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 - Standard 4942M08900
WISECO
$284.95WISECO Piston Kit Standard 4942M08900Pistons come without gasket kit9101674- SKU:
- 9101674
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- DISPLACEMENT:
- 448 CC
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 89.00 MM
- SKIRT COATING:
- MOLY COATED
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$284.95Qty in Cart: 0Quantity:Price:$284.95Subtotal: -
WISECO Piston Kit - Standard - YZ 250 F 4952M07700
WISECO
$194.72WISECO Piston Kit Standard YZ 250 F 4952M07700Pistons come without gasket kit9101678- SKU:
- 9101678
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$194.72Qty in Cart: 0Quantity:Price:$194.72Subtotal: -
WISECO Piston Kit - Standard - YZ 125 594M05600
WISECO
$154.95WISECO Piston Kit Standard YZ 125 594M05600Pistons come without gasket kit9101681- SKU:
- 9101681
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 56.00 MM
- PRODUCT NAME:
- PISTON
- DISPLACEMENT:
- 124 CC
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 50.70 MM
- UNITS:
- EACH
$154.95 -
WISECO Piston Kit - Standard - KTM 360 SX 747M07800
WISECO
$244.95WISECO Piston Kit Standard KTM 360 SX 747M07800Pistons come without gasket kit9101694- SKU:
- 9101694
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- BORE SIZE METRIC:
- 78.00 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- GP STYLE
- STROKE LENGTH METRIC:
- 74.00 MM
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 353 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$244.95 -
WISECO Piston Kit - Standard - RM 125 836M05800
WISECO
$199.95WISECO Piston Kit Standard RM 125 836M05800Pistons come without gasket kit9101696- SKU:
- 9101696
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 54.00 MM
- BORE SIZE METRIC:
- 58.00 MM
- DISPLACEMENT:
- 125 CC
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$199.95 -
WISECO Piston Kit - Standard 850M07200
WISECO
$244.95WISECO Piston Kit Standard 850M07200Pistons come without gasket kit9101699- SKU:
- 9101699
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- DISPLACEMENT:
- 293 CC
- RIDING STYLE:
- STREET
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE SIZE METRIC:
- 72.00 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
$244.95 -
WISECO Piston Kit - Standard - CR250R 860M06640
WISECO
$234.95WISECO Piston Kit Standard CR250R 860M06640Pistons come without gasket kit9100737- SKU:
- 9100737
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- DISPLACEMENT:
- 249 CC
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE SIZE METRIC:
- 66.40 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$234.95 -
WISECO Piston Kit with Gaskets PK1359
WISECO
$344.95WISECO Piston Kit with Gaskets PK1359Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, Complete piston kits include High-Performance forged pistons, rings, wrist pins, circlips...9030564- SKU:
- 9030564
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- BORE SIZE METRIC:
- 95.00 MM
- MODEL:
- FORGED SERIES
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 449 CC
- PISTON DIAMETER METRIC:
- 94.94 MM
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 63.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
$344.95 -
WISECO Piston Kit - +0.50 mm - Z50R 4828M03950
WISECO
$120.87WISECO Piston Kit +0.50 mm Z50R 4828M03950Pistons come without gasket kit9100739- SKU:
- 9100739
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE SIZE METRIC:
- 39.50 MM
- RIDING STYLE:
- STREET
- STROKE LENGTH METRIC:
- 41.40 MM
- BORE - OVERSIZE:
- +0,50 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- DISPLACEMENT:
- 50,7 CC
- BORE - OVERSIZE METRIC:
- +0.50 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$120.87Qty in Cart: 0Quantity:Price:$120.87Subtotal: -
WISECO Piston Kit - Standard - XR70 4880M04700
WISECO
$134.95WISECO Piston Kit Standard XR70 4880M04700Pistons come without gasket kit9100747- SKU:
- 9100747
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BORE SIZE METRIC:
- 47.00 MM
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 41.40 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- DISPLACEMENT:
- 72 CC
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$134.95 -
WISECO Piston Kit with Gaskets PK1399
WISECO
$324.95WISECO Piston Kit with Gaskets PK1399Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, Complete piston kits include High-Performance forged pistons, rings, wrist pins, circlips...9030569- SKU:
- 9030569
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- BORE SIZE METRIC:
- 95.50 MM
- MODEL:
- FORGED SERIES
- ENGINE TYPE:
- 4-STROKE
- TYPE:
- TOP END
- DISPLACEMENT:
- 450 CC
