Dirt Bike Engine
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance. From crankshafts to cylinder heads and piston kits, these precision-engineered components ensure reliable performance. For additional upgrades, check out our full selection of off-road dirt bike parts.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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ATHENA Gasket Kit - YZ125 - 58 mm P400485160014
ATHENA
$81.95ATHENA Gasket Kit YZ125 58 mm P400485160014Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions,...09341578- SKU:
- 09341578
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- BORE SIZE:
- 58,00 MM
- TYPE:
- TOP END
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 58.00 MM
- RIDING STYLE:
- OFF-ROAD
$81.95 -
ATHENA Complete Gasket Kit - Zuma 50 P400485850002
ATHENA
$20.95ATHENA Complete Gasket Kit Zuma 50 P400485850002Superior-quality gasket sets from Athena, Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high springback and superior...09341580- SKU:
- 09341580
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- UNITS:
- KIT
- ENGINE TYPE:
- -
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- COMPLETE
- RIDING STYLE:
- STREET
$20.95Qty in Cart: 0Quantity:Price:$20.95Subtotal: -
ATHENA Gasket Kit - CRF250 P400210160007
ATHENA
$104.95ATHENA Gasket Kit CRF250 P400210160007Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions, All are...09341054- SKU:
- 09341054
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- BORE SIZE:
- 82,00 MM
- BORE SIZE METRIC:
- 82.00 MM
- UNITS:
- KIT
$104.95 -
ATHENA Gasket Kit - YZ125 P400485160010
ATHENA
$58.95ATHENA Gasket Kit YZ125 P400485160010Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions, All are...09341055- SKU:
- 09341055
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE:
- 54,00 MM
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 54.00 MM
$58.95 -
ATHENA Gasket Kit - YZF450 P400485160013
ATHENA
$122.95ATHENA Gasket Kit YZF450 P400485160013Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions, All are...09341057- SKU:
- 09341057
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- BORE SIZE:
- 98,00 MM
- BORE SIZE METRIC:
- 98.00 MM
- TYPE:
- TOP END
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
$122.95 -
ATHENA Top End Gasket Kit P400210600095
ATHENA
$112.95ATHENA Top End Gasket Kit P400210600095Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with...09340346- SKU:
- 09340346
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
- UNITS:
- KIT
$112.95 -
ATHENA Top End Gasket Kit P400250600016
ATHENA
$86.95ATHENA Top End Gasket Kit P400250600016Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with...09340347- SKU:
- 09340347
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- RUBBER
- TYPE:
- TOP END
- UNITS:
- KIT
$86.95 -
ATHENA Top End Gasket Kit P400485600118
ATHENA
$26.95ATHENA Top End Gasket Kit P400485600118Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with...09340348- SKU:
- 09340348
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$26.95 -
ATHENA Complete Gasket Kit - Honda P400210850095
ATHENA
$150.95ATHENA Complete Gasket Kit Honda P400210850095Superior-quality gasket sets from Athena, Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high springback and superior...09340351- SKU:
- 09340351
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- PRODUCT NAME:
- GASKET KIT
- ENGINE TYPE:
- -
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
$150.95 -
ATHENA Complete Gasket Kit - Kawasaki/Suzuki P400250850016
ATHENA
$132.95ATHENA Complete Gasket Kit Kawasaki/Suzuki P400250850016Superior-quality gasket sets from Athena, Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high springback and...09340352- SKU:
- 09340352
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- ENGINE TYPE:
- -
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
$132.95 -
ATHENA Complete Gasket Kit - Yamaha P400485850118
ATHENA
$46.95ATHENA Complete Gasket Kit Yamaha P400485850118Superior-quality gasket sets from Athena, Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high springback and superior...09340353- SKU:
- 09340353
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- ENGINE TYPE:
- -
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
$46.95 -
ATHENA Gasket Kit - YZ450F/YFZ450 P400485160009
ATHENA
$122.95ATHENA Gasket Kit YZ450F/YFZ450 P400485160009Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions,...09340355- SKU:
- 09340355
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- BORE SIZE METRIC:
- 98.00 MM
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- UNITS:
- KIT
- BORE SIZE:
- 98,00 MM
$122.95 -
ATHENA Gasket Kit P400485160007
ATHENA
$91.95ATHENA Gasket Kit P400485160007Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions, All are...09340357- SKU:
- 09340357
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 83.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE:
- 83,00 MM
- TYPE:
- TOP END
$91.95 -
ATHENA Gasket Kit - KX250F/RMZ250 P400510160004
ATHENA
$104.95ATHENA Gasket Kit KX250F/RMZ250 P400510160004Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions,...09340359- SKU:
- 09340359
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- BORE SIZE:
- 83,00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 83.00 MM
- TYPE:
- TOP END
$104.95Qty in Cart: 0Quantity:Price:$104.95Subtotal: -
ATHENA Complete Gasket Kit - KTM P400060850143
ATHENA
$46.95ATHENA Complete Gasket Kit KTM P400060850143Superior-quality gasket sets from Athena, Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high springback and superior...09340217- SKU:
- 09340217
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- ENGINE TYPE:
- -
- PRODUCT NAME:
- GASKET KIT
$46.95 -
ATHENA Complete Gasket Kit - KTM P400270850220/1
ATHENA
$91.95ATHENA Complete Gasket Kit KTM P400270850220/1Superior-quality gasket sets from Athena, Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high springback and superior...09340221- SKU:
- 09340221
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET KIT
$91.95Qty in Cart: 0Quantity:Price:$91.95Subtotal: -
ATHENA Cylinder Kit - KTM/Husqvarna P400270100023
ATHENA
$974.95ATHENA Cylinder Kit KTM/Husqvarna P400270100023Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation...09310865- SKU:
- 09310865
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- BORE SIZE METRIC:
- 82.00 MM
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
- DISPLACEMENT:
- 276 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- MATERIAL:
- ALUMINUM
$974.95 -
ATHENA Cylinder Kit - Yamaha - Stock P400485100053
ATHENA
$647.95ATHENA Cylinder Kit Yamaha Stock P400485100053Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions,...09310958- SKU:
- 09310958
- Availability:
- Ships Same Business Day
- Weight:
- 4.65 LBS
- BORE SIZE METRIC:
- 97.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
- ENGINE TYPE:
- 4-STROKE
- MATERIAL:
- ALUMINUM
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STOCK BORE
- UNITS:
- KIT
$647.95 -
ATHENA Cylinder Kit - Yamaha - Stock P400485100067
ATHENA
$647.95ATHENA Cylinder Kit Yamaha Stock P400485100067Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions,...09310959- SKU:
- 09310959
- Availability:
- Ships Same Business Day
- Weight:
- 4.60 LBS
- PRODUCT NAME:
- CYLINDER KIT
- DISPLACEMENT:
- 450 CC
- STYLE:
- STOCK BORE
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 97.00 MM
- ENGINE TYPE:
- 4-STROKE
- MATERIAL:
- ALUMINUM
$647.95 -
ATHENA Cylinder Kit - Yamaha - Big Bore P400485100068
ATHENA
$1,037.95ATHENA Cylinder Kit Yamaha Big Bore P400485100068Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation...09310960- SKU:
- 09310960
- Availability:
- Ships Same Business Day
- Weight:
- 4.35 LBS
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
- BORE SIZE METRIC:
- 102.00 MM
- DISPLACEMENT:
- 496 CC
- MATERIAL:
- ALUMINUM
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
$1,037.95
