Dirt Bike Engine
4752 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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Shindy - 10-054 - Needle Bearing - 14 mm x 18 mm x 16 mm - Honda/Suzuki
Shindy
$11.95Shindy - NB1461 - Needle Bearing - 14 mm x 18 mm x 16 mm - Honda/SuzukiFeaturesEach bearing is packaged in an individual box for easy identificationSpecs$11.95 -
Shindy - 10-354 - Needle Bearing - 15 mm x 20 mm x 18 mm - Yamaha
Shindy
$14.95Shindy - NB1460 - Needle Bearing - 15 mm x 20 mm x 18 mm - YamahaFeaturesEach bearing is packaged in an individual box for easy identificationSpecs$14.95 -
Shindy - 10-152 - Needle Bearing - 15 mm x 19 mm x 20 mm - Kawasaki/KTM/Suzuki
Shindy
$9.95Shindy - NB1459 - Needle Bearing - 15 mm x 19 mm x 20 mm - Kawasaki/KTM/SuzukiFeaturesEach bearing is packaged in an individual box for easy identificationSpecs$9.95 -
Shindy - 10-251 - Needle Bearing - 16 mm x 21 mm x 19.5 mm - Kawasaki
Shindy
MSRP: $10.20$9.95Shindy - NB1463 - Needle Bearing - 16 mm x 21 mm x 19.5 mm - KawasakiFeaturesEach bearing is packaged in an individual box for easy identificationSpecsMSRP: $10.20$9.95 -
Shindy - 10-353 - Needle Bearing - 14 mm x 18 mm x 16.5 mm - Yamaha
Shindy
MSRP: $8.00$7.95Shindy - NB1464 - Needle Bearing - 14 mm x 18 mm x 16.5 mm - YamahaFeaturesEach bearing is packaged in an individual box for easy identificationSpecsMSRP: $8.00$7.95 -
Shindy - 10-053 - Needle Bearing - 15 mm x 19 mm x 17 mm - Honda/Yamaha
Shindy
MSRP: $9.30$8.95Shindy - NB1458 - Needle Bearing - 15 mm x 19 mm x 17 mm - Honda/YamahaFeaturesEach bearing is packaged in an individual box for easy identificationSpecsMSRP: $9.30$8.95 -
Shindy - 10-051 - Needle Bearing - 14 mm x 18 mm x 19 mm - Honda
Shindy
$8.95Shindy - NB1450 - Needle Bearing - 14 mm x 18 mm x 19 mm - HondaFeaturesEach bearing is packaged in an individual box for easy identificationSpecs$8.95 -
Shindy - 10-352 - Needle Bearing - 16 mm x 20 mm x 19 mm - Yamaha
Shindy
MSRP: $10.20$9.95Shindy - NB1456 - Needle Bearing - 16 mm x 20 mm x 19 mm - YamahaFeaturesEach bearing is packaged in an individual box for easy identificationSpecsMSRP: $10.20$9.95 -
Tmv - 138101012OR - Cam Chain Tensioner - Orange - Gas Gas | KTM
Tmv
$108.95Tmv - 09251323 - Cam Chain Tensioner - Orange - Gas Gas | KTMFeaturesReduces premature engine wear and excess tension caused by automatic tensionersReplaces factory automatic and hydraulic cam chain...$108.95 -
Tmv - 138101012BU - Cam Chain Tensioner - Blue - Gas Gas | Husqvarna - Fits 2021-2022 Gas Gas EC/EX/MC 250F/350F/450F, 2014-2023 Husqvarna FE 250/350/450/501, 2014-2023 Husqvarna FC 250/350/450
Tmv
$108.95Tmv - 09251322 - Cam Chain Tensioner - Blue - Gas Gas | HusqvarnaFeaturesReduces premature engine wear and excess tension caused by automatic tensionersReplaces factory automatic and hydraulic cam...$108.95 -
Sdi - WRFPOR48-PDS - Floating Piston - O-Ring - 48 mm
SDI
$1.95Sdi - 13140758 - Floating Piston - O-Ring - 48 mmFeaturesSpecsRiding StyleStreet$1.95 -
S&S Cycle - 310-1224C - 129" Power Pack - 550 Gear Drive - Oil Cooled - Wrinkle Black w/Highlight Fins - M8
S&S Cycle
MSRP: $3,559.95$3,497.95S&S Cycle - 09040159 - 129" Power Pack - 550 Gear Drive - Oil Cooled - Wrinkle Black w/Highlight Fins - M8FeaturesPowder coat finish matched to factoryMLS (Multi-Layered Steel) head gasketsIncludes...MSRP: $3,559.95$3,497.95 -
Shindy - 03-CG8 - Float Bowl Gasket - Suzuki
Shindy
MSRP: $12.40$11.95Shindy - 10032064 - Float Bowl Gasket - SuzukiFeaturesThickness of gasket meets within 0.05 mm of orginal partSpecsMSRP: $12.40$11.95 -
Prox - 29.748210 - Valve Shims - 7.48 mm x 2.10 mm - 5 pack
Prox
$10.95Prox - 09260888 - Valve Shims - 7.48 mm x 2.10 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748225 - Valve Shims - 7.48 mm x 2.25 mm - 5 pack
Prox
$9.95Prox - 09260891 - Valve Shims - 7.48 mm x 2.25 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$9.95 -
Prox - 29.748160 - Valve Shims - 7.48 mm x 1.60 mm - 5 pack
Prox
$10.95Prox - 09260878 - Valve Shims - 7.48 mm x 1.60 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748155 - Valve Shims - 7.48 mm x 1.55 mm - 5 pack
Prox
$10.95Prox - 09260877 - Valve Shims - 7.48 mm x 1.55 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.100270 - Valve Shim - 10.00 mm x 2.70 mm - 5 pack
Prox
$9.95Prox - 09261007 - Valve Shim - 10.00 mm x 2.70 mm - 5 packFeaturesPrecision machined to match exact sizeSpecsOut$9.95 -
Prox - 29.100260 - Valve Shim - 10.00 mm x 2.60 mm - 5 pack
Prox
$9.95Prox - 09261005 - Valve Shim - 10.00 mm x 2.60 mm - 5 packFeaturesPrecision machined to match exact sizeSpecsPro$9.95 -
Prox - 29.100250 - Valve Shim - 10.00 mm x 2.50 mm - 5 pack
Prox
$10.95Prox - 09261003 - Valve Shim - 10.00 mm x 2.50 mm - 5 packFeaturesPrecision machined to match exact sizeSpecsOut$10.95 -
Prox - 29.100255 - Valve Shim - 10.00 mm x 2.55 mm - 5 pack
Prox
$10.95Prox - 09261004 - Valve Shim - 10.00 mm x 2.55 mm - 5 packFeaturesPrecision machined to match exact sizeSpecsRid$10.95 -
Prox - 29.100320 - Valve Shim - 10.00 mm x 3.20 mm - 5 pack
Prox
$9.95Prox - 09261017 - Valve Shim - 10.00 mm x 3.20 mm - 5 packFeaturesPrecision machined to match exact sizeSpecsRid$9.95 -
Prox - 29.100220 - Valve Shim - 10.00 mm x 2.20 mm - 5 pack
Prox
$9.95Prox - 09260997 - Valve Shim - 10.00 mm x 2.20 mm - 5 packFeaturesPrecision machined to match exact sizeSpecsRid$9.95 -
Prox - 29.748295 - Valve Shims - 7.48 mm x 2.95 mm - 5 pack
Prox
$10.95Prox - 09260905 - Valve Shims - 7.48 mm x 2.95 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748290 - Valve Shims - 7.48 mm x 2.90 mm - 5 pack
Prox
$10.95Prox - 09260904 - Valve Shims - 7.48 mm x 2.90 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.VSA1000 - Valve Shim Kit - 10.00 mm x 1.85 mm - 3.20 mm
Prox
$99.95Prox - 09260989 - Valve Shim Kit - 10.00 mm x 1.85 mm - 3.20 mmFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$99.95 -
Prox - 29.748300 - Valve Shims - 7.48 mm x 3.00 mm - 5 pack
Prox
$10.95Prox - 09260906 - Valve Shims - 7.48 mm x 3.00 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748220 - Valve Shims - 7.48 mm x 2.20 mm - 5 pack
Prox
$10.95Prox - 09260890 - Valve Shims - 7.48 mm x 2.20 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748145 - Valve Shims - 7.48 mm x 1.45 mm - 5 pack
Prox
$10.95Prox - 09260875 - Valve Shims - 7.48 mm x 1.45 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748190 - Valve Shims - 7.48 mm x 1.90 mm - 5 pack
Prox
$10.95Prox - 09260884 - Valve Shims - 7.48 mm x 1.90 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748195 - Valve Shims - 7.48 mm x 1.95 mm - 5 pack
Prox
$10.95Prox - 09260885 - Valve Shims - 7.48 mm x 1.95 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748245 - Valve Shims - 7.48 mm x 2.45 mm - 5 pack
Prox
$10.95Prox - 09260895 - Valve Shims - 7.48 mm x 2.45 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.100290 - Valve Shim - 10.00 mm x 2.90 mm - 5 pack
Prox
$9.95Prox - 09261011 - Valve Shim - 10.00 mm x 2.90 mm - 5 packFeaturesPrecision machined to match exact sizeSpecsOut$9.95 -
Prox - 29.100280 - Valve Shim - 10.00 mm x 2.80 mm - 5 pack
Prox
$9.95Prox - 09261009 - Valve Shim - 10.00 mm x 2.80 mm - 5 packFeaturesPrecision machined to match exact sizeSpecsTyp$9.95 -
Prox - 29.748150 - Valve Shims - 7.48 mm x 1.50 mm - 5 pack
Prox
$10.95Prox - 09260876 - Valve Shims - 7.48 mm x 1.50 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748135 - Valve Shims - 7.48 mm x 1.35 mm - 5 pack
Prox
$10.95Prox - 09260873 - Valve Shims - 7.48 mm x 1.35 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748205 - Valve Shims - 7.48 mm x 2.05 mm - 5 pack
Prox
$10.95Prox - 09260887 - Valve Shims - 7.48 mm x 2.05 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748165 - Valve Shims - 7.48 mm x 1.65 mm - 5 pack
Prox
$10.95Prox - 09260879 - Valve Shims - 7.48 mm x 1.65 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748180 - Valve Shims - 7.48 mm x 1.80 mm - 5 pack
Prox
$10.95Prox - 09260882 - Valve Shims - 7.48 mm x 1.80 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95 -
Prox - 29.748240 - Valve Shims - 7.48 mm x 2.40 mm - 5 pack
Prox
$10.95Prox - 09260894 - Valve Shims - 7.48 mm x 2.40 mm - 5 packFeaturesPrecision machined to match exact sizeInexpensive and easy replacement for expensive OEM shimsSpecs$10.95
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.