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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- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
VERTEX Piston Kit - High Compression 24021C
VERTEX
MSRP: $212.95Now: $128.00Was: $212.95VERTEX Piston Kit High Compression 24021CAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09103689- SKU:
- 09103689
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 14.3:1
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- PISTON DIAMETER METRIC:
- 76.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
MSRP: $212.95Now: $128.00Was: $212.95Qty in Cart: 0Quantity:Price:MSRP: $212.95Now: $128.00Was: $212.95Subtotal: -
On Sale
VERTEX Piston Kit - High Compression 24022B
VERTEX
MSRP: $301.95Now: $185.00Was: $307.95VERTEX Piston Kit High Compression 24022BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09103691- SKU:
- 09103691
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- DISPLACEMENT:
- 450 CC
- PISTON DIAMETER METRIC:
- 95.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-STROKE
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
MSRP: $301.95Now: $185.00Was: $307.95 -
On Sale
VERTEX Piston Kit VTKTC22915B
VERTEX
MSRP: $307.95Now: $277.16Was: $307.95VERTEX Piston Kit VTKTC22915BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09103717- SKU:
- 09103717
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
MSRP: $307.95Now: $277.16Was: $307.95 -
On Sale
VERTEX Piston Kit VTKTC22915B-1
VERTEX
MSRP: $301.95Now: $271.76Was: $301.95VERTEX Piston Kit VTKTC22915B-1All pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09103718- SKU:
- 09103718
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
MSRP: $301.95Now: $271.76Was: $301.95 -
On Sale
VERTEX Piston Kit VTKTC22951A
VERTEX
MSRP: $268.95Now: $246.56Was: $275.95VERTEX Piston Kit VTKTC22951AAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09103721- SKU:
- 09103721
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
MSRP: $268.95Now: $246.56Was: $275.95Qty in Cart: 0Quantity:Price:MSRP: $268.95Now: $246.56Was: $275.95Subtotal: -
On Sale
VERTEX Piston Kit VTKTC22983A
VERTEX
MSRP: $276.95Now: $249.26Was: $276.95VERTEX Piston Kit VTKTC22983AAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09103724- SKU:
- 09103724
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
MSRP: $276.95Now: $249.26Was: $276.95 -
WISECO Wrist Pin S529
WISECO
$23.99Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperaturesS529- SKU:
- S529
- Weight:
- 0.12 LBS
- APPLICATION:
- PISTON
- LENGTH:
- 61,3 MM
- LENGTH METRIC:
- 61.3 MM
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- WRIST PIN
- OUTSIDE DIAMETER:
- 21,00 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- SILICONE
- OUTSIDE DIAMETER METRIC:
- 21.00 MM
- RIDING STYLE:
- OFF-ROAD
$23.99 -
WISECO Piston - +1.00 mm 232M08600
WISECO
$209.95WISECO Piston +1.00 mm 232M08600Forged 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...232M08600- SKU:
- 232M08600
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 85.92 MM
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 70.00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 397 CC
- MODEL:
- FORGED SERIES
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- BORE - OVERSIZE:
- +1,00 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 86.00 MM
$209.95 -
WISECO Piston Kit 4190M09000
WISECO
$269.95WISECO Piston Kit 4190M09000Pistons come without gasket kit09102902- SKU:
- 09102902
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- BORE - OVERSIZE:
- +3,00 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- STROKE LENGTH METRIC:
- 84.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +3.00 MM
- BORE SIZE METRIC:
- 90.00 MM
- DISPLACEMENT:
- 499 CC
- RIDING STYLE:
- STREET
$269.95Qty in Cart: 0Quantity:Price:$269.95Subtotal: -
WISECO Piston - Yamaha - +.50 mm 236M05650
WISECO
$159.95WISECO Piston Yamaha +.50 mm 236M05650Forged 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...236M05650- SKU:
- 236M05650
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE:
- +0,50 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- UNITS:
- KIT
- BORE SIZE METRIC:
- 56.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 56.45 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 123 CC
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- STROKE LENGTH METRIC:
- 50.00 MM
$159.95 -
WISECO Piston Kit - XR/TRX400 4606M08700
WISECO
$219.95WISECO Piston Kit XR/TRX400 4606M08700Pistons come without gasket kit09102910- SKU:
- 09102910
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- BORE - OVERSIZE METRIC:
- +2.00 MM
- STROKE LENGTH METRIC:
- 70.00 MM
- BORE SIZE METRIC:
- 87.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- DISPLACEMENT:
- 397 CC
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- +2,00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
$219.95 -
WISECO Piston Kit - XR/TRX400 4628M08800
WISECO
$244.95WISECO Piston Kit XR/TRX400 4628M08800Pistons come without gasket kit09102915- SKU:
- 09102915
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE - OVERSIZE:
- +3,00 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- STROKE LENGTH METRIC:
- 70.00 MM
- BORE SIZE METRIC:
- 88.00 MM
- DISPLACEMENT:
- 397 CC
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE METRIC:
- +3.00 MM
$244.95 -
WISECO Piston Kit - XT/TT 350 4674M08600
WISECO
$185.95WISECO Piston Kit XT/TT 350 4674M08600Pistons come without gasket kit09102916- SKU:
- 09102916
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 346 CC
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 59.60 MM
- BORE SIZE METRIC:
- 86.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 9.0:1
$185.95 -
WISECO Piston Kit - XT/TT 350 4674M08750
WISECO
$203.95WISECO Piston Kit XT/TT 350 4674M08750Pistons come without gasket kit09102917- SKU:
- 09102917
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 87.00 MM
- DISPLACEMENT:
- 346 CC
- STROKE LENGTH METRIC:
- 59.60 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- COMPRESSION RATIO IMPERIAL:
- 9.0:1
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$203.95 -
WISECO Piston - +1.00 mm - Yamaha WR 500 Z/YZ 490 546M08800
WISECO
$234.95WISECO Piston +1.00 mm Yamaha WR 500 Z/YZ 490 546M08800Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability,...546M08800- SKU:
- 546M08800
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- BORE - OVERSIZE METRIC:
- +1.00 MM
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- DISPLACEMENT:
- 487 CC
- STROKE LENGTH:
- 82,00 MM
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 88.00 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 82.00 MM
$234.95 -
WISECO Piston - +1.50 mm - Yamaha WR 500 Z/YZ 490 546M08850
WISECO
$244.95WISECO Piston +1.50 mm Yamaha WR 500 Z/YZ 490 546M08850Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability,...546M08850- SKU:
- 546M08850
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- BORE - OVERSIZE METRIC:
- +1.50 MM
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 82.00 MM
- BORE SIZE METRIC:
- 88.50 MM
- DISPLACEMENT:
- 487 CC
- STROKE LENGTH:
- 82,00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE:
- +1,50 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$244.95 -
WISECO Piston - +2.00 mm - Yamaha WR 500 Z/YZ 490 546M08900
WISECO
$244.95WISECO Piston +2.00 mm Yamaha WR 500 Z/YZ 490 546M08900Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability,...546M08900- SKU:
- 546M08900
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- BORE - OVERSIZE METRIC:
- +2.00 MM
- DISPLACEMENT:
- 487 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH:
- 82,00 MM
- UNITS:
- EACH
- BORE - OVERSIZE:
- +2,00 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 89.00 MM
- STROKE LENGTH METRIC:
- 82.00 MM
$244.95 -
WISECO Piston - 76.5 mm 549M07650
WISECO
$149.95WISECO Piston 76.5 mm 549M07650Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips, Wiseco ring...549M07650- SKU:
- 549M07650
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE - OVERSIZE METRIC:
- +0.50 MM
- DISPLACEMENT:
- 299 CC
- BORE SIZE METRIC:
- 76.50 MM
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- WATERCRAFT
- BORE - OVERSIZE:
- +0,50 MM
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
$149.95Qty in Cart: 0Quantity:Price:$149.95Subtotal: -
WISECO Piston - 77 mm 549M07700
WISECO
$149.95WISECO Piston 77 mm 549M07700Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips, Wiseco ring...549M07700- SKU:
- 549M07700
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE - OVERSIZE:
- +1,00 MM
- RIDING STYLE:
- WATERCRAFT
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 303 CC
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- BORE SIZE METRIC:
- 77.00 MM
$149.95 -
On Sale
WISECO Piston - 77.5 mm 549M07750
WISECO
MSRP: $154.23Now: $97.00Was: $161.94WISECO Piston 77.5 mm 549M07750Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips, Wiseco ring...549M07750- SKU:
- 549M07750
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- DISPLACEMENT:
- 660 CC
- BORE SIZE METRIC:
- 77.50 MM
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- BORE - OVERSIZE:
- +1,50 MM
- BORE - OVERSIZE METRIC:
- +1.50 MM
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- WATERCRAFT
MSRP: $154.23Now: $97.00Was: $161.94
