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!
-
Dirt Bike Cams and Parts
-
Dirt Bike Connecting Rods and Parts
-
Dirt Bike Crankcases and Parts
-
Dirt Bike Crankshafts and Parts
-
Dirt Bike Cylinder Heads and Parts
-
Dirt Bike Cylinders and Parts
-
Dirt Bike Engine Bearings
-
Dirt Bike Engine Covers
-
Dirt Bike Engine Gaskets and Kits
-
Dirt Bike Engine Rebuild Kits
-
Dirt Bike Engine Seals - Orings and Kits
-
Dirt Bike Engine Valves and Parts
-
Dirt Bike Flywheel and Rod Assemblies
-
Dirt Bike Fuel Filters
-
Dirt Bike Miscellaneous Engine Parts
-
Dirt Bike Oil Coolers
-
Dirt Bike Oil Filters
-
Dirt Bike Oil Lines
-
Dirt Bike Oil Pumps
-
Dirt Bike Piston and Ring Kits
-
Dirt Bike Piston Rings Only
-
Dirt Bike Wrist Pins and Circlips
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
ATHENA Complete Gasket Kit - Honda P400210850095
ATHENA
MSRP: $142.95Now: $128.66Was: $142.95ATHENA 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...9340351- SKU:
- 9340351
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- PRODUCT NAME:
- GASKET KIT
- ENGINE TYPE:
- -
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
MSRP: $142.95Now: $128.66Was: $142.95 -
On Sale
ATHENA Complete Gasket Kit - Kawasaki/Suzuki P400250850016
ATHENA
MSRP: $125.95Now: $113.36Was: $125.95ATHENA 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...9340352- SKU:
- 9340352
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- ENGINE TYPE:
- -
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $125.95Now: $113.36Was: $125.95 -
On Sale
ATHENA Complete Gasket Kit - Yamaha P400485850118
ATHENA
MSRP: $43.95Now: $39.56Was: $43.95ATHENA 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...9340353- SKU:
- 9340353
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- ENGINE TYPE:
- -
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
MSRP: $43.95Now: $39.56Was: $43.95 -
On Sale
ATHENA Gasket Kit - YZ450F/YFZ450 P400485160009
ATHENA
MSRP: $107.95Now: $97.16Was: $107.95ATHENA 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,...9340355- SKU:
- 9340355
- 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
MSRP: $107.95Now: $97.16Was: $107.95 -
On Sale
ATHENA Gasket Kit P400485160007
ATHENA
MSRP: $77.95Now: $70.16Was: $77.95ATHENA 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...9340357- SKU:
- 9340357
- 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
MSRP: $77.95Now: $70.16Was: $77.95 -
On Sale
ATHENA Gasket Kit - KX250F/RMZ250 P400510160004
ATHENA
MSRP: $87.95Now: $79.16Was: $87.95ATHENA 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,...9340359- SKU:
- 9340359
- 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
MSRP: $87.95Now: $79.16Was: $87.95 -
On Sale
ATHENA Complete Gasket Kit - KTM P400060850143
ATHENA
MSRP: $43.95Now: $39.56Was: $43.95ATHENA 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...9340217- SKU:
- 9340217
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- ENGINE TYPE:
- -
- PRODUCT NAME:
- GASKET KIT
MSRP: $43.95Now: $39.56Was: $43.95 -
On Sale
ATHENA Complete Gasket Kit - KTM P400270850220/1
ATHENA
MSRP: $86.95Now: $78.26Was: $86.95ATHENA 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...9340221- SKU:
- 9340221
- 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
MSRP: $86.95Now: $78.26Was: $86.95 -
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...9310865- SKU:
- 9310865
- 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,...9310958- SKU:
- 9310958
- 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,...9310959- SKU:
- 9310959
- 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...9310960- SKU:
- 9310960
- 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 Complete Gasket Kit - Yamaha P400485850122
ATHENA
MSRP: $220.95Now: $198.86Was: $220.95Superior-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 tensile strength, Revolutionary transparent...9342134- SKU:
- 9342134
- Weight:
- 7.00 LBS
MSRP: $220.95Now: $198.86Was: $220.95Qty in Cart: 0Quantity:Price:MSRP: $220.95Now: $198.86Was: $220.95Subtotal: -
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...9341785- SKU:
- 9341785
- 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...9341789- SKU:
- 9341789
- 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...9341824- SKU:
- 9341824
- 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: $84.95 -
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...9341969- SKU:
- 9341969
- 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...9341970- SKU:
- 9341970
- 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...9341972- SKU:
- 9341972
- 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: $51.95Qty in Cart: 0Quantity:Price:MSRP: $51.95Now: $46.76Was: $51.95Subtotal: -
On Sale
ATHENA Top End Gasket Kit - Kawasaki P400250600049
ATHENA
MSRP: $149.95Now: $134.96Was: $149.95Specifically 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...9341976- SKU:
- 9341976
- Weight:
- 4.00 LBS
MSRP: $149.95Now: $134.96Was: $149.95Qty in Cart: 0Quantity:Price:MSRP: $149.95Now: $134.96Was: $149.95Subtotal:
