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!
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Dirt Bike Cams and Parts
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Dirt Bike Connecting Rods and Parts
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Dirt Bike Crankcases and Parts
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Dirt Bike Crankshafts and Parts
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Dirt Bike Cylinder Heads and Parts
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Dirt Bike Cylinders and Parts
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Dirt Bike Engine Bearings
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Dirt Bike Engine Covers
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Dirt Bike Engine Gaskets and Kits
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Dirt Bike Engine Rebuild Kits
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Dirt Bike Engine Seals - Orings and Kits
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Dirt Bike Engine Valves and Parts
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Dirt Bike Flywheel and Rod Assemblies
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Dirt Bike Fuel Filters
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Dirt Bike Miscellaneous Engine Parts
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Dirt Bike Oil Coolers
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Dirt Bike Oil Filters
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Dirt Bike Oil Lines
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Dirt Bike Oil Pumps
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Dirt Bike Piston and Ring Kits
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Dirt Bike Piston Rings Only
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Dirt Bike Wrist Pins and Circlips
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- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
ATHENA Water Pump Gasket Kit - Honda P400210475014
ATHENA
MSRP: $26.95Now: $24.26Was: $26.95ATHENA Water Pump Gasket Kit Honda P400210475014Include 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 bearings9346373- SKU:
- 9346373
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $26.95Now: $24.26Was: $26.95 -
On Sale
ATHENA Water Pump Gasket Kit - Yamaha P400485475012
ATHENA
MSRP: $37.95Now: $34.16Was: $37.95ATHENA Water Pump Gasket Kit Yamaha P400485475012Include 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 bearings9346375- SKU:
- 9346375
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET KIT
MSRP: $37.95Now: $34.16Was: $37.95 -
On Sale
ATHENA Water Pump Gasket Kit - Yamaha P400485475013
ATHENA
MSRP: $35.95Now: $32.36Was: $35.95ATHENA Water Pump Gasket Kit Yamaha P400485475013Include 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 bearings9346376- SKU:
- 9346376
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $35.95Now: $32.36Was: $35.95Qty in Cart: 0Quantity:Price:MSRP: $35.95Now: $32.36Was: $35.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - Kawasaki P400250475015
ATHENA
MSRP: $40.95Now: $36.86Was: $40.95ATHENA Water Pump Gasket Kit Kawasaki P400250475015Include 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 bearings9346377- SKU:
- 9346377
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
MSRP: $40.95Now: $36.86Was: $40.95Qty in Cart: 0Quantity:Price:MSRP: $40.95Now: $36.86Was: $40.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - Kawasaki P400250475016
ATHENA
MSRP: $65.95Now: $59.36Was: $65.95ATHENA Water Pump Gasket Kit Kawasaki P400250475016Include 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 bearings9346378- SKU:
- 9346378
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- WATER PUMP
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $65.95Now: $59.36Was: $65.95 -
On Sale
ATHENA Water Pump Gasket Kit - KTM/Husqvarna P400270475019
ATHENA
MSRP: $46.95Now: $42.26Was: $46.95ATHENA Water Pump Gasket Kit KTM/Husqvarna P400270475019Include 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 bearings9346380- SKU:
- 9346380
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- WATER PUMP
MSRP: $46.95Now: $42.26Was: $46.95 -
On Sale
ATHENA Water Pump Gasket Kit - KTM/Husqvarna P400270475020
ATHENA
MSRP: $58.95Now: $53.06Was: $58.95ATHENA Water Pump Gasket Kit KTM/Husqvarna P400270475020Include 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 bearings9346381- SKU:
- 9346381
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
MSRP: $58.95Now: $53.06Was: $58.95 -
On Sale
ATHENA Top End Gasket Kit - KTM P400270600092
ATHENA
MSRP: $69.95Now: $62.96Was: $69.95ATHENA Top End Gasket Kit KTM P400270600092Specifically 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...9346460- SKU:
- 9346460
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- TYPE:
- TOP END
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET KIT
MSRP: $69.95Now: $62.96Was: $69.95 -
On Sale
ATHENA Complete Gasket Kit - KTM P400270900092
ATHENA
MSRP: $178.95Now: $161.06Was: $178.95ATHENA Complete Gasket Kit KTM P400270900092Head 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...9346461- SKU:
- 9346461
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
MSRP: $178.95Now: $161.06Was: $178.95Qty in Cart: 0Quantity:Price:MSRP: $178.95Now: $161.06Was: $178.95Subtotal: -
On Sale
ATHENA Top End Gasket Kit - KTM P400270600093
ATHENA
MSRP: $81.95Now: $73.76Was: $81.95ATHENA Top End Gasket Kit KTM P400270600093Specifically 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...9346462- SKU:
- 9346462
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $81.95Now: $73.76Was: $81.95Qty in Cart: 0Quantity:Price:MSRP: $81.95Now: $73.76Was: $81.95Subtotal: -
On Sale
ATHENA Connecting Rod Kit P40321010
ATHENA
MSRP: $106.95Now: $96.26Was: $106.95ATHENA Connecting Rod Kit P40321010High-quality, lightweight connecting rods, Made with similar materials to the OEM component to ensure the same performance, Superficial high-frequency treatment for higher resistance that reduces rotational and...9230472- SKU:
- 9230472
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- UNITS:
- KIT
- DISPLACEMENT:
- 125 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
MSRP: $106.95Now: $96.26Was: $106.95 -
On Sale
ATHENA Connecting Rod Kit P40321011
ATHENA
MSRP: $121.95Now: $109.76Was: $121.95ATHENA Connecting Rod Kit P40321011High-quality, lightweight connecting rods, Made with similar materials to the OEM component to ensure the same performance, Superficial high-frequency treatment for higher resistance that reduces rotational and...9230473- SKU:
- 9230473
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $121.95Now: $109.76Was: $121.95 -
On Sale
ATHENA Connecting Rod Kit P40321012
ATHENA
MSRP: $148.95Now: $134.06Was: $148.95ATHENA Connecting Rod Kit P40321012High-quality, lightweight connecting rods, Made with similar materials to the OEM component to ensure the same performance, Superficial high-frequency treatment for higher resistance that reduces rotational and...9230474- SKU:
- 9230474
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 250 CC
MSRP: $148.95Now: $134.06Was: $148.95Qty in Cart: 0Quantity:Price:MSRP: $148.95Now: $134.06Was: $148.95Subtotal: -
On Sale
ATHENA Connecting Rod Kit P40321013
ATHENA
MSRP: $152.95Now: $137.66Was: $152.95ATHENA Connecting Rod Kit P40321013High-quality, lightweight connecting rods, Made with similar materials to the OEM component to ensure the same performance, Superficial high-frequency treatment for higher resistance that reduces rotational and...9230475- SKU:
- 9230475
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CONNECTING ROD KIT
MSRP: $152.95Now: $137.66Was: $152.95Qty in Cart: 0Quantity:Price:MSRP: $152.95Now: $137.66Was: $152.95Subtotal: -
On Sale
ATHENA Connecting Rod Kit P40321031
ATHENA
MSRP: $98.95Now: $89.06Was: $98.95ATHENA Connecting Rod Kit P40321031High-quality, lightweight connecting rods, Made with similar materials to the OEM component to ensure the same performance, Superficial high-frequency treatment for higher resistance that reduces rotational and...9230477- SKU:
- 9230477
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- DISPLACEMENT:
- 65 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 60 CC
MSRP: $98.95Now: $89.06Was: $98.95 -
On Sale
ATHENA Connecting Rod Kit P40321032
ATHENA
MSRP: $98.95Now: $89.06Was: $98.95ATHENA Connecting Rod Kit P40321032High-quality, lightweight connecting rods, Made with similar materials to the OEM component to ensure the same performance, Superficial high-frequency treatment for higher resistance that reduces rotational and...9230478- SKU:
- 9230478
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- DISPLACEMENT:
- 85 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- DISPLACEMENT:
- 100 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 80 CC
MSRP: $98.95Now: $89.06Was: $98.95 -
On Sale
ATHENA Connecting Rod Kit P40321033
ATHENA
MSRP: $109.95Now: $98.96Was: $109.95ATHENA Connecting Rod Kit P40321033High-quality, lightweight connecting rods, Made with similar materials to the OEM component to ensure the same performance, Superficial high-frequency treatment for higher resistance that reduces rotational and...9230479- SKU:
- 9230479
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 125 CC
MSRP: $109.95Now: $98.96Was: $109.95 -
On Sale
ATHENA Connecting Rod Kit P40321034
ATHENA
MSRP: $115.95Now: $104.36Was: $115.95ATHENA Connecting Rod Kit P40321034High-quality, lightweight connecting rods, Made with similar materials to the OEM component to ensure the same performance, Superficial high-frequency treatment for higher resistance that reduces rotational and...9230480- SKU:
- 9230480
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 250 CC
- RIDING STYLE:
- STREET
MSRP: $115.95Now: $104.36Was: $115.95 -
On Sale
ATHENA Connecting Rod Kit P40321035
ATHENA
MSRP: $152.95Now: $137.66Was: $152.95ATHENA Connecting Rod Kit P40321035High-quality, lightweight connecting rods, Made with similar materials to the OEM component to ensure the same performance, Superficial high-frequency treatment for higher resistance that reduces rotational and...9230483- SKU:
- 9230483
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- STREET
- UNITS:
- KIT
MSRP: $152.95Now: $137.66Was: $152.95 -
On Sale
ATHENA Connecting Rod Kit P40321015
ATHENA
MSRP: $106.95Now: $96.26Was: $106.95ATHENA Connecting Rod Kit P40321015High-quality, lightweight connecting rods, Made with similar materials to the OEM component to ensure the same performance, Superficial high-frequency treatment for higher resistance that reduces rotational and...9230500- SKU:
- 9230500
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- DISPLACEMENT:
- 125 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- RIDING STYLE:
- STREET
MSRP: $106.95Now: $96.26Was: $106.95
