Dirt Bike Engine
5140 parts
Pistons, top-end kits, gaskets, cylinders, valves, bearings and seals from Vertex, ProX, Wossner, Athena, Cometic, WSM, Boyesen and Moose Offroad. Everything you need for a fresh top end, a full rebuild or a little more power. Shop all dirt bike parts.
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Vertex - 710273 - Full Top End Set - Arctic Cat
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$97.37Vertex - 09340311 - Full Top End Set - Arctic CatFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany...$97.37 -
Vertex - 711295 - Complete Gasket Set - Arctic Cat
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$190.88Vertex - 09341278 - Complete Gasket Set - Arctic CatFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets...$190.88 -
Vertex - 711278 - Complete Gasket Set - Ski-Doo
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$138.78Vertex - 09340305 - Complete Gasket Set - Ski-DooFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$138.78 -
Vertex - 711275 - Complete Gasket Set - Arctic Cat
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$131.17Vertex - 09340295 - Complete Gasket Set - Arctic CatFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets...$131.17 -
Vertex - 710265 - Full Top End Set - Polaris
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$79.97Vertex - 09340300 - Full Top End Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$79.97 -
Vertex - 711270 - Complete Gasket Set - Arctic Cat
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$66.67Vertex - 09340294 - Complete Gasket Set - Arctic CatFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets...$66.67 -
Vertex - 710251 - Full Top End Set - Polaris
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$82.25Vertex - 09340299 - Full Top End Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$82.25 -
Vertex - 715372 - Wrist Pin - Multiple Models
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$10.45Vertex - 09130038 - Wrist PinFeaturesCoating wrist pins with a nitride coating is advantageous because it allows the desired surface hardness to be obtained without quenching and possibly distorting...$10.45 -
Vertex - 22983B - Piston Kit - 77.96 mm - Honda CRF250R/X
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$242.95Vertex - 09101043 - Piston Kit - 77.96 mm - Honda CRF250R/XFeaturesThe piston skirt is treated with a Molybdenum Disulphite coating for a faster break-in time and increased piston lifeForged replica...$242.95 -
Vertex - 711215 - Complete Gasket Set - Ski-Doo
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$110.62Vertex - 711215 - Complete Gasket Set - Ski-DooFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$110.62 -
Vertex - 711210 - Complete Gasket Set - Sea-Doo
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$50.58Vertex - 711210 - Complete Gasket Set - Sea-DooFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$50.58 -
Vertex - 711190 - Complete Gasket Set - Arctic Cat
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$87.83Vertex - 711190 - Complete Gasket Set - Arctic CatFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$87.83 -
Vertex - 711173 - Complete Gasket Set - Polaris
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$52.08Vertex - 711173 - Complete Gasket Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$52.08 -
Vertex - 711185A - Complete Gasket Set - Polaris
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$73.72Vertex - 711185A - Complete Gasket Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$73.72 -
Vertex - 711048B - Complete Gasket Set - John Deere/Kawasaki
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$47.28Vertex - 711048B - Complete Gasket Set - John Deere/KawasakiFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets...$47.28 -
Vertex - 711178C - Complete Gasket Set - Ski-Doo
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$78.38Vertex - 711178C - Complete Gasket Set - Ski-DooFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$78.38 -
Vertex - 711109C - Complete Gasket Set - Polaris
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$71.63Vertex - 711109C - Complete Gasket Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$71.63 -
Vertex - 710247 - Full Top End Set - Yamaha
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$119.45Vertex - 710247 - Full Top End Set - YamahaFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$119.45 -
Vertex - 711171 - Complete Gasket Set - Yamaha
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$68.92Vertex - 711171 - Complete Gasket Set - YamahaFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$68.92 -
Vertex - 711168B - Complete Gasket Set - Yamaha
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$54.42Vertex - 711168B - Complete Gasket Set - YamahaFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$54.42 -
Vertex - 710216 - Full Top End Set - Arctic Cat
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$100.03Vertex - 710216 - Full Top End Set - Arctic CatFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany...$100.03 -
Vertex - 711048A - Complete Gasket Set - John Deere
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$47.28Vertex - 711048A - Complete Gasket Set - John DeereFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyKit...$47.28 -
Vertex - 710230 - Full Top End Set - Polaris
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$83.78Vertex - 710230 - Full Top End Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$83.78 -
Vertex - 710235 - Full Top End Set - Ski-Doo
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$65.37Vertex - 710235 - Full Top End Set - Ski-DooFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$65.37 -
Vertex - 710206 - Full Top End Set - Polaris
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$100.03Vertex - 710206 - Full Top End Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$100.03 -
Vertex - 710214 - Full Top End Set - Ski-Doo
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$65.47Vertex - 710214 - Full Top End Set - Ski-DooFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$65.47 -
Vertex - 710215 - Full Top End Set - Ski-Doo
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$59.62Vertex - 710215 - Full Top End Set - Ski-DooFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$59.62 -
Vertex - 710189 - Full Top End Set - Arctic Cat
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$49.58Vertex - 710189 - Full Top End Set - Arctic CatFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany...$49.58 -
Vertex - 710188 - Full Top End Set - Arctic Cat
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$50.50Vertex - 710188 - Full Top End Set - Arctic CatFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany...$50.50 -
Vertex - 710187 - Full Top End Set - Polaris
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$83.75Vertex - 710187 - Full Top End Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$83.75 -
Vertex - 710186 - Full Top End Set - Polaris
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$47.92Vertex - 710186 - Full Top End Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$47.92 -
Vertex - 710167 - Full Top End Set - Yamaha
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$40.25Vertex - 710167 - Full Top End Set - YamahaFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$40.25 -
Vertex - 710204 - Full Top End Set - Polaris
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$131.88Vertex - 710204 - Full Top End Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$131.88 -
Vertex - 710181A - Full Top End Set - Polaris
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$76.00Vertex - 710181A - Full Top End Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$76.00 -
Vertex - 710200 - Full Top End Set - Yamaha
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$82.25Vertex - 710200 - Full Top End Set - YamahaFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$82.25 -
Vertex - 710180 - Full Top End Set - Arctic Cat
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$60.42Vertex - 710180 - Full Top End Set - Arctic CatFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany...$60.42 -
Vertex - 710150 - Full Top End Set - Kawasaki/John Deere
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$50.50Vertex - 710150 - Full Top End Set - Kawasaki/John DeereFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets...$50.50 -
Vertex - 710112 - Full Top End Set - Kawasaki/John Deere
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$40.25Vertex - 710112 - Full Top End Set - Kawasaki/John DeereFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets...$40.25 -
Vertex - 710110A - Full Top End Set - Polaris
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$46.97Vertex - 710110A - Full Top End Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$46.97 -
Vertex - 710109C - Full Top End Set - Polaris
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$58.62Vertex - 710109C - Full Top End Set - PolarisFeaturesFit most current and many non-current engines, including Sachs, JLO, Hirth, CCW, Kohler and XenoahDesigned to replace OEM gaskets exactlyMany kit...$58.62
Dirt Bike Pistons, Top-End Kits and Engine Rebuild Parts
Every dirt bike engine needs a refresh eventually. Ride long enough and the piston wears, compression drops and the bike just doesn't pull like it used to. Staying on top of top-end maintenance keeps your bike making power and keeps a cheap rebuild from turning into an expensive one.
We carry pistons and complete top-end kits from Vertex, Wossner, ProX and Athena, full gasket sets from Cometic and Athena, plus valves, springs, cam chains, bearings, seals and crank kits for full rebuilds. Boyesen reed valves and engine covers add performance and protection on two-strokes and four-strokes alike.
While the engine is apart, refresh the rest: fresh air filters and carb parts from fuel and intake, oil filters and fluids from oils and chemicals, and repacking or a new pipe from dirt bike exhaust.
Engine parts are specific to make, model, year and sometimes bore size, so check fitment carefully before ordering. If you're not sure what your rebuild needs, send us your bike's details and we'll help put the parts list together.