Dirt Bike Engine
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance. From crankshafts to cylinder heads and piston kits, these precision-engineered components ensure reliable performance. For additional upgrades, check out our full selection of off-road dirt bike parts.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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ATHENA Connecting Rod Kit P40321020
ATHENA
$156.95ATHENA 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...09230504- SKU:
- 09230504
- 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
$156.95Qty in Cart: 0Quantity:Price:$156.95Subtotal: -
ATHENA Connecting Rod Kit P40321021
ATHENA
$156.95ATHENA 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...09230505- SKU:
- 09230505
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$156.95 -
ATHENA Connecting Rod Kit P40321022
ATHENA
$160.95ATHENA 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...09230506- SKU:
- 09230506
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$160.95Qty in Cart: 0Quantity:Price:$160.95Subtotal: -
ATHENA Connecting Rod Kit P40321023
ATHENA
$160.95ATHENA 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...09230507- SKU:
- 09230507
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CONNECTING ROD KIT
$160.95 -
ATHENA Connecting Rod Kit P40321024
ATHENA
$160.95ATHENA 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...09230508- SKU:
- 09230508
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 450 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
$160.95 -
ATHENA Connecting Rod Kit P40321049
ATHENA
$181.95ATHENA 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...09230574- SKU:
- 09230574
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$181.95 -
ATHENA Connecting Rod Kit P40321050
ATHENA
$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...09230576- SKU:
- 09230576
- 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
$243.95 -
ATHENA Connecting Rod Kit P40321052
ATHENA
$202.95ATHENA 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...09230577- SKU:
- 09230577
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- DISPLACEMENT:
- 450 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$202.95 -
ATHENA Connecting Rod Kit P40321053
ATHENA
$121.95ATHENA 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...09230578- SKU:
- 09230578
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- DISPLACEMENT:
- 65 CC
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$121.95 -
ATHENA Connecting Rod Kit P40321054
ATHENA
$124.95ATHENA 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...09230579- SKU:
- 09230579
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- DISPLACEMENT:
- 85 CC
$124.95 -
ATHENA Piston Ring Set - Standard S41316004
ATHENA
$28.95ATHENA Piston Ring Set Standard S41316004Replacement rings for Athena Forged Pistons09120005- SKU:
- 09120005
- 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
$28.95Qty in Cart: 0Quantity:Price:$28.95Subtotal: -
ATHENA Piston Ring Set S41316030
ATHENA
$44.95ATHENA Piston Ring Set S41316030Replacement rings for Athena Forged Pistons09120158- SKU:
- 09120158
- 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
$44.95Qty in Cart: 0Quantity:Price:$44.95Subtotal: -
ATHENA Piston Ring Set S41316133
ATHENA
$35.95ATHENA Piston Ring Set S41316133Replacement rings for Athena Forged Pistons09120159- SKU:
- 09120159
- 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
$35.95 -
ATHENA Piston Ring Set S41316130
ATHENA
$16.95ATHENA Piston Ring Set S41316130Replacement rings for Athena Forged Pistons09120160- SKU:
- 09120160
- 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
$16.95Qty in Cart: 0Quantity:Price:$16.95Subtotal: -
ATHENA Piston Ring Set S41316089
ATHENA
$41.95ATHENA Piston Ring Set S41316089Replacement rings for Athena Forged Pistons09120281- SKU:
- 09120281
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- BORE SIZE METRIC:
- 82.00 MM
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED
$41.95 -
ATHENA Ring Set S41316181
ATHENA
$58.95ATHENA Ring Set S41316181Replacement rings for Athena Forged Pistons09120331- SKU:
- 09120331
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- BORE SIZE METRIC:
- 68.96 MM
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- ENGINE TYPE:
- 4-STROKE
$58.95 -
ATHENA Piston Ring Set S41316138
ATHENA
$43.95ATHENA Piston Ring Set S41316138Replacement rings for Athena Forged Pistons09120606- SKU:
- 09120606
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- BORE SIZE METRIC:
- 53.96 MM
- PISTON MATERIAL:
- FORGED
- UNITS:
- SET
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
$43.95Qty in Cart: 0Quantity:Price:$43.95Subtotal: -
ATHENA Crankcase - Yamaha S410130320004
ATHENA
$221.95ATHENA Crankcase Yamaha S410130320004Made of special steel and manufactured with CNC high-precision machinery, Standard stroke09210019- SKU:
- 09210019
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CRANKSHAFT
- UNITS:
- EACH
$221.95Qty in Cart: 0Quantity:Price:$221.95Subtotal: -
ATHENA Crankshaft - Yamaha/Malaguti S410130320005
ATHENA
$221.95ATHENA Crankshaft Yamaha/Malaguti S410130320005Made of special steel and manufactured with CNC high-precision machinery, Standard stroke09210020- SKU:
- 09210020
- Availability:
- Ships Same Business Day
- Weight:
- 2.84 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CRANKSHAFT
- UNITS:
- EACH
$221.95 -
ATHENA Crankcase - Yamaha YZ85 S410485320002
ATHENA
$171.95ATHENA Crankcase Yamaha YZ85 S410485320002Made of special steel and manufactured with CNC high-precision machinery, Standard stroke09210589- SKU:
- 09210589
- Availability:
- Ships Same Business Day
- Weight:
- 4.15 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
$171.95
