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
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
ATHENA Connecting Rod Kit P40321016
ATHENA
MSRP: $106.95Now: $96.26Was: $106.95ATHENA Connecting Rod Kit P40321016High-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...9230501- SKU:
- 9230501
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 125 CC
MSRP: $106.95Now: $96.26Was: $106.95 -
On Sale
ATHENA Connecting Rod Kit P40321017
ATHENA
MSRP: $106.95Now: $96.26Was: $106.95ATHENA Connecting Rod Kit P40321017High-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...9230502- SKU:
- 9230502
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 125 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
MSRP: $106.95Now: $96.26Was: $106.95 -
On Sale
ATHENA Connecting Rod Kit P40321019
ATHENA
MSRP: $115.95Now: $104.36Was: $115.95ATHENA Connecting Rod Kit P40321019High-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...9230503- SKU:
- 9230503
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- DISPLACEMENT:
- 250 CC
- UNITS:
- KIT
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
MSRP: $115.95Now: $104.36Was: $115.95 -
On Sale
ATHENA Connecting Rod Kit P40321020
ATHENA
MSRP: $148.95Now: $134.06Was: $148.95ATHENA Connecting Rod Kit P40321020High-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...9230504- SKU:
- 9230504
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- DISPLACEMENT:
- 250 CC
- RIDING STYLE:
- STREET
- DISPLACEMENT:
- 300 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $148.95Now: $134.06Was: $148.95 -
On Sale
ATHENA Connecting Rod Kit P40321021
ATHENA
MSRP: $148.95Now: $134.06Was: $148.95ATHENA Connecting Rod Kit P40321021High-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...9230505- SKU:
- 9230505
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $148.95Now: $134.06Was: $148.95 -
On Sale
ATHENA Connecting Rod Kit P40321022
ATHENA
MSRP: $152.95Now: $137.66Was: $152.95ATHENA Connecting Rod Kit P40321022High-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...9230506- SKU:
- 9230506
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $152.95Now: $137.66Was: $152.95 -
On Sale
ATHENA Connecting Rod Kit P40321023
ATHENA
MSRP: $152.95Now: $137.66Was: $152.95ATHENA Connecting Rod Kit P40321023High-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...9230507- SKU:
- 9230507
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CONNECTING ROD KIT
MSRP: $152.95Now: $137.66Was: $152.95 -
On Sale
ATHENA Connecting Rod Kit P40321024
ATHENA
MSRP: $152.95Now: $137.66Was: $152.95ATHENA Connecting Rod Kit P40321024High-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...9230508- SKU:
- 9230508
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
MSRP: $152.95Now: $137.66Was: $152.95 -
On Sale
ATHENA Connecting Rod Kit P40321049
ATHENA
MSRP: $172.95Now: $155.66Was: $172.95ATHENA Connecting Rod Kit P40321049High-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...9230574- SKU:
- 9230574
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $172.95Now: $155.66Was: $172.95 -
On Sale
ATHENA Connecting Rod Kit P40321050
ATHENA
MSRP: $243.95Now: $219.56Was: $243.95ATHENA Connecting Rod Kit P40321050High-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...9230576- SKU:
- 9230576
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 250 CC
- RIDING STYLE:
- STREET
- UNITS:
- KIT
MSRP: $243.95Now: $219.56Was: $243.95 -
On Sale
ATHENA Connecting Rod Kit P40321052
ATHENA
MSRP: $192.95Now: $173.66Was: $192.95ATHENA Connecting Rod Kit P40321052High-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...9230577- SKU:
- 9230577
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $192.95Now: $173.66Was: $192.95 -
On Sale
ATHENA Connecting Rod Kit P40321053
ATHENA
MSRP: $115.95Now: $104.36Was: $115.95ATHENA Connecting Rod Kit P40321053High-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...9230578- SKU:
- 9230578
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- DISPLACEMENT:
- 65 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $115.95Now: $104.36Was: $115.95 -
On Sale
ATHENA Connecting Rod Kit P40321054
ATHENA
MSRP: $118.95Now: $107.06Was: $118.95ATHENA Connecting Rod Kit P40321054High-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...9230579- SKU:
- 9230579
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 85 CC
MSRP: $118.95Now: $107.06Was: $118.95 -
On Sale
ATHENA Piston Ring Set - Standard S41316004
ATHENA
MSRP: $26.95Now: $24.26Was: $26.95ATHENA Piston Ring Set Standard S41316004Replacement rings for Athena Forged Pistons9120005- SKU:
- 9120005
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- BORE SIZE METRIC:
- 53.95 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
MSRP: $26.95Now: $24.26Was: $26.95 -
On Sale
ATHENA Piston Ring Set - Standard S41316012
ATHENA
MSRP: $51.95Now: $46.76Was: $51.95ATHENA Piston Ring Set Standard S41316012Replacement rings for Athena Forged Pistons9120008- SKU:
- 9120008
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- UNITS:
- SET
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- BORE SIZE METRIC:
- 66.34 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
MSRP: $51.95Now: $46.76Was: $51.95Qty in Cart: 0Quantity:Price:MSRP: $51.95Now: $46.76Was: $51.95Subtotal: -
On Sale
ATHENA Piston Ring Set S41316040
ATHENA
MSRP: $23.95Now: $21.56Was: $23.95ATHENA Piston Ring Set S41316040Replacement rings for Athena Forged Pistons9120156- SKU:
- 9120156
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 44.46 MM
- PISTON MATERIAL:
- FORGED
- UNITS:
- SET
MSRP: $23.95Now: $21.56Was: $23.95Qty in Cart: 0Quantity:Price:MSRP: $23.95Now: $21.56Was: $23.95Subtotal: -
On Sale
ATHENA Piston Ring Set S41316139
ATHENA
MSRP: $19.95Now: $17.96Was: $19.95ATHENA Piston Ring Set S41316139Replacement rings for Athena Forged Pistons9120157- SKU:
- 9120157
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 56.95 MM
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON RING
- PISTON MATERIAL:
- FORGED
- UNITS:
- SET
MSRP: $19.95Now: $17.96Was: $19.95Qty in Cart: 0Quantity:Price:MSRP: $19.95Now: $17.96Was: $19.95Subtotal: -
On Sale
ATHENA Piston Ring Set S41316030
ATHENA
MSRP: $41.95Now: $37.76Was: $41.95ATHENA Piston Ring Set S41316030Replacement rings for Athena Forged Pistons9120158- SKU:
- 9120158
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- BORE SIZE METRIC:
- 95.50 MM
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- ATV
- PISTON MATERIAL:
- FORGED
- UNITS:
- SET
MSRP: $41.95Now: $37.76Was: $41.95 -
On Sale
ATHENA Piston Ring Set S41316133
ATHENA
MSRP: $33.95Now: $30.56Was: $33.95ATHENA Piston Ring Set S41316133Replacement rings for Athena Forged Pistons9120159- SKU:
- 9120159
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 83.00 MM
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED
MSRP: $33.95Now: $30.56Was: $33.95 -
On Sale
ATHENA Piston Ring Set S41316130
ATHENA
MSRP: $15.95Now: $14.36Was: $15.95ATHENA Piston Ring Set S41316130Replacement rings for Athena Forged Pistons9120160- SKU:
- 9120160
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- UNITS:
- SET
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM
- BORE SIZE METRIC:
- 53.94 MM
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
MSRP: $15.95Now: $14.36Was: $15.95
