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 - XR/XRL250 4466M07700
WISECO
$219.95WISECO Piston Kit XR/XRL250 4466M07700Pistons come without gasket kit9100754- SKU:
- 9100754
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- DISPLACEMENT:
- 250 CC
- BORE - OVERSIZE:
- +4,00 MM
- BORE - OVERSIZE METRIC:
- +4.00 MM
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 77.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- ENGINE TYPE:
- 4-STROKE
- UNITS:
- EACH
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 59.50 MM
$219.95 -
WISECO Piston Kit - XR/XRL250 4466M07800
WISECO
$219.95WISECO Piston Kit XR/XRL250 4466M07800Pistons come without gasket kit9100755- SKU:
- 9100755
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE - OVERSIZE:
- +5,00 MM
- BORE SIZE METRIC:
- 78.00 MM
- DISPLACEMENT:
- 250 CC
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE METRIC:
- +5.00 MM
- PRODUCT NAME:
- PISTON
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 59.50 MM
- UNITS:
- EACH
$219.95 -
WISECO Piston Kit - Standard - CRF250 4852M07800
WISECO
$264.95WISECO Piston Kit Standard CRF250 4852M07800Pistons come without gasket kit9100756- SKU:
- 9100756
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- BORE SIZE METRIC:
- 78.00 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- ARMORGLIDE®
- DISPLACEMENT:
- 249 CC
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 52.20 MM
- UNITS:
- EACH
$264.95 -
WISECO Piston Kit - XR400 4794M08900
WISECO
$249.95WISECO Piston Kit XR400 4794M08900Pistons come without gasket kit9100757- SKU:
- 9100757
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- BORE - OVERSIZE METRIC:
- +4.00 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- BORE SIZE METRIC:
- 89.00 MM
- DISPLACEMENT:
- 440 CC
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 70.00 MM
- UNITS:
- EACH
- BORE - OVERSIZE:
- +4,00 MM
- RIDING STYLE:
- OFF-ROAD
$249.95 -
WISECO Piston Kit - Standard - CRF450R/450X 4823M09600
WISECO
$269.95WISECO Piston Kit Standard CRF450R/450X 4823M09600Pistons come without gasket kit9100758- SKU:
- 9100758
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 96.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- SKIRT COATING:
- ARMORGLIDE®
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 62.10 MM
- UNITS:
- EACH
$269.95 -
WISECO Piston Kit - XR600/600R 4366M10000
WISECO
$269.95WISECO Piston Kit XR600/600R 4366M10000Pistons come without gasket kit9100760- SKU:
- 9100760
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
- BORE - OVERSIZE METRIC:
- +3.00 MM
- BORE SIZE METRIC:
- 100.00 MM
- DISPLACEMENT:
- 591 CC
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE:
- +3,00 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- STROKE LENGTH METRIC:
- 80.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$269.95 -
WISECO Piston Kit - Standard - KX 65 861M04450
WISECO
$134.95WISECO Piston Kit Standard KX 65 861M04450Pistons come without gasket kit9100761- SKU:
- 9100761
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 44.50 MM
- PRODUCT NAME:
- PISTON
- DISPLACEMENT:
- 64 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 41.60 MM
$134.95 -
WISECO Piston Kit - Standard 855M04700
WISECO
$119.95WISECO Piston Kit Standard 855M04700Pistons come without gasket kit9030586- SKU:
- 9030586
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 85 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- UNITS:
- EACH
- BORE SIZE METRIC:
- 47.00 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- ARMORGLIDE®
- STROKE LENGTH METRIC:
- 48.95 MM
$119.95 -
WISECO Piston Kit - Standard 855M05200
WISECO
$169.95WISECO Piston Kit Standard 855M05200Pistons come without gasket kit9030587- SKU:
- 9030587
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 104 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- ARMORGLIDE®
- STROKE LENGTH METRIC:
- 48.95 MM
- BORE SIZE METRIC:
- 52.00 MM
- ENGINE TYPE:
- 2-STROKE
$169.95 -
WISECO Piston Kit - 200/EXC/MXC 770M06600
WISECO
$184.95WISECO Piston Kit 200/EXC/MXC 770M06600Pistons come without gasket kit9100776- SKU:
- 9100776
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE - OVERSIZE:
- +2,00 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 60.00 MM
- BORE SIZE METRIC:
- 66.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +2.00 MM
- DISPLACEMENT:
- 193 CC
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- PRO-LITE
- RIDING STYLE:
- OFF-ROAD
$184.95 -
WISECO Piston Kit - Standard - 250SX 774M06640
WISECO
$192.95WISECO Piston Kit Standard 250SX 774M06640Pistons come without gasket kit9100777- SKU:
- 9100777
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$192.95Qty in Cart: 0Quantity:Price:$192.95Subtotal: -
WISECO Piston Kit - Standard 856M06640
WISECO
$192.95WISECO Piston Kit Standard 856M06640Pistons come without gasket kit9100778- SKU:
- 9100778
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- STREET
- SKIRT COATING:
- ARMORGLIDE®
- DISPLACEMENT:
- 249 CC
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE SIZE METRIC:
- 66.40 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$192.95 -
WISECO Piston Kit - Standard - KTM 300 858M07200
WISECO
$234.95WISECO Piston Kit Standard KTM 300 858M07200Pistons come without gasket kit9100779- SKU:
- 9100779
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 297 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 66.40 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- ARMORGLIDE®
- ENGINE TYPE:
- 2-STROKE
- STROKE LENGTH METRIC:
- 73.00 MM
$234.95 -
WISECO Piston Kit - Standard - 450SX 4805M09500
WISECO
$254.95WISECO Piston Kit Standard 450SX 4805M09500Pistons come without gasket kit9100784- SKU:
- 9100784
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 95.00 MM
- DISPLACEMENT:
- 449 CC
- STROKE LENGTH METRIC:
- 63.40 MM
$254.95 -
WISECO Piston Kit - Standard - 450SX 4806M09500
WISECO
$284.95WISECO Piston Kit Standard 450SX 4806M09500Pistons come without gasket kit9100785- SKU:
- 9100785
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- BORE SIZE METRIC:
- 95.00 MM
- RIDING STYLE:
- OFF-ROAD
- COMPRESSION RATIO IMPERIAL:
- 13.0:1
- DISPLACEMENT:
- 449 CC
- STROKE LENGTH METRIC:
- 63.40 MM
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
$284.95 -
WISECO Piston - +.50 mm 137M07000
WISECO
$199.95WISECO Piston +.50 mm 137M07000Forged 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...137M07000- SKU:
- 137M07000
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE - OVERSIZE METRIC:
- +0.50 MM
- STROKE LENGTH METRIC:
- 64.50 MM
- BORE SIZE METRIC:
- 70.00 MM
- PISTON DIAMETER METRIC:
- 69.95 MM
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 244.70 CC
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- BORE - OVERSIZE:
- +0,50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$199.95 -
WISECO Piston - Husqvarna - 1.0mm 137M07050
WISECO
$199.95WISECO Piston Husqvarna 1.0mm 137M07050Forged 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...137M07050- SKU:
- 137M07050
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- DISPLACEMENT:
- 244.70 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 64.50 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 70.50 MM
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 70.45 MM
$199.95 -
WISECO Piston - Husqvarna - 1.50mm 137M07100
WISECO
$224.95WISECO Piston Husqvarna 1.50mm 137M07100Forged 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...137M07100- SKU:
- 137M07100
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BORE - OVERSIZE:
- +1,50 MM
- STROKE LENGTH METRIC:
- 64.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 70.95 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +1.50 MM
- DISPLACEMENT:
- 244.70 CC
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- BORE SIZE METRIC:
- 71.00 MM
- PRODUCT NAME:
- PISTON KIT
$224.95 -
WISECO Piston Kit - KX 500 575M08800
WISECO
$244.95WISECO Piston Kit KX 500 575M08800Pistons come without gasket kit9102866- SKU:
- 9102866
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- BORE - OVERSIZE:
- +2,00 MM
- BORE - OVERSIZE METRIC:
- +2.00 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 86.00 MM
- BORE SIZE METRIC:
- 88.00 MM
- DISPLACEMENT:
- 523 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
$244.95Qty in Cart: 0Quantity:Price:$244.95Subtotal: -
WISECO Piston Kit - YZ125 594M05700
WISECO
$154.95WISECO Piston Kit YZ125 594M05700Pistons come without gasket kit9102867- SKU:
- 9102867
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 50.70 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- BORE SIZE METRIC:
- 57.00 MM
- DISPLACEMENT:
- 129 CC
- BORE - OVERSIZE:
- +1,00 MM
$154.95Qty in Cart: 0Quantity:Price:$154.95Subtotal:
