Dirt Bike Parts
Modern dirt bikes take serious abuse, so the parts on your machine need to match the way you ride. Whether you hit motocross tracks, single-track, or rough enduro terrain, the right dirt bike parts make a huge difference in power, handling, and durability. Riders choose high quality aftermarket components because they outperform stock parts and hold up when the pressure is on. Our selection is built for anyone who wants stronger performance and reliability on every jump, corner, and trail.
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Moose Offroad - 1211-822-50-12 - Rear Sprocket - 50 Tooth - Beta/Gas Gas/Sherco/Suzuki
Moose Offroad
$39.95Moose Offroad - 12111907 - Rear Sprocket - 50 Tooth - Beta/Gas Gas/Sherco/SuzukiFeatures100% machined, no stamping or grindingOptimal tooth thickness results in maximum tooth and chain contactSpecs$39.95 -
Moose Offroad - Steel Rear Sprocket - Yamaha - 50 Tooth
Moose Offroad
$29.95Moose Offroad - 12102134 - Steel Rear Sprocket - Yamaha - 50 ToothFeaturesCNC precision-machined to assure tight tolerancesMachined with lightening holesAttractive bright zinc-plated finishSpecs$29.95 -
Moose Offroad - 1210-300-47-ST - Steel Rear Sprocket - Honda - 47 Tooth
Moose Offroad
$29.95Moose Offroad - 12102097 - Steel Rear Sprocket - Honda - 47 ToothFeaturesCNC precision-machined to assure tight tolerancesMachined with lightening holesAttractive bright zinc-plated finishSpecs$29.95 -
Moose Offroad - Rear Sprocket - 43 Tooth
Moose Offroad
$39.95Moose Offroad - 12112028 - Rear Sprocket - 43 ToothFeatures100% machined, no stamping or grindingOptimal tooth thickness results in maximum tooth and chain contactSpecs$39.95 -
Moose Offroad - In-Line Fuel Filter - Gas-Gas/Husqvarna/KTM - 5-Pack
Moose Offroad
$36.95Moose Offroad - 07070089 - In-Line Fuel Filter - Gas-Gas/Husqvarna/KTM - 5-PackFeaturesFilters should be replaced every year to reduce the need to rebuildThis is a low-cost replacement to the OEM...$36.95 -
Moose Offroad - OEM Fit Radiator Hose Kit - Orange - Gas Gas/KTM
Moose Offroad
$254.95Moose Offroad - 19021591 - OEM Fit Radiator Hose Kit - Orange - Gas Gas/KTMFeaturesMirrors the fitment of standard hoses, while utilizing the highest-quality silicone rubberThree layers of...$254.95 -
Moose Offroad - Clutch Cover - Beta
Moose Offroad
$204.95Moose Offroad - 09401853 - Clutch Cover - BetaFeaturesStronger than OEM coverDissipates heat better than OEM coverHard-coated finish for long-lasting durabilitySpecs$204.95 -
Moose Offroad - Water Pump Cover - Black - Sherco
Moose Offroad
$101.95Moose Offroad - 09401933 - Water Pump Cover - Black - ShercoFeaturesProvides added durability over the stock cast OEM coversUses stock impeller to reduce overall cost of other expensive aftermarket...$101.95 -
Moose Offroad - Race Fit Radiator Hose Kit - Red - Gas Gas
Moose Offroad
$202.95Moose Offroad - 19021727 - Race Fit Radiator Hose Kit - Red - Gas GasFeaturesThree layers of reinforcement fabric offers high burst pressure and provide better debris/crash resistanceManufactured by...$202.95 -
Moose Offroad - OEM Fit Radiator Hose Kit - Blue - Kawasaki
Moose Offroad
$154.95Moose Offroad - 19021668 - OEM Fit Radiator Hose Kit - Blue - KawasakiFeaturesMirrors the fitment of standard hoses, while utilizing the highest-quality silicone rubberThree layers of reinforcement...$154.95 -
Moose Offroad - Brake Caliper Pins
Moose Offroad
$17.95Moose Offroad - 17020644 - Brake Caliper PinsFeaturesMade for OEM applicationsMade by Nissin, the OE manufacturer in JapanSpecs$17.95 -
Pro Circuit - 0351925FP - Ti-6 Pro Exhaust
Pro Circuit
$1,269.95Pro Circuit - 18201882 - Ti-6 Pro ExhaustFeaturesCreated as a full race system, the Ti-6 Pro is designed to increase performance and help professional racers pass AMA/FIM sound regulationsSpecs$1,269.95 -
Fmf - 044460 - 4.1 RCT Exhaust with MegaBomb - Aluminum
FMF
$1,074.99Fmf - 18201931 - 4.1 RCT Exhaust with MegaBomb - AluminumFeaturesShorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering - moving the...$1,074.99 -
Fmf - 045652 - 4.1 RCT Exhaust with MegaBomb - Anodized Titanium
FMF
$1,174.99Fmf - 18201956 - 4.1 RCT Exhaust with MegaBomb - Anodized TitaniumFeaturesShorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering -...$1,174.99 -
Leovince - 14132S - Factory S Slip-on Muffler
LeoVince
$778.95Leovince - 18113155 - Factory S Slip-on MufflerFeaturesCarbon fiber end cap with asymmetric cut outwards and downwards that adds a custom touchCarbon fiber muffler sleeve features a high temperature...$778.95 -
Polisport - 8483700005 - Armadillo Short Head Pipe Guard - Green
Polisport
$68.99Polisport - 18611442 - Armadillo Short Head Pipe Guard - GreenFeaturesFlexible design provides a universal fit for 2-stroke bikesElastomer compound reduces vibrations and noiseResistant to head pipe...$68.99 -
Polisport - 8483800005 - Armadillo Long Head Pipe Guard - Green
Polisport
$75.99Polisport - 18611448 - Armadillo Long Head Pipe Guard - GreenFeaturesElastomer reduces vibrations and noiseResistant to headpipe high temperaturesProvides protection from small impacts and...$75.99 -
Polisport - 8483800004 - Armadillo Long Head Pipe Guard - Red
Polisport
$75.99Polisport - 18611447 - Armadillo Long Head Pipe Guard - RedFeaturesElastomer reduces vibrations and noiseResistant to headpipe high temperaturesProvides protection from small impacts and...$75.99 -
Polisport - 8483800002 - Armadillo Long Head Pipe Guard - Orange
Polisport
$75.99Polisport - 18611445 - Armadillo Long Head Pipe Guard - OrangeFeaturesElastomer reduces vibrations and noiseResistant to headpipe high temperaturesProvides protection from small impacts and...$75.99 -
Polisport - 8483800003 - Armadillo Long Head Pipe Guard - Blue
Polisport
$75.99Polisport - 18611446 - Armadillo Long Head Pipe Guard - BlueFeaturesElastomer reduces vibrations and noiseResistant to headpipe high temperaturesProvides protection from small impacts and...$75.99 -
Polisport - 8483700002 - Armadillo Short Head Pipe Guard - Orange
Polisport
$68.99Polisport - 18611439 - Armadillo Short Head Pipe Guard - OrangeFeaturesFlexible design provides a universal fit for 2-stroke bikesElastomer compound reduces vibrations and noiseResistant to head pipe...$68.99 -
Wsm - 0706-0009 - Plastic T-Fitting - 3/32" - 10-Pack
Wsm
$8.10Wsm - 07060009 - Plastic T-Fitting - 3/32" - 10-PackFeaturesSpecsRiding StyleSnow$8.10 -
Wsm - 10161 - Primer T-Fitting - 1/4" x 1/4" x 1/8" - 10-Pack
Wsm
$7.33Wsm - 10161 - Primer T-Fitting - 1/4" x 1/4" x 1/8" - 10-PackFeaturesSpecsMaterialPlastic$7.33 -
Wsm - 010-841-05PK - Piston Kit - 80.37 mm - Kawasaki
Wsm
$98.28Wsm - 01084105P - Piston Kit - 80.37 mm - KawasakiFeaturesSkirts have a nonabrasive, expansion-retarding MoS2 (Molydenum Disulfide) coating to reduce heat and friction for added power and...$98.28 -
Wsm - 010-821-21 - Top-End Rebuild Kit - 80.25 mm - Original Series - Kawasaki
Wsm
$357.62Wsm - 01082121 - Top-End Rebuild Kit - 80.25 mm - Original Series - KawasakiFeaturesIncludes pistons, rings, pins, clips, racing needle bearings, head and base gaskets, intake and exhaust gasketsSpecs$357.62 -
Wsm - 010-802-14 - Top-End Rebuild Kit - 78.00 mm - Original Series - Yamaha
Wsm
$231.44Wsm - 01080214 - Top-End Rebuild Kit - 78.00 mm - Original Series - YamahaFeaturesIncludes pistons, rings, pins, clips, racing needle bearings, head and base gaskets, intake and exhaust gasketsSpecs$231.44 -
Wsm - 010-802K - Piston Kit - 77.00 mm - Yamaha
Wsm
$81.14Wsm - 010802 - Piston Kit - 77.00 mm - YamahaFeaturesFeatures improved E-clip designContains piston, rings, pin and clipsAdditional rings available separatelyOrder one per cylinder.Replacement Part...$81.14 -
Wsm - 010-457 - Rotary Valve Shaft - Sea-Doo 800
Wsm
$81.18Wsm - 010457 - Rotary Valve Shaft - Sea-Doo 800FeaturesReplacement Part for OEM Number(s):290837352,420837352Specs$81.18 -
Wsm - 003-116 - Seal Carrier - Replacement - Sea Doo
Wsm
