engine Make/Size:Yamaha Motorcycle
Part Number:cgsC7689

Product Overview



Data: v2 - Desc: v4.2 - Upd: 2026-10-13 17:21:34

Product Overview

Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets for Powersports, Street Bikes, Snowmobiles, Harley-Davidson and V-Twin applications.


Features and Benefits

  • No Additional Sealer Needed

Product Details

Description:Top End Gasket Kit
Engine Make/Size:Yamaha Motorcycle
Part Number:cgsC7689
WARNING CA Proposition 65 Message:The state of California has determined that certain chemicals used in the manufacture of this product have been known to cause cancer and birth defects. For more information; visit www.p65Warnings.ca.gov
WARNING CA Proposition 65:Yes

Part Type

Engine Top End Kit

Data: v4.2 - Upd: 2026-09-27 16:30:05

Features

  • All of Cometic's gaskets and seals have been tested on both the street and the track as well as vigorous Dyno shakedowns
  • No Additional Sealer Needed

Specifications

Gaskets, Top End Set, Yamaha, Motorcycle, Kit

Cometic Gasket top-end gasket kits contain the most technologically advanced materials available to ensure a critical seal and superior durability. These Cometic Gasket top-end gasket kits come complete with a head gasket, a base gasket, and designated kits include reed, power valve, and exhaust gaskets. Cometic graphite head gaskets are manufactured from non-asbestos, flexible graphite laminated to a stainless steel core, which is impervious to fuels, coolants, and oils.

Product Attributes
BrandCometic Powersport Gaskets
Manufacturer's Part NumberC7689
Part TypePowersports Gasket Kits
Product LineCometic Gasket Top-End Gasket Kits
UPC191070065140
Gasket Set TypeTop-end set
Head Gaskets IncludedYes
Bore (mm)95.000mm
Compressed Thickness (in.)0.027 in.
Cylinder Head Gasket MaterialMulti-layer steel
Cylinder Head O-Rings IncludedNo
Cylinder Head Sealing Washers IncludedNo
Base Gaskets IncludedYes
Base Gasket MaterialRubber coated steel core
Cam Chain Tensioner Gaskets IncludedYes
Cam Chain Tensioner Gasket MaterialFoam coated aluminum
Cam Chain Tensioner O-Rings IncludedNo
Valve Stem Seals IncludedNo
Intake Gaskets IncludedNo
Exhaust Gaskets IncludedNo
Power Valve Gaskets IncludedNo
Crankcase Clutch Cover Gasket IncludedNo
Outer Clutch Cover Gasket IncludedNo
Crank Oil Seal Left Side IncludedNo
Crank Oil Seal Right Side IncludedNo
Crankcase Center Gasket IncludedNo
Magneto Stator Cover Gasket IncludedNo
Water Pump Gaskets IncludedNo
QuantitySold as a kit.

Manufacturer Attributes
Title Cometic Powersports Yamaha 2000 WR400F, YZ400F, WR426F, YZ426F Top End Gasket Kit
Package Quantity 3
Manufacturer Designation Yamaha 2000 WR400F, YZ400F, WR426F, YZ426F Top End Gasket Kit
Product Class Engine Top End Kit
Construction/Type Yamaha 2000 WR400F, YZ400F, WR426F, YZ426F Top End Gasket Kit, 95mm Bore, .027" MLS Cylinder Head Gasket, Without Oil Seals
Vehicle Brief Yama WR400F/YZ400F/WR426F/YZ426F Top Kit

Product Details

Description:Top End Gasket Kit
Engine Make/Size:Yamaha Motorcycle
Part Number:cgsC7689
WARNING CA Proposition 65 Message:The state of California has determined that certain chemicals used in the manufacture of this product have been known to cause cancer and birth defects. For more information; visit www.p65Warnings.ca.gov
WARNING CA Proposition 65:Yes

Reference Information

Brand Name/s Cometic Gasket
StreetFX SKU cgsC7689
SFX Item ID 4163163
Supplier Item Code 4163163
Manufacturer SKU C7689
Manufacturer UPC 191070065140
Alternative References CPG-C7689, YZ400/426F, 95MM

Compatibility

Cometic 98-02 Yamaha YZ400/426F 95MM Top End Kit
Year RangeMakeModelSubmodelsRegion
2000 Yamaha WR400F Base US
2001-2002 Yamaha WR426F Base US
1998-1999 Yamaha YZ400F Base US
2000-2002 Yamaha YZ426F Base US

Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.

Detailed Compatibility


Application Data
UniversalNo
MakeYAMAHA
ModelWR400F
Beginning Year2000
Ending Year2000
UniversalNo
MakeYAMAHA
ModelWR426F
Beginning Year2001
Ending Year2002
UniversalNo
MakeYAMAHA
ModelYZ400F
Beginning Year1998
Ending Year1999

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.

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