Engine

2-Piece Cast Aluminum ConstructionOil Filter Access for Hassle Free Filter ChangesIncreased Coolant Flow at all RPM RangesPatented Nautilus Style Impeller for Hydrodynamic Efficiency

Cast from the highest quality aluminumSeals perfectly to keep out dirt and moistureCovers come with gasketsHolds clutch cable more securely (Yamaha YZ models)Give your bike the factory "WORKS" lookCover gaskets may be used with stock or factory covers

Cast from the highest quality aluminumSeals perfectly to keep out dirt and moistureCovers come with gasketsHolds clutch cable more securely (Yamaha YZ models)Give your bike the factory "WORKS" lookCover gaskets may be used with stock or factory covers

Cast from the highest quality aluminumSeals perfectly to keep out dirt and moistureCovers come with gasketsHolds clutch cable more securely (Yamaha YZ models)Give your bike the factory "WORKS" lookCover gaskets may be used with stock or factory covers

CYLINDER KITS INCLUDE A NICKEL CARBIDE COATED CYLINDER PORTED TO FACTORY SPECS., SPECIAL HARD ANODIZED EXHAUST VALVES, COMPLETE PISTON KIT AND A TOP END GASKET SETCYLINDER KITS INCLUDE ALL PARTS IN THE KITS PLUS AN ALUMINUM CYLINDER HEAD WITH REMOVABLE...

Athena Cylinder Kit Bb 82Mm 13.8:1 Husq/Ktm P400270100021

Athena Cylinder Kit Bb 102Mm 12.3:1 Yam P400485100068

Feature Koyo and Nachi precision Japanese crank bearingsThe crankshaft seals feature a carbon/fluorocarbon pad on the seal lip and stainless steel garter springsReduces startup friction enhancing dry start performance and reducing crank pin wear

Feature Koyo and Nachi precision Japanese crank bearingsThe crankshaft seals feature a carbon/fluorocarbon pad on the seal lip and stainless steel garter springsReduces startup friction enhancing dry start performance and reducing crank pin wear

Feature Koyo and Nachi precision Japanese crank bearingsThe crankshaft seals feature a carbon/fluorocarbon pad on the seal lip and stainless steel garter springsReduces startup friction enhancing dry start performance and reducing crank pin wear

CNC machined oil filler cap or with aluminum oil dipstickLaser printed ZETA logo

CNC machined from 6061 T-6 aluminumReplaces the stock plastic plugSealing O-ring includedLaser Engraved WC logoMade in the USA