Engine

A must have for any new counter balancer or engine case installation or repairIncludes trusted Hot Rods’ bearings for the counter balancer shaft of most modern 4-stroke enginesNote: Does not include water pump bearing or transmission bearings

Hot Rods Bottom End kits include everything needed to complete crankshaft installation.Hot Rods Bottom Ends kits offer you the choice between Hot Rods Heavy Duty OE replacement crankshafts or Hot Rods Heavy Duty Stroker crankshaftsHot Rods main bearings...

WE RACE ON THE TRACK, NOT THE DYNO! Most camshaft designs are developed only on a dyno. Good camshaft designs not only increase power, they also improve throttle response. However, more power and better throttle response is a difficult design problem...

Complete standard bore kitsComplete standard bore high compression kitsComplete Big Bore KitsIncludes cylinder, piston kit and gasketsTop end gasket kit does not include valve stem sealsMatched with vertex pistons to ensure longevity, performance and...

Bronco® offers OEM replacement valves for both ATV and UTV modelsOEM replacement valves are made of durable SUH35B heat resistant steel that also comes with fill Nitride finish for further durability and resistance to corrosionPerformance valves receive...

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

Kit includes replacement outer seal along with any O-rings, snap rings or lock washers required

Includes inner clutch cover gasket, water pump cover gasket and all bearings, seals and washers required to rebuild water pumpMechanical seal included!Meets or exceeds OEM quality

High Quality OEM type replacement valve setsSave $$$ over OEM pricesValve Stem Hard Coated for improved wearMade in JapanSet contains one intake valve and one exhaust valve

Complete rotating and reciprocating rebuild kit including crankshaft assembly, main bearings and seals, pistons and components, and a complete engine gasket kitAll components were developed through extensive research and development on ProX’s in-house...

All parts are made from the highest quality billet aluminumAll parts are polished to a mirror finish and have been fit tested to ensure a quality product

All parts are made from the highest quality billet aluminumAll parts are polished to a mirror finish and have been fit tested to ensure a quality product