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!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
ATHENA Cylinder Kit - KTM/Husqvarna P400270100023
ATHENA
MSRP: $974.95Now: $877.46Was: $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
MSRP: $974.95Now: $877.46Was: $974.95 -
On Sale
ATHENA Cylinder Kit - Yamaha - Stock P400485100053
ATHENA
MSRP: $647.95Now: $583.16Was: $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
MSRP: $647.95Now: $583.16Was: $647.95 -
On Sale
ATHENA Cylinder Kit - Yamaha - Stock P400485100067
ATHENA
MSRP: $647.95Now: $583.16Was: $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
MSRP: $647.95Now: $583.16Was: $647.95 -
On Sale
ATHENA Cylinder Kit - Yamaha - Big Bore P400485100068
ATHENA
MSRP: $1,037.95Now: $934.16Was: $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
MSRP: $1,037.95Now: $934.16Was: $1,037.95 -
On Sale
ATHENA Top End Gasket Kit - KTM P400270600023
ATHENA
MSRP: $73.95Now: $66.56Was: $73.95ATHENA Top End Gasket Kit KTM P400270600023Specifically 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...09341785- SKU:
- 09341785
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
MSRP: $73.95Now: $66.56Was: $73.95 -
On Sale
ATHENA Top End Gasket Kit - Husqvarna P400220600252
ATHENA
MSRP: $60.95Now: $54.86Was: $60.95ATHENA Top End Gasket Kit Husqvarna P400220600252Specifically 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...09341789- SKU:
- 09341789
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- TOP END
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET KIT
MSRP: $60.95Now: $54.86Was: $60.95 -
On Sale
ATHENA Complete Gasket Kit - Husqvarna P400220850252
ATHENA
MSRP: $84.95Now: $76.46Was: $84.95ATHENA Complete Gasket Kit Husqvarna P400220850252Superior-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...09341824- SKU:
- 09341824
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- GASKET KIT
- ENGINE TYPE:
- -
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- RIDING STYLE:
- STREET
MSRP: $84.95Now: $76.46Was: $84.95Qty in Cart: 0Quantity:Price:MSRP: $84.95Now: $76.46Was: $84.95Subtotal: -
On Sale
ATHENA Top End Gasket Kit - Honda P400210600207
ATHENA
MSRP: $63.95Now: $57.56Was: $63.95ATHENA Top End Gasket Kit Honda P400210600207Specifically 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...09341969- SKU:
- 09341969
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- PRODUCT NAME:
- GASKET KIT
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
MSRP: $63.95Now: $57.56Was: $63.95 -
On Sale
ATHENA Top End Gasket Kit - Honda P400210600183
ATHENA
MSRP: $43.95Now: $39.56Was: $43.95ATHENA Top End Gasket Kit Honda P400210600183Specifically 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...09341970- SKU:
- 09341970
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
MSRP: $43.95Now: $39.56Was: $43.95 -
On Sale
ATHENA Top End Gasket Kit - Honda P400210600192
ATHENA
MSRP: $51.95Now: $46.76Was: $51.95ATHENA Top End Gasket Kit Honda P400210600192Specifically 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...09341972- SKU:
- 09341972
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- TOP END
- UNITS:
- KIT
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET KIT
MSRP: $51.95Now: $46.76Was: $51.95 -
On Sale
ATHENA Top End Gasket Kit - KTM P400270600013
ATHENA
MSRP: $22.95Now: $20.66Was: $22.95ATHENA Top End Gasket Kit KTM P400270600013Specifically 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...09341982- SKU:
- 09341982
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- PRODUCT NAME:
- GASKET KIT
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
MSRP: $22.95Now: $20.66Was: $22.95Qty in Cart: 0Quantity:Price:MSRP: $22.95Now: $20.66Was: $22.95Subtotal: -
On Sale
ATHENA Top End Gasket Kit - KTM P400270600016
ATHENA
MSRP: $70.95Now: $63.86Was: $70.95ATHENA Top End Gasket Kit KTM P400270600016Specifically 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...09341983- SKU:
- 09341983
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- RUBBER
- TYPE:
- TOP END
- UNITS:
- KIT
MSRP: $70.95Now: $63.86Was: $70.95 -
On Sale
ATHENA Top End Gasket Kit - Suzuki P400510600069
ATHENA
MSRP: $42.95Now: $38.66Was: $42.95ATHENA Top End Gasket Kit Suzuki P400510600069Specifically 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...09341985- SKU:
- 09341985
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $42.95Now: $38.66Was: $42.95 -
On Sale
ATHENA Complete Gasket Kit - Honda P400210850183
ATHENA
MSRP: $72.95Now: $65.66Was: $72.95ATHENA Complete Gasket Kit Honda P400210850183Superior-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...09341990- SKU:
- 09341990
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- ENGINE TYPE:
- -
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
MSRP: $72.95Now: $65.66Was: $72.95 -
On Sale
ATHENA Complete Gasket Kit - Honda P400210850184
ATHENA
MSRP: $70.95Now: $63.86Was: $70.95ATHENA Complete Gasket Kit Honda P400210850184Superior-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...09341991- SKU:
- 09341991
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- GASKET KIT
- ENGINE TYPE:
- -
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
MSRP: $70.95Now: $63.86Was: $70.95 -
On Sale
ATHENA Complete Gasket Kit - Honda P400210850192
ATHENA
MSRP: $83.95Now: $75.56Was: $83.95ATHENA Complete Gasket Kit Honda P400210850192Superior-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...09341992- SKU:
- 09341992
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- PRODUCT NAME:
- GASKET KIT
- ENGINE TYPE:
- -
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
MSRP: $83.95Now: $75.56Was: $83.95Qty in Cart: 0Quantity:Price:MSRP: $83.95Now: $75.56Was: $83.95Subtotal: -
On Sale
ATHENA Complete Gasket Kit - Honda P400210850215
ATHENA
MSRP: $184.95Now: $166.46Was: $184.95ATHENA Complete Gasket Kit Honda P400210850215Superior-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...09341993- SKU:
- 09341993
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- ENGINE TYPE:
- -
- UNITS:
- KIT
MSRP: $184.95Now: $166.46Was: $184.95 -
On Sale
ATHENA Complete Gasket Kit - Honda P400210850239
ATHENA
MSRP: $200.95Now: $180.86Was: $200.95ATHENA Complete Gasket Kit Honda P400210850239Superior-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...09341994- SKU:
- 09341994
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- ENGINE TYPE:
- -
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $200.95Now: $180.86Was: $200.95Qty in Cart: 0Quantity:Price:MSRP: $200.95Now: $180.86Was: $200.95Subtotal: -
On Sale
ATHENA Complete Gasket Kit - Kawasaki P400250850047
ATHENA
MSRP: $194.95Now: $175.46Was: $194.95ATHENA Complete Gasket Kit Kawasaki P400250850047Superior-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...09341997- SKU:
- 09341997
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- ENGINE TYPE:
- -
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET KIT
MSRP: $194.95Now: $175.46Was: $194.95 -
On Sale
ATHENA Complete Gasket Kit - KTM P400270850047
ATHENA
MSRP: $98.95Now: $89.06Was: $98.95ATHENA Complete Gasket Kit KTM P400270850047Superior-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...09342001- SKU:
- 09342001
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- PRODUCT NAME:
- GASKET KIT
- ENGINE TYPE:
- -
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
MSRP: $98.95Now: $89.06Was: $98.95Qty in Cart: 0Quantity:Price:MSRP: $98.95Now: $89.06Was: $98.95Subtotal:
