Dirt Bike Engine
Dirt Bike Engine Parts at JJ Motorsports
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance from JJ Motorsports. 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 to keep your engine running at peak efficiency on the track or trails.
Shop trusted brands like Wiseco for forged piston kits and K&N for high-flow oil filters. Explore related categories such as Dirt Bike Air and Fuel for intake upgrades or Dirt Bike Exhaust for complete systems.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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HOT RODS Crankshaft Kit CBK0110
HOT RODS
$768.95If you're building a high-performance engine or restoring a race-proven platform, the HOT RODS Crankshaft Kit CBK0110 delivers factory-matched precision with performance credentials that rival or exceed OEM specifications. This complete assembly arrives...09210351- SKU:
- 09210351
- Availability:
- Ships Same Business Day
- Weight:
- 12.75 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$768.95 -
HOT RODS Crankshaft Kit CBK0108
HOT RODS
$622.95If you're building a high-performance engine or restoring a classic with upgraded displacement, the HOT RODS Crankshaft Kit CBK0108 delivers the strength and precision you need to handle increased power and boost. This factory-assembled stroker crank is...09210349- SKU:
- 09210349
- Availability:
- Ships Same Business Day
- Weight:
- 6.85 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$622.95Qty in Cart: 0Quantity:Price:$622.95Subtotal: -
HOT RODS Crankshaft Kit CBK0107
HOT RODS
$595.95If you're building a high-performance engine or restoring a classic with serious power ambitions, the HOT RODS Crankshaft Kit CBK0107 gives you factory-spec reliability paired with upgraded durability for demanding applications. This complete assembly...09210348- SKU:
- 09210348
- Availability:
- Ships Same Business Day
- Weight:
- 6.84 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$595.95 -
HOT RODS Crankshaft Kit CBK0105
HOT RODS
$768.95If you're building a high-performance engine or restoring a classic with serious power goals, the HOT RODS Crankshaft Kit CBK0105 delivers the durability and precision you need without compromise. Factory-assembled and true to OEM specifications, this...09210347- SKU:
- 09210347
- Availability:
- Ships Same Business Day
- Weight:
- 14.05 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OEM
$768.95 -
HOT RODS Crankshaft Kit CBK0104
HOT RODS
$264.95A stroker crankshaft fundamentally increases your engine's displacement and torque output, delivering the low-end power and sustained performance necessary for competitive racing or high-demand builds. The HOT RODS CBK0104 arrives factory-assembled and...09210346- SKU:
- 09210346
- Availability:
- Ships Same Business Day
- Weight:
- 7.15 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- OEM
$264.95 -
HOT RODS Crankshaft Kit CBK0103
HOT RODS
$476.95If you're building a high-performance engine or need to replace a worn crankshaft, the HOT RODS Crankshaft Kit CBK0103 delivers factory-matched reliability with the durability to handle sustained power. This complete assembly arrives pre-assembled and...09210345- SKU:
- 09210345
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$476.95 -
HOT RODS Crankshaft Kit CBK0076
HOT RODS
$343.95If you're building a high-performance engine or planning a stroker kit upgrade, the HOT RODS Crankshaft Kit CBK0076 delivers the durability and precision you need to handle sustained power increases. Factory-assembled and true to OEM specifications, this...09210324- SKU:
- 09210324
- Availability:
- Ships Same Business Day
- Weight:
- 6.55 LBS
- TYPE:
- OEM
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$343.95 -
HOT RODS Crankshaft Kit CBK0075
HOT RODS
$397.95If you're building a high-performance engine or restoring a classic that demands more displacement and power, the HOT RODS Crankshaft Kit CBK0075 delivers the precision engineering and durability you need. This factory-assembled stroker crankshaft is...09210323- SKU:
- 09210323
- Availability:
- Ships Same Business Day
- Weight:
- 6.55 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$397.95 -
HOT RODS Crankshaft Kit CBK0031
HOT RODS
$662.95The HOT RODS Crankshaft Kit CBK0031 delivers factory-spec performance with the durability to handle high-RPM demands and forced-induction applications. This complete assembly arrives pre-assembled and true to OEM specifications, eliminating guesswork and...09210287- SKU:
- 09210287
- Availability:
- Ships Same Business Day
- Weight:
- 10.17 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$662.95 -
HOT RODS Crankshaft Kit CBK0029
HOT RODS
$423.95Whether you're building a high-displacement stroker engine or replacing a worn crankshaft, the HOT RODS Crankshaft Kit CBK0029 delivers the durability and precision you need for sustained high-RPM performance. This factory-assembled unit meets or exceeds...09210286- SKU:
- 09210286
- Availability:
- Ships Same Business Day
- Weight:
- 6.15 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$423.95 -
HOT RODS Crankshaft Kit CBK0028
HOT RODS
$741.95If you're building or rebuilding a high-performance engine, the foundation matters—and that's where the HOT RODS Crankshaft Kit CBK0028 comes in. This factory-assembled crankshaft comes complete with genuine HOT RODS connecting rods, eliminating the...09210285- SKU:
- 09210285
- Availability:
- Ships Same Business Day
- Weight:
- 9.70 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- OEM
$741.95 -
HOT RODS Crankshaft Kit CBK0026
HOT RODS
$716.95If you're building a high-performance engine or need to restore your crankshaft assembly to factory specifications, the HOT RODS Crankshaft Kit CBK0026 delivers the reliability and precision you demand. This complete assembly arrives factory-assembled...09210284- SKU:
- 09210284
- Availability:
- Ships Same Business Day
- Weight:
- 11.96 LBS
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$716.95 -
HOT RODS Crankshaft Kit CBK0024
HOT RODS
$531.95If you're serious about building an engine that rivals or exceeds OEM performance standards, the HOT RODS Crankshaft Kit CBK0024 delivers factory-assembled reliability without factory limitations. This complete crankshaft assembly arrives ready for...09210282- SKU:
- 09210282
- Availability:
- Ships Same Business Day
- Weight:
- 12.25 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
$531.95 -
HOT RODS Crankshaft Kit CBK0022
HOT RODS
$423.95If you're building a high-performance engine or need a reliable replacement crankshaft assembly, the HOT RODS Crankshaft Kit CBK0022 delivers factory-spec precision with proven durability. This complete assembly arrives ready to install, eliminating the...09210280- SKU:
- 09210280
- Availability:
- Ships Same Business Day
- Weight:
- 8.18 LBS
- TYPE:
- OEM
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
$423.95 -
HOT RODS Crankshaft Kit CBK0021
HOT RODS
$397.95If you're building a high-performance engine or restoring a classic with serious power ambitions, a quality crankshaft assembly is non-negotiable. The HOT RODS Crankshaft Kit CBK0021 delivers factory-matched precision without compromise, arriving fully...09210279- SKU:
- 09210279
- Availability:
- Ships Same Business Day
- Weight:
- 8.75 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$397.95 -
HOT RODS Crankshaft Kit CBK0020
HOT RODS
$397.95If you're building a high-performance engine or pushing your existing platform to the limit, a quality crankshaft assembly is non-negotiable. The HOT RODS Crankshaft Kit CBK0020 delivers factory-spec precision with verified performance gains, giving you...09210278- SKU:
- 09210278
- Availability:
- Ships Same Business Day
- Weight:
- 9.35 LBS
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CRANKSHAFT KIT
- UNITS:
- KIT
$397.95 -
HOT RODS Crankshaft Kit CBK0019
HOT RODS
$397.95If you're building a high-performance engine or restoring a classic with modern reliability, a quality crankshaft assembly is non-negotiable. The HOT RODS Crankshaft Kit CBK0019 ships factory-assembled and tested to OEM specifications, eliminating...09210277- SKU:
- 09210277
- Availability:
- Ships Same Business Day
- Weight:
- 8.65 LBS
- TYPE:
- OEM
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$397.95 -
HOT RODS Crankshaft Kit CBK0018
HOT RODS
$397.95If you're building or rebuilding an engine for serious performance, your crankshaft needs to handle extreme loads without compromise. The HOT RODS Crankshaft Kit CBK0018 delivers factory-matched precision with the durability to exceed OEM specifications,...09210276- SKU:
- 09210276
- Availability:
- Ships Same Business Day
- Weight:
- 8.80 LBS
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
$397.95 -
HOT RODS Crankshaft Kit CBK0017
HOT RODS
$741.95If you're building a high-performance engine or need to replace a worn crankshaft assembly, the HOT RODS Crankshaft Kit CBK0017 delivers factory-matched reliability with the durability demanded by serious racers and engine builders. This complete,...09210275- SKU:
- 09210275
- Availability:
- Ships Same Business Day
- Weight:
- 12.90 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- TYPE:
- OEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$741.95 -
HOT RODS Crankshaft Kit CBK0015
HOT RODS
$595.95If you're building a high-displacement engine or need a crankshaft assembly that meets OEM specs without compromise, the HOT RODS Crankshaft Kit CBK0015 delivers factory-assembled reliability with performance that matches or exceeds stock specifications...09210274- SKU:
- 09210274
- Availability:
- Ships Same Business Day
- Weight:
- 12.40 LBS
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OEM
- UNITS:
- KIT
$595.95Qty in Cart: 0Quantity:Price:$595.95Subtotal:
