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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- Quantity
- Price
- Subtotal
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On Sale
HOT RODS Connecting Rod 8617
HOT RODS
MSRP: $182.95Now: $168.26Was: $186.95HOT RODS Connecting Rod 8617Heavy-duty OE replacement connecting rods, Certified 8620 AISI steel provides superior strength, Crankpins are manufactured from hot-rolled ASTM 4115 and case hardened to 58-62Rc, Feature the latest in caged needle roller...9230035- SKU:
- 9230035
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MATERIAL:
- 8620 STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 4-CYCLE
MSRP: $182.95Now: $168.26Was: $186.95 -
On Sale
HOT RODS Crankshaft Kit CBK0223
HOT RODS
MSRP: $679.95Now: $624.56Was: $693.95HOT RODS Crankshaft Kit CBK0223Assembly sold complete with Hot Rods connecting rod, Factory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely...9210602- SKU:
- 9210602
- Availability:
- Ships Same Business Day
- Weight:
- 13.10 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT
MSRP: $679.95Now: $624.56Was: $693.95Qty in Cart: 0Quantity:Price:MSRP: $679.95Now: $624.56Was: $693.95Subtotal: -
On Sale
HOT RODS Crankshaft Kit CBK0225
HOT RODS
MSRP: $711.95Now: $653.36Was: $725.95HOT RODS Crankshaft Kit CBK0225Assembly sold complete with Hot Rods connecting rod, Factory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely...9210601- SKU:
- 9210601
- Availability:
- Ships Same Business Day
- Weight:
- 10.35 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT
MSRP: $711.95Now: $653.36Was: $725.95 -
On Sale
HOT RODS Crankshaft Kit CBK0222
HOT RODS
MSRP: $603.95Now: $554.36Was: $615.95HOT RODS Crankshaft Kit CBK0222Assembly sold complete with Hot Rods connecting rod, Factory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely...9210597- SKU:
- 9210597
- Availability:
- Ships Same Business Day
- Weight:
- 9.90 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT
MSRP: $603.95Now: $554.36Was: $615.95 -
On Sale
HOT RODS Bottom End Kit CBK0196
HOT RODS
MSRP: $519.95Now: $467.96Was: $519.95Kit features everything needed to complete crankshaft installation including Hot Rods main bearings and seals kit plus a complete engine gasket set that includes all gaskets and seals for a complete engine rebuild, "Stroker Kits" crankshaft assemblies...9210587- SKU:
- 9210587
- Weight:
- 166.00 LBS
MSRP: $519.95Now: $467.96Was: $519.95Qty in Cart: 0Quantity:Price:MSRP: $519.95Now: $467.96Was: $519.95Subtotal: -
On Sale
HOT RODS Bottom End Kit CBK0195
HOT RODS
MSRP: $439.95Now: $395.96Was: $439.95Kit features everything needed to complete crankshaft installation including Hot Rods main bearings and seals kit plus a complete engine gasket set that includes all gaskets and seals for a complete engine rebuild, "Stroker Kits" crankshaft assemblies...9210586- SKU:
- 9210586
- Weight:
- 163.00 LBS
MSRP: $439.95Now: $395.96Was: $439.95Qty in Cart: 0Quantity:Price:MSRP: $439.95Now: $395.96Was: $439.95Subtotal: -
On Sale
HOT RODS Crankshaft - Stroker 4516
HOT RODS
MSRP: $394.95Now: $355.46Was: $394.95HOT RODS Crankshaft Stroker 4516Hot Rods has developed six long-stroke applications for ATVs, Special pistons for TRX400EX, KFX/LTZ 400, Banshee, Warrior and Raptor make these installations simple by avoiding machine work and parts typically required for...9210519- SKU:
- 9210519
- Availability:
- Ships Same Business Day
- Weight:
- 6.80 LBS
- MODEL:
- 4-CYCLE
- STROKE LENGTH:
- 56,60 MM
- TYPE:
- STROKER
- DISPLACEMENT:
- 264 CC
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 56.60 MM
- UNITS:
- ASSEMBLY
MSRP: $394.95Now: $355.46Was: $394.95 -
On Sale
HOT RODS Crankshaft Kit 4420
HOT RODS
MSRP: $258.95Now: $237.56Was: $263.95HOT RODS Crankshaft Kit 4420Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready...9210518- SKU:
- 9210518
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- DISPLACEMENT:
- 50 CC
- FEATURES:
- STANDARD CRANKSHAFT
- TYPE:
- OEM STROKE
- MODEL:
- 2-CYCLE
- COLOR/FINISH:
- STEEL
- MATERIAL:
- 4140 STEEL
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 39.98 MM
- UNITS:
- ASSEMBLY
MSRP: $258.95Now: $237.56Was: $263.95 -
On Sale
HOT RODS Crankshaft Kit 4419
HOT RODS
MSRP: $279.95Now: $257.36Was: $285.95HOT RODS Crankshaft Kit 4419Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready...9210517- SKU:
- 9210517
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- DISPLACEMENT:
- 85 CC TO 100 CC
- FEATURES:
- STANDARD CRANKSHAFT
- MODEL:
- 2-CYCLE
- STROKE LENGTH METRIC:
- 45.80 MM
- TYPE:
- OEM STROKE
MSRP: $279.95Now: $257.36Was: $285.95 -
On Sale
HOT RODS Crankshaft Kit 4416
HOT RODS
MSRP: $398.95Now: $366.26Was: $406.95HOT RODS Crankshaft Kit 4416Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready...9210516- SKU:
- 9210516
- Availability:
- Ships Same Business Day
- Weight:
- 6.95 LBS
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- STROKE LENGTH METRIC:
- 53.60 MM
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- FEATURES:
- STANDARD CRANKSHAFT
- MODEL:
- 4-CYCLE
- TYPE:
- OEM STROKE
MSRP: $398.95Now: $366.26Was: $406.95 -
On Sale
HOT RODS Crankshaft Assembly 4415
HOT RODS
MSRP: $389.95Now: $350.96Was: $389.95HOT RODS Crankshaft Assembly 4415Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and...9210512- SKU:
- 9210512
- Availability:
- Ships Same Business Day
- Weight:
- 9.85 LBS
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- 62.10 MM
- UNITS:
- ASSEMBLY
- MODEL:
- 4-CYCLE
- COLOR/FINISH:
- STEEL
- DISPLACEMENT:
- 450 CC
- FEATURES:
- STANDARD CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OEM STROKE
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
MSRP: $389.95Now: $350.96Was: $389.95 -
On Sale
HOT RODS Crankshaft Assembly 4402
HOT RODS
MSRP: $549.95Now: $494.96Was: $549.95Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for installation, Completely...9210511- SKU:
- 9210511
- Weight:
- 112.00 LBS
MSRP: $549.95Now: $494.96Was: $549.95Qty in Cart: 0Quantity:Price:MSRP: $549.95Now: $494.96Was: $549.95Subtotal: -
On Sale
HOT RODS Crankshaft Assembly 4401
HOT RODS
MSRP: $312.95Now: $287.06Was: $318.95HOT RODS Crankshaft Assembly 4401Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and...9210510- SKU:
- 9210510
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- COLOR/FINISH:
- STEEL
- MATERIAL:
- 4140 STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- ASSEMBLY
- MODEL:
- 2-CYCLE
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- DISPLACEMENT:
- 50 CC
- FEATURES:
- STANDARD CRANKSHAFT
- TYPE:
- OEM STROKE
- STROKE LENGTH METRIC:
- 39.96 MM
MSRP: $312.95Now: $287.06Was: $318.95 -
On Sale
HOT RODS Crankshaft Assembly 4084
HOT RODS
MSRP: $441.95Now: $405.86Was: $450.95HOT RODS Crankshaft Assembly 4084Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and...9210509- SKU:
- 9210509
- Availability:
- Ships Same Business Day
- Weight:
- 9.83 LBS
- DISPLACEMENT:
- 450 CC
- FEATURES:
- STANDARD CRANKSHAFT
- MODEL:
- 4-CYCLE
- TYPE:
- OEM STROKE
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- 62.10 MM
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
MSRP: $441.95Now: $405.86Was: $450.95 -
On Sale
HOT RODS Crankshaft Assembly 4023
HOT RODS
MSRP: $366.95Now: $336.56Was: $373.95HOT RODS Crankshaft Assembly 4023Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and...9210508- SKU:
- 9210508
- Availability:
- Ships Same Business Day
- Weight:
- 4.75 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- STROKE LENGTH METRIC:
- 48.90 MM
- FEATURES:
- STANDARD CRANKSHAFT
- TYPE:
- OEM STROKE
- MODEL:
- 2-CYCLE
- COLOR/FINISH:
- STEEL
- DISPLACEMENT:
- 85 CC
- MATERIAL:
- 4140 STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- ASSEMBLY
MSRP: $366.95Now: $336.56Was: $373.95 -
On Sale
HOT RODS Crankshaft Kit CBK0190
HOT RODS
MSRP: $387.95Now: $356.36Was: $395.95HOT RODS Crankshaft Kit CBK0190Assembly sold complete with Hot Rods connecting rod, Factory assembled and true to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely...9210507- SKU:
- 9210507
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $387.95Now: $356.36Was: $395.95 -
On Sale
HOT RODS Crankshaft - Stroker 4129
HOT RODS
MSRP: $489.95Now: $440.96Was: $489.95HOT RODS Crankshaft Stroker 4129Hot Rods has developed six long-stroke applications for ATVs, Special pistons for TRX400EX, KFX/LTZ 400, Banshee, Warrior and Raptor make these installations simple by avoiding machine work and parts typically required for...9210460- SKU:
- 9210460
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
- DISPLACEMENT:
- 262 CC
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH:
- 57,80 MM
- TYPE:
- STROKER
- MODEL:
- 4-CYCLE
- UNITS:
- ASSEMBLY
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- STROKE LENGTH METRIC:
- 57.80 MM
MSRP: $489.95Now: $440.96Was: $489.95 -
On Sale
HOT RODS Crankshaft 4019
HOT RODS
MSRP: $452.95Now: $415.76Was: $461.95HOT RODS Crankshaft 4019Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for...9210457- SKU:
- 9210457
- Availability:
- Ships Same Business Day
- Weight:
- 9.81 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MODEL:
- 4-CYCLE
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OEM STROKE
- DISPLACEMENT:
- 450 CC
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- 62.10 MM
- UNITS:
- ASSEMBLY
MSRP: $452.95Now: $415.76Was: $461.95 -
On Sale
HOT RODS Crankshaft Kit CBK0127
HOT RODS
MSRP: $646.95Now: $593.96Was: $659.95HOT RODS Crankshaft Kit CBK0127Assembly sold complete with Hot Rods connecting rod, Factory assembled and true to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely...9210361- SKU:
- 9210361
- Availability:
- Ships Same Business Day
- Weight:
- 9.90 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
MSRP: $646.95Now: $593.96Was: $659.95 -
On Sale
HOT RODS Crankshaft Kit CBK0126
HOT RODS
MSRP: $484.95Now: $445.46Was: $494.95HOT RODS Crankshaft Kit CBK0126Assembly sold complete with Hot Rods connecting rod, Factory assembled and true to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely...9210360- SKU:
- 9210360
- Availability:
- Ships Same Business Day
- Weight:
- 10.49 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
MSRP: $484.95Now: $445.46Was: $494.95Qty in Cart: 0Quantity:Price:MSRP: $484.95Now: $445.46Was: $494.95Subtotal:
