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
-
COMETIC Top End Gasket Set - Suzuki C7054
COMETIC
$28.95COMETIC Top End Gasket Set Suzuki C7054Top end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the gasket...C7054- SKU:
- C7054
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$28.95 -
COMETIC Top End Gasket Set - Kawasaki C7047
COMETIC
$52.95COMETIC Top End Gasket Set Kawasaki C7047Top end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the...C7047- SKU:
- C7047
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 88.00 MM
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$52.95 -
COMETIC Top End Gasket Set - Honda C7020
COMETIC
$51.95COMETIC Top End Gasket Set Honda C7020Top end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the gasket...C7020- SKU:
- C7020
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- THICKNESS IMPERIAL:
- 0,012'
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 91.00 MM
- PRODUCT NAME:
- GASKET KIT
- THICKNESS METRIC:
- 0.31 MM
$51.95 -
COMETIC Top End Gasket Set - Honda C7005
COMETIC
$40.95COMETIC Top End Gasket Set Honda C7005Top end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the gasket...C7005- SKU:
- C7005
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 57.00 MM
- THICKNESS IMPERIAL:
- 0,012'
- THICKNESS METRIC:
- 0.31 MM
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$40.95Qty in Cart: 0Quantity:Price:$40.95Subtotal: -
On Sale
COMETIC Top End Gasket Set - Kawasaki C6202
COMETIC
MSRP: $103.95Now: $67.57Was: $103.95COMETIC Top End Gasket Set Kawasaki C6202Gasket kits are complete with head, base, reed, intake, manifold and exhaust gaskets, Graphite head gaskets are manufactured from non-asbestos, flexible graphite laminated to a stainless steel core, Graphite...C6202- SKU:
- C6202
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- MODEL:
- HI-PERFORMANCE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 81.00 MM
- DISPLACEMENT:
- 1205 CC
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- TOP END
MSRP: $103.95Now: $67.57Was: $103.95Qty in Cart: 0Quantity:Price:MSRP: $103.95Now: $67.57Was: $103.95Subtotal: -
COMETIC Top End Gasket Set - Yamaha C6199
COMETIC
$57.95COMETIC Top End Gasket Set Yamaha C6199Gasket kits are complete with head, base, reed, intake, manifold and exhaust gaskets, Graphite head gaskets are manufactured from non-asbestos, flexible graphite laminated to a stainless steel core, Graphite...C6199- SKU:
- C6199
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 86.00 MM
- DISPLACEMENT:
- 800 CC
- UNITS:
- KIT
- MODEL:
- HI-PERFORMANCE
- PRODUCT NAME:
- GASKET KIT
$57.95 -
COMETIC Top End Gasket Set - Polaris C6181
COMETIC
$74.95COMETIC Top End Gasket Set Polaris C6181Gasket kits are complete with head, base, reed, intake, manifold and exhaust gaskets, Graphite head gaskets are manufactured from non-asbestos, flexible graphite laminated to a stainless steel core, Graphite...C6181- SKU:
- C6181
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$74.95Qty in Cart: 0Quantity:Price:$74.95Subtotal: -
COMETIC Gasket Set - 1100ZXI/STX Kawasaki C6145
COMETIC
$88.95COMETIC Gasket Set 1100ZXI/STX Kawasaki C6145Gasket kits are complete with head, base, reed, intake, manifold and exhaust gaskets, Graphite head gaskets are manufactured from non-asbestos, flexible graphite laminated to a stainless steel core, Graphite...C6145- SKU:
- C6145
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- TOP END
- DISPLACEMENT:
- 1097 CC
- UNITS:
- KIT
- BORE SIZE METRIC:
- 81.00 MM
- MODEL:
- HI-PERFORMANCE
$88.95 -
COMETIC Top End Gasket Set - 900ZXI C6118
COMETIC
$74.95COMETIC Top End Gasket Set 900ZXI C6118Gasket kits are complete with head, base, reed, intake, manifold and exhaust gaskets, Graphite head gaskets are manufactured from non-asbestos, flexible graphite laminated to a stainless steel core, Graphite...C6118- SKU:
- C6118
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- BORE SIZE METRIC:
- 75.00 MM
- RIDING STYLE:
- WATERCRAFT
- DISPLACEMENT:
- 941 CC
- MODEL:
- HI-PERFORMANCE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
$74.95Qty in Cart: 0Quantity:Price:$74.95Subtotal: -
COMETIC Top End Gasket Set - WR 701 C6084
COMETIC
$57.95COMETIC Top End Gasket Set WR 701 C6084Gasket kits are complete with head, base, reed, intake, manifold and exhaust gaskets, Graphite head gaskets are manufactured from non-asbestos, flexible graphite laminated to a stainless steel core, Graphite...C6084- SKU:
- C6084
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- DISPLACEMENT:
- 701 CC
- MODEL:
- HI-PERFORMANCE
- UNITS:
- KIT
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
$57.95 -
COMETIC Top End Gasket Set - Kawasaki C6043
COMETIC
$51.95COMETIC Top End Gasket Set Kawasaki C6043Gasket kits are complete with head, base, reed, intake, manifold and exhaust gaskets, Graphite head gaskets are manufactured from non-asbestos, flexible graphite laminated to a stainless steel core, Graphite...C6043- SKU:
