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 Top End Gasket Kit - Honda P400210600195
ATHENA
$100.95ATHENA Top End Gasket Kit Honda P400210600195Specifically 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...09344869- SKU:
- 09344869
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- UNITS:
- KIT
$100.95Qty in Cart: 0Quantity:Price:$100.95Subtotal: -
ATHENA Complete Gasket Kit - Polaris P400485850006
ATHENA
$15.95ATHENA Complete Gasket Kit Polaris P400485850006Superior-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...09344887- SKU:
- 09344887
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- COMPLETE
- UNITS:
- KIT
- ENGINE TYPE:
- -
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
ATHENA Complete Gasket Kit - Polaris P400427870017
ATHENA
$162.95ATHENA Complete Gasket Kit Polaris P400427870017Superior-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...09344898- SKU:
- 09344898
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- ENGINE TYPE:
- -
- TYPE:
- COMPLETE
- UNITS:
- KIT
$162.95 -
ATHENA Gasket Kit - TRX450R P400210160014
ATHENA
$149.95ATHENA Gasket Kit TRX450R P400210160014Kits 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...09344911- SKU:
- 09344911
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- BORE SIZE METRIC:
- 100.00 MM
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- UNITS:
- KIT
- BORE SIZE:
- 100,00 MM
$149.95 -
ATHENA Water Pump Gasket Kit - Yamaha P400485470001
ATHENA
$44.95ATHENA Water Pump Gasket Kit Yamaha P400485470001Include water pump gasket, clutch cover gasket, water pump shaft oil seals and washers, Kit contents will vary slightly based on application, Kits do not contain replacement bearings09345166- SKU:
- 09345166
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$44.95 -
ATHENA Cylinder Kit - CRF150R - 69mm P400210100023
ATHENA
$585.95ATHENA Cylinder Kit CRF150R 69mm P400210100023Kits 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,...09310307- SKU:
- 09310307
- Availability:
- Ships Same Business Day
- Weight:
- 3.14 LBS
- DISPLACEMENT:
- 163.5 CC
- ENGINE TYPE:
- 4-STROKE
- BORE SIZE METRIC:
- 69.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
- MATERIAL:
- ALUMINUM
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
$585.95 -
ATHENA Cylinder Kit - YZ250 - 72mm P400485100042
ATHENA
$1,497.95ATHENA Cylinder Kit YZ250 72mm P400485100042Kits 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,...09310440- SKU:
- 09310440
- Availability:
- Ships Same Business Day
- Weight:
- 9.00 LBS
- BORE SIZE METRIC:
- 72.00 MM
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
- ENGINE TYPE:
- 2-STROKE
- DISPLACEMENT:
- 293 CC
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
$1,497.95 -
ATHENA Cylinder Kit - YZ85 - 105CC P400485100038
ATHENA
$819.95ATHENA Cylinder Kit YZ85 105CC P400485100038Kits 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,...09310473- SKU:
- 09310473
- Availability:
- Ships Same Business Day
- Weight:
- 4.33 LBS
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- BORE SIZE METRIC:
- 53.00 MM
- DISPLACEMENT:
- 105 CC
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- ALUMINUM
$819.95 -
ATHENA Cylinder Gasket Kit - YZ125 P400485160003
ATHENA
$57.95Kits 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 bolt-on; no machining required400485160003- SKU:
- 400485160003
- Availability:
- Ships Same Business Day
- Weight:
- 12.00 LBS
$57.95 -
ATHENA Top End Gasket Kit - Yamaha P400485600085
ATHENA
$11.95Specifically 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 a higher compression. Kits do not...400485600085- SKU:
- 400485600085
- Availability:
- Ships Same Business Day
- Weight:
- 0.00 LBS
$11.95 -
ATHENA Top End Gasket Kit - Yamaha P400485160076
ATHENA
$25.95ATHENA Top End Gasket Kit Yamaha P400485160076Specifically 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...09346689- SKU:
- 09346689
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
$25.95 -
ATHENA Top End Gasket Kit - KTM SX85 P400270600088
ATHENA
$99.95ATHENA Top End Gasket Kit KTM SX85 P400270600088Specifically 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...09346189- SKU:
- 09346189
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
$99.95 -
ATHENA Complete Gasket Kit - YZF450 P400485900197
ATHENA
$163.95ATHENA Complete Gasket Kit YZF450 P400485900197Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high spring-back and superior tensile strength, Revolutionary transparent...09346208- SKU:
- 09346208
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
$163.95Qty in Cart: 0Quantity:Price:$163.95Subtotal: -
ATHENA Top End Gasket Kit - Yamaha P400485600197
ATHENA
$57.95ATHENA Top End Gasket Kit Yamaha P400485600197Specifically 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...09346215- SKU:
- 09346215
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- TOP END
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$57.95 -
ATHENA Top End Gasket Kit - Honda P400210600319
ATHENA
$67.95ATHENA Top End Gasket Kit Honda P400210600319Specifically 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...09346346- SKU:
- 09346346
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
$67.95 -
ATHENA Complete Gasket Kit - Honda P400210900319
ATHENA
$198.95ATHENA Complete Gasket Kit Honda P400210900319Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high spring-back and superior tensile strength, Revolutionary transparent...09346347- SKU:
- 09346347
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
$198.95 -
ATHENA Top End Gasket Kit - Honda P400210600320
ATHENA
$82.95ATHENA Top End Gasket Kit Honda P400210600320Specifically 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...09346348- SKU:
- 09346348
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$82.95 -
ATHENA Complete Gasket Kit - Honda P400210900320
ATHENA
$209.95ATHENA Complete Gasket Kit Honda P400210900320Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high spring-back and superior tensile strength, Revolutionary transparent...09346349- SKU:
- 09346349
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
$209.95Qty in Cart: 0Quantity:Price:$209.95Subtotal: -
ATHENA Complete Gasket Kit - Yamaha P400485900198
ATHENA
$98.95ATHENA Complete Gasket Kit Yamaha P400485900198Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high spring-back and superior tensile strength, Revolutionary transparent...09346358- SKU:
- 09346358
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
$98.95 -
ATHENA Top End Gasket Kit - Yamaha P400485600199
ATHENA
$31.95ATHENA Top End Gasket Kit Yamaha P400485600199Specifically 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...09346359- SKU:
- 09346359
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$31.95
