Dirt Bike Engine
Explore our selection for dirt bike parts for adding horsepower or reliability to a dirt bike's engine. We feature engine parts from Wiseco, Vertex, and more common engine part manufacturers. Get new pistons and gasket kits for re-freshening engines to withstand any conditions you put your bike through!
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Dirt Bike Cams and Parts
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Dirt Bike Connecting Rods and Parts
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Dirt Bike Crankcases and Parts
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Dirt Bike Crankshafts and Parts
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Dirt Bike Cylinder Heads and Parts
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Dirt Bike Cylinders and Parts
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Dirt Bike Engine Bearings
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Dirt Bike Engine Covers
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Dirt Bike Engine Gaskets and Kits
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Dirt Bike Engine Rebuild Kits
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Dirt Bike Engine Seals - Orings and Kits
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Dirt Bike Engine Valves and Parts
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Dirt Bike Flywheel and Rod Assemblies
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Dirt Bike Fuel Filters
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Dirt Bike Miscellaneous Engine Parts
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Dirt Bike Oil Coolers
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Dirt Bike Oil Filters
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Dirt Bike Oil Lines
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Dirt Bike Oil Pumps
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Dirt Bike Piston and Ring Kits
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Dirt Bike Piston Rings Only
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Dirt Bike Wrist Pins and Circlips
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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WISECO Piston Kit 40091M09500
WISECO
$254.95WISECO Piston Kit 40091M09500Pistons come without gasket kit9103927- SKU:
- 9103927
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.8:1
- DISPLACEMENT:
- 510 CC
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 63.40 MM
- BORE SIZE METRIC:
- 88.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
$254.95 -
WISECO Piston 4713M09000
WISECO
$219.95WISECO Piston 4713M09000Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips4713M09000- SKU:
- 4713M09000
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- BORE - OVERSIZE:
- STANDARD
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- DISPLACEMENT:
- 398 CC
- PISTON DIAMETER METRIC:
- 89.92 MM
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 62.60 MM
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- ATV
- SKIRT COATING:
- ARMORGLIDE®
- BORE SIZE METRIC:
- 90.00 MM
$219.95 -
WISECO Piston 4714M09000
WISECO
$219.95WISECO Piston 4714M09000Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips4714M09000- SKU:
- 4714M09000
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- BORE SIZE METRIC:
- 90.00 MM
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- MODEL:
- FORGED SERIES
- STROKE LENGTH METRIC:
- 62.60 MM
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 398 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 89.92 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
$219.95 -
WISECO Piston 471M06600
WISECO
$159.95WISECO Piston 471M06600Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips471M06600- SKU:
- 471M06600
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 65.95 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 50.00 MM
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 66.00 MM
- DISPLACEMENT:
- 172 CC
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
WISECO Piston 466M06600
WISECO
$199.95WISECO Piston 466M06600Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips466M06600- SKU:
- 466M06600
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PISTON DIAMETER METRIC:
- 65.95 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 72.00 MM
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 66.00 MM
- DISPLACEMENT:
- 246 CC
- MODEL:
- FORGED SERIES
$199.95 -
WISECO Piston Kit - KTM 857M06640
WISECO
$184.95WISECO Piston Kit KTM 857M06640Pistons come without gasket kit9103962- SKU:
- 9103962
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 66.40 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- DISPLACEMENT:
- 249 CC
- STROKE LENGTH METRIC:
- 72.00 MM
$184.95 -
WISECO Piston Kit 874M03950
WISECO
$104.95WISECO Piston Kit 874M03950Pistons come without gasket kit9103963- SKU:
- 9103963
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- DISPLACEMENT:
- 49 CC
- BORE SIZE METRIC:
- 39.50 MM
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 40.00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- PISTON MATERIAL:
- FORGED
$104.95Qty in Cart: 0Quantity:Price:$104.95Subtotal: -
WISECO Piston Kit - KX 85 879M04850
WISECO
$119.95WISECO Piston Kit KX 85 879M04850Pistons come without gasket kit9103964- SKU:
- 9103964
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 85 CC
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 48.50 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- STROKE LENGTH METRIC:
- 45.80 MM
$119.95 -
WISECO Piston Kit - Kawasaki KX 100 880M05250
WISECO
$124.95WISECO Piston Kit Kawasaki KX 100 880M05250Pistons come without gasket kit9103965- SKU:
- 9103965
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 52.50 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 99 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- STROKE LENGTH METRIC:
- 45.80 MM
$124.95 -
WISECO Piston Kit - Kawasaki 40082M09600
WISECO
$239.95WISECO Piston Kit Kawasaki 40082M09600Pistons come without gasket kit9103172- SKU:
- 9103172
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE - OVERSIZE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 62.10 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- BORE SIZE METRIC:
- 96.00 MM
- DISPLACEMENT:
- 449 CC
$239.95 -
WISECO Piston Kit - Racer Elite - TRX450R/ER RE817M09600
WISECO
$379.95WISECO Piston Kit Racer Elite TRX450R/ER RE817M09600R&D developed to provide dyno-proven power gains, Asymmetric skirt design for improved wear and even loading on major thrust skirt, Precision fit ring; custom-lapped compression ring for improved power,...9105126- SKU:
- 9105126
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- BORE SIZE METRIC:
- 96.00 MM
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE METRIC:
- STANDARD
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- RIDING STYLE:
- ATV
$379.95 -
WISECO Piston Kit - Racer Elite - CRF250R RE820M07900
WISECO
$371.41WISECO Piston Kit Racer Elite CRF250R RE820M07900R&D developed to provide dyno-proven power gains, Asymmetric skirt design for improved wear and even loading on major thrust skirt, Precision fit ring; custom-lapped compression ring for improved power,...9105127- SKU:
- 9105127
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE SIZE METRIC:
- 79.00 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORGLIDE®
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 14.5:1
- BORE - OVERSIZE:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$371.41 -
WISECO Piston Kit 885M04350
WISECO
$119.95WISECO Piston Kit 885M04350All Wiseco pistons are forged from aerospace aluminum alloys on Wiseco’s state-of-the-art forging presses, Built on a legacy of championships for over 60 years by American craftsmen, Wiseco pistons have the latest dyno-tested...9105380- SKU:
- 9105380
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 43.50 MM
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$119.95 -
WISECO Piston Kit - Racer Elite RE901M05000
WISECO
$134.95WISECO Piston Kit Racer Elite RE901M05000The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...9105108- SKU:
- 9105108
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- +2,00 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
- BORE - OVERSIZE METRIC:
- +2.00 MM
- BORE SIZE METRIC:
- 50.00 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- UNITS:
- KIT
$134.95 -
WISECO Piston Kit - Racer Elite RE901M05200
WISECO
$186.74WISECO Piston Kit Racer Elite RE901M05200The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...9105109- SKU:
- 9105109
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE METRIC:
- +4.00 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
- BORE - OVERSIZE:
- +4,00 MM
- BORE SIZE METRIC:
- 52.00 MM
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- UNITS:
- KIT
$186.74Qty in Cart: 0Quantity:Price:$186.74Subtotal: -
WISECO Piston Kit - Racer Elite RE901M05300
WISECO
$186.16WISECO Piston Kit Racer Elite RE901M05300The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...9105110- SKU:
- 9105110
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BORE SIZE METRIC:
- 53.00 MM
- PISTON MATERIAL:
- FORGED
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
- BORE - OVERSIZE:
- +5,00 MM
- BORE - OVERSIZE METRIC:
- +5.00 MM
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
- UNITS:
- KIT
$186.16Qty in Cart: 0Quantity:Price:$186.16Subtotal: -
WISECO Piston Kit - Racer Elite RE914M05400
WISECO
$204.95WISECO Piston Kit Racer Elite RE914M05400The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...9105111- SKU:
- 9105111
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
- BORE SIZE METRIC:
- 54.00 MM
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- UNITS:
- KIT
$204.95Qty in Cart: 0Quantity:Price:$204.95Subtotal: -
WISECO Piston Kit - Racer Elite RE914M05600
WISECO
$204.95WISECO Piston Kit Racer Elite RE914M05600The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...9105112- SKU:
- 9105112
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- +2,00 MM
- BORE SIZE METRIC:
- 56.00 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
- BORE - OVERSIZE METRIC:
- +2.00 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- UNITS:
- KIT
$204.95Qty in Cart: 0Quantity:Price:$204.95Subtotal: -
WISECO Piston Kit - Racer Elite RE914M05800
WISECO
$204.95WISECO Piston Kit Racer Elite RE914M05800The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...9105113- SKU:
- 9105113
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE METRIC:
- +4.00 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
- BORE - OVERSIZE:
- +4,00 MM
- BORE SIZE METRIC:
- 58.00 MM
- PISTON MATERIAL:
- FORGED
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 2000 SERIES ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RACER ELITE
- UNITS:
- KIT
$204.95Qty in Cart: 0Quantity:Price:$204.95Subtotal: -
WISECO Piston Kit - Racer Elite RE903M06640
WISECO
$253.95WISECO Piston Kit Racer Elite RE903M06640The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...9105114- SKU:
- 9105114
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
$253.95Qty in Cart: 0Quantity:Price:$253.95Subtotal:
