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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- Price
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Prox - 03.7315 - Connecting Rod Kit - Beta
Prox
$251.95Prox - 09230710 - Connecting Rod Kit - BetaFeaturesEasy to installSpecsEngine Type4-StrokeMaterialForged SteelRiding StyleAdventure Touring / Dual-SportRiding StyleStreetProduct NameConnecting Rod KitRiding StyleOff-RoadUnitsEachFitment2017-2020,...$251.95 -
Prox - 03.4424 - Connecting Rod Kit - Kawasaki
Prox
$239.95Prox - 09230708 - Connecting Rod Kit - KawasakiFeaturesEasy to installSpecsUnitsEachEngine Type4-StrokeRiding StyleOff-RoadMaterialForged SteelProduct NameConnecting Rod KitFitment2024-2025KawasakiKX4502024-2025KawasakiKX450X$239.95 -
Prox - 23.CBS60013 - Crankshaft Bearing/Seal Kit - Gas Gas/Husqvarna/KTM
Prox
$38.95Prox - 09240688 - Crankshaft Bearing/Seal Kit - Gas Gas/Husqvarna/KTMFeaturesMade to exact OEM specifications, to ensure maximum quality and performanceIncludes all necessary bearings/seals for a component’s replacementProX bearings offer high durability...$38.95 -
Prox - 01.4424.B - Piston Kit - 95.98 mm - Kawasaski
Prox
$221.95Prox - 09106898 - Piston Kit - 95.98 mm - KawasaskiFeaturesKit includes a precision-machined piston, wrist pin, circlips, and high-performance piston ringsMade with low expansion, low friction alloySpecsProduct NamePiston KitDisplacement450 ccBore Size...$221.95 -
Prox - 03.7319 - Connecting Rod Kit - Beta
Prox
$173.95Prox - 09230711 - Connecting Rod Kit - BetaFeaturesEasy to installSpecsProduct NameConnecting Rod KitRiding StyleStreetUnitsEachRiding StyleAdventure Touring / Dual-SportEngine Type4-StrokeMaterialForged SteelRiding StyleOff-RoadFitment2018-2019Beta250...$173.95 -
Prox - 01.4424.A - Piston Kit - 95.97 mm - Kawasaski
Prox
$221.95Prox - 09106896 - Piston Kit - 95.97 mm - KawasaskiFeaturesKit includes a precision-machined piston, wrist pin, circlips, and high-performance piston ringsMade with low expansion, low friction alloySpecsBore - OversizeStandardEngine Type4-StrokeRiding...$221.95 -
Prox - 01.4355.B - Piston Kit - 77.97 mm - Kawasaki
Prox
$188.95Prox - 09106897 - Piston Kit - 77.97 mm - KawasakiFeaturesKit includes a precision-machined piston, wrist pin, circlips, and high-performance piston ringsMade with low expansion, low friction alloySpecsBore - Oversize MetricStandardPiston Size Metric77...$188.95 -
Prox - 26.710108 - Wheel Spacer Kit - Front - KX 250/450
Prox
$35.95Prox - 02220726 - Wheel Spacer Kit - Front - KX 250/450FeaturesComplete and direct replacement for the OEM partsSpecsTypeWheelColor/FinishSilverProduct NameSpacerUnitsKitRiding StyleOff-RoadMaterialAlloy SteelBase FinishRawColor/FinishRawMounting...$35.95 -
Prox - 01.4355.A - Piston Kit - 77.96 mm - Kawasaki
Prox
$188.95Prox - 09106895 - Piston Kit - 77.96 mm - KawasakiFeaturesKit includes a precision-machined piston, wrist pin, circlips, and high-performance piston ringsMade with low expansion, low friction alloySpecsEngine Type4-StrokeDisplacement250 ccPiston Size...$188.95 -
Prox - 26.710107 - Wheel Spacer Kit - Front - YZ 250/450F
Prox
$25.95Prox - 02220725 - Wheel Spacer Kit - Front - YZ 250/450FFeaturesComplete and direct replacement for the OEM partsSpecsColor/FinishRawTypeWheelMounting PositionFrontRiding StyleOff-RoadColor/FinishSilverProduct NameSpacerUnitsKitBase FinishRawBase...$25.95 -
Prox - 03.2453 - Connecting Rod Kit - Yamaha
Prox
$239.95Prox - 09230707 - Connecting Rod Kit - YamahaFeaturesEasy to installSpecsUnitsEachEngine Type4-StrokeProduct NameConnecting Rod KitRiding StyleOff-RoadMaterialForged SteelFitment2023-2025YamahaYZ450F2024-2025YamahaYZ450FX2024-2025YamahaWR450F$239.95 -
Prox - 34.4429 - Complete Gasket Set - Kawasaki
Prox
$178.95Prox - 09348071 - Complete Gasket Set - KawasakiFeaturesSpecsEngine Type4-StrokeRiding StyleOff-RoadTypeCompleteProduct NameGasket SetUnitsSetFitment2019-2020KawasakiKX450F$178.95 -
Prox - 01.6348.B - Piston Kit - 80.97 mm - Gas Gas | Husqvarna | KTM
Prox
$232.95Prox - 09106576 - Piston Kit - 80.97 mm - Gas Gas | Husqvarna | KTMFeaturesKit includes a precision-machined piston, wrist pin, circlips, and high-performance piston ringsMade with low expansion, low friction alloySpecsBore - Oversize...$232.95 -
Prox - 34.4319 - Complete Gasket Set - Kawasaki
Prox
$168.95Prox - 09348083 - Complete Gasket Set - KawasakiFeaturesSpecsRiding StyleOff-RoadTypeCompleteUnitsSetEngine Type2-StrokeProduct NameGasket SetFitment2019-2020KawasakiKX250$168.95 -
Motion Pro - 12-0019 - Fuel Line Fittings - T-Connector - 1/4" - 10-Pack
Motion Pro
$48.99Motion Pro - P12019 - Fuel Line Fittings - T-Connector - 1/4" - 10-PackFeaturesMay be used with O-Clips or hose clampsDouble ear O-clips are easy to installFor use in low-pressure applicationsSnag-free, smooth, polished finishStrong, positive clamping...$48.99 -
Motion Pro - 12-0015 - Fuel Line Fittings - Y-Connector - 1/4" - 10-Pack
Motion Pro
$45.99Motion Pro - P12015 - Fuel Line Fittings - Y-Connector - 1/4" - 10-PackFeaturesMay be used with O-Clips or hose clampsDouble ear O-clips are easy to installFor use in low-pressure applicationsSnag-free, smooth, polished finishStrong, positive clamping...$45.99 -
Motion Pro - 12-0016 - Fuel Line Fittings - Y-Connector- 5/16" - 10-Pack
Motion Pro
$65.99Motion Pro - P12016 - Fuel Line Fittings - Y-Connector- 5/16" - 10-PackFeaturesMay be used with O-Clips or hose clampsDouble ear O-clips are easy to installFor use in low-pressure applicationsSnag-free, smooth, polished finishStrong, positive clamping...$65.99 -
Ngk Spark Plugs - 7067 - Iridium IX Spark Plug - BR7HIX
NGK Spark Plugs
$14.95Ngk Spark Plugs - BR7HIX - Iridium IX Spark Plug - BR7HIXFeaturesThe iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrodeUltra-small diameter center electrode reduces voltage...$14.95 -
Ngk Spark Plugs - 7001 - Iridium IX Spark Plug - BR8HIX
NGK Spark Plugs
$14.95Ngk Spark Plugs - BR8HIX - Iridium IX Spark Plug - BR8HIXFeaturesThe iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrodeUltra-small diameter center electrode reduces voltage...$14.95 -
Ngk Spark Plugs - 5110 - Spark Plug - B7HS
NGK Spark Plugs
$4.95Ngk Spark Plugs - B7HS - Spark Plug - B7HSFeaturesPure alumina silicate ceramic insulator, provides superior strength and better heat transferTriple seals prevent leakageCorrugated ribs prevent flashoverCopper core aids in heat removalSpecsGround...$4.95 -
Motion Pro - 12-0018 - Fuel Line Fittings - T-Connector- 3/16" - 10-Pack
Motion Pro
$48.99Motion Pro - P12018 - Fuel Line Fittings - T-Connector- 3/16" - 10-PackFeaturesMay be used with O-Clips or hose clampsDouble ear O-clips are easy to installFor use in low-pressure applicationsSnag-free, smooth, polished finishStrong, positive clamping...$48.99 -
Ngk Spark Plugs - 4122 - Spark Plug - BR7HS
NGK Spark Plugs
$4.95Ngk Spark Plugs - BR7HS - Spark Plug - BR7HSFeaturesPure alumina silicate ceramic insulator, provides superior strength and better heat transferTriple seals prevent leakageCorrugated ribs prevent flashoverCopper core aids in heat removalSpecsProduct...$4.95 -
Ngk Spark Plugs - 4322 - Spark Plug - BR8HS
NGK Spark Plugs
$4.95Ngk Spark Plugs - BR8HS - Spark Plug - BR8HSFeaturesPure alumina silicate ceramic insulator, provides superior strength and better heat transferTriple seals prevent leakageCorrugated ribs prevent flashoverCopper core aids in heat removalSpecsHeat...$4.95 -
Parts Unlimited - Front Fork Seals - 33 mm ID x 46 mm OD x 10.5 mm T
Parts Unlimited
$10.15Parts Unlimited - FS007 - Front Fork Seals - 33 mm ID x 46 mm OD x 10.5 mm TFeaturesMade to OEM specificationsMost performance models available in "NOK" anti-stiction material.SpecsInside Diameter Metric33.00 mmRiding StyleOff-RoadThickness Metric10.50...$10.15 -
Parts Unlimited - Front Fork Seals - 36 mm ID x 48 mm OD x 10.5 mm T
Parts Unlimited
$11.17Parts Unlimited - FS013 - Front Fork Seals - 36 mm ID x 48 mm OD x 10.5 mm TFeaturesMade to OEM specificationsMost performance models available in "NOK" anti-stiction material.SpecsRiding StyleStreetMaterialRubberInside Diameter Metric36.00 mmRiding...$11.17 -
Ngk Spark Plugs - 6801 - Iridium IX Spark Plug - BR10EIX
NGK Spark Plugs
$14.95Ngk Spark Plugs - BR10EIX - Iridium IX Spark Plug - BR10EIXFeaturesThe iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrodeUltra-small diameter center electrode reduces voltage...$14.95 -
Parts Unlimited - Front Fork Seals - 30 mm ID x 42 mm OD x 10.5 mm T
Parts Unlimited
$14.23Parts Unlimited - FS038 - Front Fork Seals - 30 mm ID x 42 mm OD x 10.5 mm TFeaturesMade to OEM specificationsMost performance models available in "NOK" anti-stiction material.SpecsOutside Diameter Metric42.00 mmInside Diameter Metric30.00...$14.23 -
Parts Unlimited - Front Fork Seals - 41 mm ID x 53 mm OD x 10.5 mm T
Parts Unlimited
$12.19Parts Unlimited - FS032 - Front Fork Seals - 41 mm ID x 53 mm OD x 10.5 mm TFeaturesMade to OEM specificationsMost performance models available in "NOK" anti-stiction material.SpecsRiding StyleATVRiding StyleOff-RoadInside Diameter Metric41.00 mmOutside...$12.19 -
Parts Unlimited - Front Fork Seals - 39 mm ID x 52 mm OD x 11 mm T
Parts Unlimited
$13.21Parts Unlimited - FS020 - Front Fork Seals - 39 mm ID x 52 mm OD x 11 mm TFeaturesMade to OEM specificationsMost performance models available in "NOK" anti-stiction material.SpecsProduct NameSealRiding StyleOff-RoadTypeForkUnitsPairInside Diameter...$13.21 -
Parts Unlimited - Front Fork Seals - 35 mm ID x 48 mm OD x 11 mm T
Parts Unlimited
$12.19Parts Unlimited - FS011 - Front Fork Seals - 35 mm ID x 48 mm OD x 11 mm TFeaturesMade to OEM specificationsMost performance models available in "NOK" anti-stiction material.SpecsRiding StyleOff-RoadMaterialRubberTypeForkOutside Diameter Metric48.00...$12.19 -
Ngk Spark Plugs - 3419 - Iridium IX Spark Plug - BR6HIX
NGK Spark Plugs
$14.95Ngk Spark Plugs - BR6HIX - Iridium IX Spark Plug - BR6HIXFeaturesThe iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrodeUltra-small diameter center electrode reduces voltage...$14.95 -
Parts Unlimited - Battery - 12N7-3B
Parts Unlimited
$40.39Parts Unlimited - 21130145 - Battery - 12N7-3BFeaturesMeet or exceed OEM specificationsFeature an impact- and vibration-resistant polypropylene case and coverFiberglass separators improve acid flowKit includes battery, pre-measured acid pack, red filler...$40.39 -
Parts Unlimited - Battery - 12N14-3A
Parts Unlimited
$51.07Parts Unlimited - 21130137 - Battery - 12N14-3AFeaturesMeet or exceed OEM specificationsFeature an impact- and vibration-resistant polypropylene case and coverFiberglass separators improve acid flowKit includes battery, pre-measured acid pack, red filler...$51.07 -
Ngk Spark Plugs - 3810 - Spark Plug - B8S
NGK Spark Plugs
$5.95Ngk Spark Plugs - B8S - Spark Plug - B8SFeaturesPure alumina silicate ceramic insulator, provides superior strength and better heat transferTriple seals prevent leakageCorrugated ribs prevent flashoverCopper core aids in heat removalSpecsProduct...$5.95 -
Ngk Spark Plugs - 2522 - Spark Plug - BUHX
NGK Spark Plugs
$9.95Ngk Spark Plugs - BUHX - Spark Plug - BUHXFeaturesPure alumina silicate ceramic insulator, provides superior strength and better heat transferTriple seals prevent leakageCorrugated ribs prevent flashoverCopper core aids in heat removalSpecsGround...$9.95 -
Ngk Spark Plugs - 5545 - Iridium IX Spark Plug - DPR9EIX-9
NGK Spark Plugs
$14.95Ngk Spark Plugs - DPR9EIX9 - Iridium IX Spark Plug - DPR9EIX-9FeaturesThe iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrodeUltra-small diameter center electrode reduces voltage...$14.95 -
Ngk Spark Plugs - 4832 - Spark Plug - BR10ES
NGK Spark Plugs
$4.95Ngk Spark Plugs - BR10ES - Spark Plug - BR10ESFeaturesPure alumina silicate ceramic insulator, provides superior strength and better heat transferTriple seals prevent leakageCorrugated ribs prevent flashoverCopper core aids in heat removalSpecsElectrical...$4.95 -
Ngk Spark Plugs - 4548 - Spark Plug - CR9EK
NGK Spark Plugs
$17.95Ngk Spark Plugs - CR9EK - Spark Plug - CR9EKFeaturesPure alumina silicate ceramic insulator, provides superior strength and better heat transferTriple seals prevent leakageCorrugated ribs prevent flashoverCopper core aids in heat removalSpecsThread Reach...$17.95 -
Out of stock
Namz - NS-1500-0106 - MT/HM Series Terminal - Female - 50 Pack
NAMZ
$22.95Namz - 21200492 - MT/HM Series Terminal - Female - 50 PackFeaturesSpecsUnits50 PackConnector Pin Count1 PinWire Gauge20-14 AWGProduct NameFemale TerminalColor/FinishGrayConnector TypeHMConnector GenderFemaleRiding StyleStreet$22.95 -
Ngk Spark Plugs - 3923 - Spark Plug - BPR8ES
NGK Spark Plugs
$10.95Ngk Spark Plugs - BPR8ES - Spark Plug - BPR8ESFeaturesPure alumina silicate ceramic insulator, provides superior strength and better heat transferTriple seals prevent leakageCorrugated ribs prevent flashoverCopper core aids in heat removalSpecsRiding...$10.95
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.