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.
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- Price
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HOT CAMS Exhaust Camshaft 2040-1E
HOT CAMS
$272.95HOT CAMS Exhaust Camshaft 2040-1EHigh-performance racing camshafts, In most applications, Stage 1 cams deliver more torque and Stage 2 cams provide more peak horsepower, Select cams feature Hot Cams Improved Throttle Design (ITR) technology; these cams...09250051- SKU:
- 09250051
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- EXHAUST DURATION IMPERIAL:
- 244°
- EXHAUST LIFT METRIC:
- 7.98 MM
- TYPE:
- STAGE 1
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CAMSHAFT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$272.95 -
HOT CAMS Camshaft 1056-3
HOT CAMS
$400.95HOT CAMS Camshaft 1056-3High-performance racing camshafts, Stage 1 and Stage 2 performance camshafts are drop-in cams that are designed to be used with stock valve springs, In most applications, Stage 1 cams deliver more torque and Stage 2 cams provide...09250084- SKU:
- 09250084
- Availability:
- Ships Same Business Day
- Weight:
- 0.96 LBS
- PRODUCT NAME:
- CAMSHAFT
- RIDING STYLE:
- ATV
- APPLICATION:
- EXHAUST
- EXHAUST DURATION IMPERIAL:
- 265°
- EXHAUST LIFT METRIC:
- 9.10 MM
- APPLICATION:
- INTAKE
- UNITS:
- EACH
- INTAKE DURATION IMPERIAL:
- 254°
- INTAKE LIFT METRIC:
- 10.40 MM
- TYPE:
- STAGE 3
$400.95 -
HOT CAMS Exhaust Camshaft 4022-1E
HOT CAMS
$310.95HOT CAMS Exhaust Camshaft 4022-1EHigh-performance racing camshafts, In most applications, Stage 1 cams deliver more torque and Stage 2 cams provide more peak horsepower, Select cams feature Hot Cams Improved Throttle Design (ITR) technology; these cams...09250035- SKU:
- 09250035
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- STAGE 1
- UNITS:
- EACH
- EXHAUST DURATION IMPERIAL:
- 265°
- EXHAUST LIFT METRIC:
- 8.67 MM
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
$310.95 -
HOT CAMS Exhaust Valve 8400002-1
HOT CAMS
$47.95HOT CAMS Exhaust Valve 8400002-1Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262904- SKU:
- 09262904
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLACK
- LENGTH METRIC:
- 84 MM
- APPLICATION:
- EXHAUST
- STEM DIAMETER METRIC:
- 4.970 MM
- OUTSIDE DIAMETER METRIC:
- 31.00 MM
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
$47.95 -
HOT CAMS Exhaust Valve 8400002-5
HOT CAMS
$49.95HOT CAMS Exhaust Valve 8400002-5Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262905- SKU:
- 09262905
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- STEM DIAMETER METRIC:
- 4.970 MM
- BASE COLOR:
- BLACK
- LENGTH METRIC:
- 84 MM
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- COLOR/FINISH:
- BLACK
- OUTSIDE DIAMETER METRIC:
- 30 MM
- UNITS:
- EACH
$49.95 -
HOT CAMS Exhaust Valve 8400003-1
HOT CAMS
$44.95HOT CAMS Exhaust Valve 8400003-1Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262906- SKU:
- 09262906
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- BLACK
- OUTSIDE DIAMETER METRIC:
- 29.00 MM
- STEM DIAMETER METRIC:
- 5.460 MM
- APPLICATION:
- EXHAUST
- LENGTH METRIC:
- 101 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
$44.95 -
HOT CAMS Intake Valve 8400003-2
HOT CAMS
$29.95HOT CAMS Intake Valve 8400003-2Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262907- SKU:
- 09262907
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- LENGTH METRIC:
- 103 MM
- BASE COLOR:
- BLACK
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- BLACK
- OUTSIDE DIAMETER METRIC:
- 33.00 MM
- RIDING STYLE:
- ATV
- STEM DIAMETER METRIC:
- 5.480 MM
- UNITS:
- EACH
$29.95 -
HOT CAMS Exhaust Valve 8400009-1
HOT CAMS
$64.95HOT CAMS Exhaust Valve 8400009-1Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262908- SKU:
- 09262908
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- LENGTH METRIC:
- 81.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- BASE COLOR:
- BLACK
- OUTSIDE DIAMETER METRIC:
- 29.00 MM
- PRODUCT NAME:
- VALVE
- STEM DIAMETER METRIC:
- 4.960 MM
$64.95 -
HOT CAMS Intake Valve 8400009-2
HOT CAMS
$49.95HOT CAMS Intake Valve 8400009-2Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262909- SKU:
- 09262909
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- LENGTH METRIC:
- 82.00 MM
- BASE COLOR:
- BLACK
- OUTSIDE DIAMETER METRIC:
- 36.00 MM
- PRODUCT NAME:
- VALVE
- STEM DIAMETER METRIC:
- 4.980 MM
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$49.95 -
HOT CAMS Exhaust Valve 8400020-1
HOT CAMS
$37.95HOT CAMS Exhaust Valve 8400020-1Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262910- SKU:
- 09262910
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- VALVE
- COLOR/FINISH:
- BLACK
- LENGTH METRIC:
- 80 MM
- OUTSIDE DIAMETER METRIC:
- 22.50 MM
- STEM DIAMETER METRIC:
- 4.470 MM
- UNITS:
- EACH
$37.95 -
HOT CAMS Intake Valve 8400020-2
HOT CAMS
$27.95HOT CAMS Intake Valve 8400020-2Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262911- SKU:
- 09262911
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- STEM DIAMETER METRIC:
- 4.48 MM
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
$27.95Qty in Cart: 0Quantity:Price:$27.95Subtotal: -
HOT CAMS Exhaust Valve 8400027-1
HOT CAMS
$46.95HOT CAMS Exhaust Valve 8400027-1Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262912- SKU:
- 09262912
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- EXHAUST
- STEM DIAMETER METRIC:
- 4.970 MM
- COLOR/FINISH:
- BLACK
- BASE COLOR:
- BLACK
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$46.95 -
HOT CAMS Exhaust Valve 8400027-5
HOT CAMS
$50.95HOT CAMS Exhaust Valve 8400027-5Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262913- SKU:
- 09262913
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- BLACK
- STEM DIAMETER METRIC:
- 4.980 MM
- APPLICATION:
- EXHAUST
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$50.95 -
HOT CAMS Exhaust Valve 8400032-1
HOT CAMS
$47.95HOT CAMS Exhaust Valve 8400032-1Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262914- SKU:
- 09262914
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- BLACK
- APPLICATION:
- EXHAUST
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- VALVE
- STEM DIAMETER METRIC:
- 4.470 MM
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$47.95 -
HOT CAMS Exhaust Valve 8400038-1
HOT CAMS
$59.95HOT CAMS Exhaust Valve 8400038-1Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262915- SKU:
- 09262915
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- BLACK
- BASE COLOR:
- BLACK
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- STEM DIAMETER METRIC:
- 5.96 MM
$59.95 -
HOT CAMS Intake Valve 8400038-2
HOT CAMS
$37.95HOT CAMS Intake Valve 8400038-2Forged one-piece OEM replacement valves, Precision machined valve head and seat surfaces, Nitride coated, Induction hardened valve stem tip, Precision polished surface, Compatible with OEM valve keepers09262916- SKU:
- 09262916
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- BLACK
- APPLICATION:
- INTAKE
- BASE COLOR:
- BLACK
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- ATV
- STEM DIAMETER METRIC:
- 5.97 MM
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$37.95 -
HOT CAMS Camshaft 2313-2IN
HOT CAMS
$264.95HOT CAMS Camshaft 2313-2INHigh-performance racing camshafts, Stage 1 and Stage 2 performance camshafts are drop-in cams that are designed to be used with stock valve springs, In most applications, Stage 1 cams deliver more torque and Stage 2 cams provide...09251244- SKU:
- 09251244
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- INTAKE DURATION IMPERIAL:
- 254°
- PRODUCT NAME:
- CAMSHAFT
- APPLICATION:
- INTAKE
- INTAKE LIFT METRIC:
- 10.41 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE 2
- UNITS:
- EACH
$264.95 -
HOT CAMS Valve Shim - 10.0 x 1.85 - 5 pack 5PK1000185
HOT CAMS
$10.95HOT CAMS Valve Shim 10.0 x 1.85 5 pack 5PK1000185Replacement packs of shims to refill Valve Shim Kits09261274- SKU:
- 09261274
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PRODUCT NAME:
- SHIM
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 1.85 MM
$10.95 -
HOT CAMS Valve Shim - 10.0 x 2.00 - 5 pack 5PK1000200
HOT CAMS
$10.95HOT CAMS Valve Shim 10.0 x 2.00 5 pack 5PK1000200Replacement packs of shims to refill Valve Shim Kits09261277- SKU:
- 09261277
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PRODUCT NAME:
- SHIM
- VALVE SHIM THICKNESS METRIC:
- 2.00 MM
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
$10.95 -
HOT CAMS Valve Shim - 10.0 x 2.05 - 5 pack 5PK1000205
HOT CAMS
$10.95HOT CAMS Valve Shim 10.0 x 2.05 5 pack 5PK1000205Replacement packs of shims to refill Valve Shim Kits09261278- SKU:
- 09261278
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- RIDING STYLE:
- OFF-ROAD
- VALVE SHIM THICKNESS METRIC:
- 2.05 MM
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SHIM
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
$10.95