$22.85Wsm - 003116 - Seal Carrier - Replacement - Sea DooFeaturesReplacement Part for OEM Number(s):272000012400SpecsP$22.85 -
Wsm - 010-802-05K - Piston Kit - 77.50 mm - Yamaha
Wsm
$81.14Wsm - 01080205 - Piston Kit - 77.50 mm - YamahaFeaturesFeatures improved E-clip designContains piston, rings, pin and clipsAdditional rings available separatelyOrder one per cylinder.Specs$81.14 -
Wsm - 010-453 - Rotary Shaft Spring - Sea-Doo 580/650/720/800
Wsm
$2.79Wsm - 010453 - Rotary Shaft Spring - Sea-Doo 580/650/720/800FeaturesReplacement Part for OEM Number(s):290938810,420938810Specs$2.79 -
Wsm - 010-930-05 - Piston Rings - 70.25 mm - Polaris
Wsm
$28.34Wsm - 01093005 - Piston Rings - 70.25 mm - PolarisFeaturesSpecsBore - Oversize Metric+0.50 mm$28.34 -
Wsm - 010-929-05 - Piston Rings - 80.40 mm - Yamaha
Wsm
$34.43Wsm - 01092905 - Piston Rings - 80.40 mm - YamahaFeaturesSpecsBore - Oversize+0,50 mm$34.43 -
Wsm - 010-933-04 - Piston Rings - 74.75 mm - Polaris
Wsm
$23.31Wsm - 01093304 - Piston Rings - 74.75 mm - PolarisFeaturesSpecsBore - Oversize Metric+0.25 mm$23.31 -
Wsm - 010-842-07K - Piston Kit - 81.00 mm - Kawasaki
Wsm
$89.33Wsm - 09100654 - Piston Kit - 81.00 mm - KawasakiFeaturesFeatures improved E-clip designContains piston, rings, pin and clipsAdditional rings available separatelyOrder one per cylinder.Specs$89.33 -
Wsm - 003-118-01 - Seal Carrier Ring - Sea Doo
Wsm
$54.08Wsm - 48090149 - Seal Carrier Ring - Sea DooFeaturesReplacement Part for OEM Number(s):272000176SpecsUnits<$54.08 -
Wsm - 010-842-05K - Piston Kit - 80.50 mm - Kawasaki
Wsm
$89.33Wsm - 09100653 - Piston Kit - 80.50 mm - KawasakiFeaturesFeatures improved E-clip designContains piston, rings, pin and clipsAdditional rings available separatelyOrder one per cylinder.Specs$89.33 -
Wsm - 010-824-05PK - Piston Kit - 84.50 mm - Sea-Doo
Wsm
$115.96Wsm - 09101268 - Piston Kit - 84.50 mm - Sea-DooFeaturesSkirts have a nonabrasive, expansion-retarding MoS2 (Molydenum Disulfide) coating to reduce heat and friction for added power and longevityMoS2...$115.96 -
Wsm - 010-824-07PK - Piston Kit - 85.00 mm - Sea-Doo
Wsm
$115.96Wsm - 09101269 - Piston Kit - 85.00 mm - Sea-DooFeaturesSkirts have a nonabrasive, expansion-retarding MoS2 (Molydenum Disulfide) coating to reduce heat and friction for added power and longevityMoS2...$115.96 -
Wsm - 010-935-07 - Piston Rings - 85.00 mm - Polaris
Wsm
$36.48Wsm - 09120079 - Piston Rings - 85.00 mm - PolarisFeaturesSpecsBore - Oversize+1,00 mm$36.48
High Performance Dirt Bike and Motocross Components
Every piece of your dirt bike contributes to how confidently you ride. Upgrading to better engine parts, clutch components, and fuel system pieces gives you stronger acceleration and cleaner throttle response when the track gets rough. Suspension upgrades like fork springs, seals, shock components, and linkage parts help your bike stay predictable through whoops, ruts, and landings. Controls matter just as much, so riders improve their cockpit with new handlebars, grips, levers, and foot pegs that boost comfort and precision at high speed.
Performance braking and drive components can completely transform how a dirt bike handles. Rotors, pads, chains, sprockets, wheel bearings, and hardware all play a role in keeping traction consistent and stopping power reliable. Even routine maintenance items like air filters, spark plugs, fluids, cables, and gaskets impact how well your bike performs under load. Quality parts help you ride longer, harder, and with more confidence, whether you are chasing lap times or carving your favorite trails.
Our goal is simple. Give riders access to dirt bike parts that hold up to real riding conditions and deliver true performance gains. When you twist the throttle, charge a jump, or slam into a corner, you should trust that every component on your bike can take the hit and keep going. Explore our full lineup of dirt bike and motocross parts and build a machine that is ready for whatever you throw at it.