- C6043
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- MODEL:
- HI-PERFORMANCE
- UNITS:
- KIT
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- TOP END
- DISPLACEMENT:
- 750 CC
- PRODUCT NAME:
- GASKET KIT
$51.95 -
COMETIC Top End Gasket Set - Kawasaki C6004
COMETIC
$73.95COMETIC Top End Gasket Set Kawasaki C6004Gasket kits are complete with head, base, reed, intake, manifold and exhaust gaskets, Graphite head gaskets are manufactured from non-asbestos, flexible graphite laminated to a stainless steel core, Graphite...C6004- SKU:
- C6004
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- RIDING STYLE:
- WATERCRAFT
- THICKNESS IMPERIAL:
- 0,020'
- THICKNESS METRIC:
- 0.51 MM
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 77.00 MM
- PRODUCT NAME:
- GASKET KIT
- DISPLACEMENT:
- 550 CC
- UNITS:
- KIT
- MODEL:
- HI-PERFORMANCE
$73.95 -
COMETIC Top End Gasket - Kawasaki C6001
COMETIC
$27.95COMETIC Top End Gasket Kawasaki C6001Gasket kits are complete with head, base, reed, intake, manifold and exhaust gaskets, Graphite head gaskets are manufactured from non-asbestos, flexible graphite laminated to a stainless steel core, Graphite material...C6001X- SKU:
- C6001X
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- THICKNESS METRIC:
- 1.09 MM
- UNITS:
- KIT
- BORE SIZE METRIC:
- 78.00 MM
- MODEL:
- HI-PERFORMANCE
- THICKNESS IMPERIAL:
- 0,043'
- DISPLACEMENT:
- 300 CC
- RIDING STYLE:
- WATERCRAFT
$27.95 -
HINSON RACING Clutch Cover - CRF450/TRX450 C224
HINSON RACING
$159.99HINSON RACING Clutch Cover CRF450/TRX450 C224Improves heat dissipation, Stronger than stock, Race proven, Made in the U.S.A.C154- SKU:
- C154
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- T-6 ALUMINUM
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- MODEL:
- BILLETPROOF
$159.99Qty in Cart: 0Quantity:Price:$159.99Subtotal: -
WISECO Piston - Standard 806M04800
WISECO
$119.95WISECO Piston Standard 806M04800Forged 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, longevity and increased...806M04800- SKU:
- 806M04800
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- STROKE LENGTH:
- 46,80 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON
- STROKE LENGTH METRIC:
- 46.80 MM
- UNITS:
- EACH
- DISPLACEMENT:
- 84.7 CC
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 48.00 MM
- PISTON MATERIAL:
- FORGED
$119.95 -
WISECO Piston - +2.00 mm - Yamaha YZ 85 805M04950
WISECO
$134.95WISECO Piston +2.00 mm Yamaha YZ 85 805M04950Forged 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, longevity...805M04950- SKU:
- 805M04950
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- DISPLACEMENT:
- 85 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH:
- 47,80 MM
- UNITS:
- EACH
- BORE - OVERSIZE METRIC:
- +2.00 MM
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE:
- +2,00 MM
- BORE SIZE METRIC:
- 49.50 MM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 47.80 MM
$134.95Qty in Cart: 0Quantity:Price:$134.95Subtotal: -
WISECO Piston - Standard - Yamaha YZ 85 805M04750
WISECO
$119.95WISECO Piston Standard Yamaha YZ 85 805M04750Forged 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, longevity...805M04750- SKU:
- 805M04750
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH:
- 47,80 MM
- STROKE LENGTH METRIC:
- 47.80 MM
- UNITS:
- EACH
- DISPLACEMENT:
- 85 CC
- BORE SIZE METRIC:
- 47.50 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
$119.95 -
WISECO Piston - Standard - Yamaha YZ 250/X 804M06640
WISECO
$154.95WISECO Piston Standard Yamaha YZ 250/X 804M06640Forged 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,...804M06640- SKU:
- 804M06640
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- STROKE LENGTH METRIC:
- 72.00 MM
- BORE SIZE METRIC:
- 66.40 MM
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 249 CC
- PRODUCT NAME:
- PISTON
- STROKE LENGTH:
- 72,00 MM
$154.95 -
WISECO Piston - +2.00 mm 803M04150
WISECO
$109.95WISECO Piston +2.00 mm 803M04150Forged 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, longevity and increased...803M04150- SKU:
- 803M04150
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BORE - OVERSIZE METRIC:
- +2.00 MM
- ENGINE TYPE:
- 2-STROKE
- DISPLACEMENT:
- 49 CC
- STROKE LENGTH:
- 40,00 MM
- BORE SIZE METRIC:
- 41.50 MM
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- +2,00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH METRIC:
- 40.00 MM
- UNITS:
- EACH
$109.95 -
WISECO Piston - Standard 803M03950
WISECO
$104.95WISECO Piston Standard 803M03950Forged 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, longevity and increased...803M03950- SKU:
- 803M03950
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH:
- 40,00 MM
- UNITS:
- EACH
- BORE SIZE METRIC:
- 39.50 MM
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 40.00 MM
- DISPLACEMENT:
- 49 CC
$104.95