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 62.80 MM
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- PISTON DIAMETER METRIC:
- 95.44 MM
- PRODUCT NAME:
- REBUILD KIT
- SKIRT COATING:
- ARMORGLIDE®
$324.95 -
WISECO Piston Kit - Standard - XR70 4880M04800
WISECO
$134.95WISECO Piston Kit Standard XR70 4880M04800Pistons come without gasket kit9100749- SKU:
- 9100749
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- DISPLACEMENT:
- 75 CC
- DISPLACEMENT:
- 72 CC
- STROKE LENGTH METRIC:
- 41.40 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 48.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$134.95 -
WISECO Piston Kit with Gaskets PK1224
WISECO
$274.95WISECO Piston Kit with Gaskets PK1224Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, Complete piston kits include High-Performance forged pistons, rings, wrist pins, circlips...9030571- SKU:
- 9030571
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- BORE - OVERSIZE METRIC:
- +5.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 59.50 MM
- TYPE:
- TOP END
- PISTON DIAMETER METRIC:
- 77.95 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE - OVERSIZE:
- +5,00 MM
- BORE SIZE METRIC:
- 78.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- DISPLACEMENT:
- 250 CC
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
$274.95 -
WISECO Piston Kit with Gaskets PK1388
WISECO
$364.95WISECO Piston Kit with Gaskets PK1388Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, Complete piston kits include High-Performance forged pistons, rings, wrist pins, circlips...9030572- SKU:
- 9030572
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- BORE SIZE METRIC:
- 96.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- DISPLACEMENT:
- 449 CC
- SKIRT COATING:
- ARMORGLIDE®
- PISTON MATERIAL:
- 2618 ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH METRIC:
- 62.10 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 95.94 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
$364.95 -
WISECO Piston Kit - +2.00 mm - XR80/R/CRF80F 4665M04950
WISECO
$169.95WISECO Piston Kit +2.00 mm XR80/R/CRF80F 4665M04950Pistons come without gasket kit9100327- SKU:
- 9100327
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE - OVERSIZE:
- +2,00 MM
- BORE SIZE METRIC:
- 49.50 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- +2.00 MM
- DISPLACEMENT:
- 87 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 45.00 MM
- UNITS:
- EACH
$169.95 -
WISECO Piston Kit - +1.00 mm - XR100/R/CRF100F 4666M05400
WISECO
$154.95WISECO Piston Kit +1.00 mm XR100/R/CRF100F 4666M05400Pistons come without gasket kit9100329- SKU:
- 9100329
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BORE - OVERSIZE METRIC:
- +1.00 MM
- COMPRESSION RATIO IMPERIAL:
- 9.4:1
- BORE - OVERSIZE:
- +1,00 MM
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 54.00 MM
- DISPLACEMENT:
- 103,00 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 45.00 MM
$154.95 -
WISECO Piston - Suzuki - Standard 405M06700
WISECO
$198.42WISECO Piston Suzuki Standard 405M06700Forged 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...405M06700- SKU:
- 405M06700
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$198.42Qty in Cart: 0Quantity:Price:$198.42Subtotal: -
WISECO Piston - Suzuki - .50mm 405M06750
WISECO
$199.95WISECO Piston Suzuki .50mm 405M06750Forged 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...405M06750- SKU:
- 405M06750
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE SIZE METRIC:
- 67.50 MM
- DISPLACEMENT:
- 246 CC
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 70.00 MM
- PISTON DIAMETER METRIC:
- 67.44 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$199.95 -
WISECO Piston - Suzuki - 1.0mm 405M06800
WISECO
$198.42WISECO Piston Suzuki 1.0mm 405M06800Forged 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...405M06800- SKU:
- 405M06800
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE SIZE METRIC:
- 68.00 MM
- PISTON DIAMETER METRIC:
- 67.94 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 70.00 MM
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 246 CC
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- NON-COATED
$198.42Qty in Cart: 0Quantity:Price:$198.42Subtotal: -
WISECO Piston Kit - Yamaha YZ250F 4982M08300
WISECO
$279.95WISECO Piston Kit Yamaha YZ250F 4982M08300Pistons come without gasket kit9102936- SKU:
- 9102936
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- STROKE LENGTH METRIC:
- 53.60 MM
- BORE - OVERSIZE:
- +6,00 MM
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- +6.00 MM
- BORE SIZE METRIC:
- 83.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- DISPLACEMENT:
- 250 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
$279.95
