ATV/UTV Crankshafts and Parts
ATV/UTV Crankshafts & Parts at JJ Motorsports
Rebuild your ATV/UTV crankshaft for maximum reliability and performance with premium kits from JJ Motorsports, featuring balanced, heavy-duty assemblies and components for Yamaha Blaster, Banshee, and similar 2-stroke models. These high-quality crankshafts deliver smooth rotation and high-RPM durability in off-road and racing conditions.
Shop Hot Rods and Wiseco crankshafts for race-proven strength. Explore related categories such as ATV/UTV engine for pistons and gaskets, or ATV/UTV for exhaust and suspension to complete your bottom-end rebuild and ride with total confidence across all conditions, from high-speed dunes to technical trails.
Top ATV/UTV Crankshafts & Parts
- Hot Rods Crankshaft Kit CBK0218 – Complete crankshaft kit with bearings and seals; fits Yamaha Blaster for stock rebuilds.
- Hot Rods Crankshaft Kit CBK0221 – Heavy-duty kit with stroker crank; boosts displacement for Banshee performance builds.
- Wiseco Crankshaft WPC148 – Forged crankshaft for 2-stroke engines; precision-balanced for Suzuki LT250R and Kawasaki KX models.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HOT RODS Crankshaft Kit CBK0215
HOT RODS
$1,164.95If you're serious about maximizing displacement and torque output without a complete engine rebuild, a stroker crankshaft is one of the most cost-effective power adders available. The HOT RODS CBK0215 arrives factory-assembled and trued to OEM...09210596- SKU:
- 09210596
- Availability:
- Ships Same Business Day
- Weight:
- 19.40 LBS
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT
$1,164.95 -
HOT RODS Crankshaft Kit CBK0216
HOT RODS
$1,297.95If you're serious about maximizing displacement and low-end torque without a complete engine rebuild, a stroker crankshaft is one of the most cost-effective upgrades available. The HOT RODS CBK0216 arrives factory-assembled, trued to OEM specifications,...09210594- SKU:
- 09210594
- Availability:
- Ships Same Business Day
- Weight:
- 19.45 LBS
- PRODUCT NAME:
- CRANKSHAFT
- RIDING STYLE:
- UTV
- UNITS:
- KIT
$1,297.95 -
HOT RODS Crankshaft Kit 4412
HOT RODS
$927.95If you're building a long-stroke engine for your ATV, you need a crankshaft assembly engineered to handle the increased demands of extended stroke geometry. The HOT RODS Crankshaft Kit 4412 arrives factory-assembled, trued to OEM specifications, and...09210513- SKU:
- 09210513
- Availability:
- Ships Same Business Day
- Weight:
- 15.30 LBS
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- 66.00 MM
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- DISPLACEMENT:
- 750 CC
- FEATURES:
- STANDARD CRANKSHAFT
- RIDING STYLE:
- UTV
- TYPE:
- OEM STROKE
- MODEL:
- 4-CYCLE
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
$927.95 -
HOT RODS Crankshaft Kit CBK0109
HOT RODS
$662.95If you're building or rebuilding an engine that demands reliability under extreme conditions, the HOT RODS Crankshaft Kit CBK0109 delivers OEM-spec performance without compromise. This factory-assembled complete unit pairs a precision-engineered...09210350- SKU:
- 09210350
- Availability:
- Ships Same Business Day
- Weight:
- 12.59 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- ATV
- TYPE:
- OEM
$662.95 -
HOT RODS Crankshaft - Stroker 4160
HOT RODS
$645.95If you're serious about maximizing displacement and low-end torque on your ATV, a stroker crankshaft is one of the most effective bolt-on upgrades available. The HOT RODS Crankshaft – Stroker 4160 arrives factory-assembled and trued to OEM...09210048- SKU:
- 09210048
- Availability:
- Ships Same Business Day
- Weight:
- 10.37 LBS
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 67.80 MM
- DISPLACEMENT:
- 471 CC
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- MODEL:
- 4-CYCLE
- STROKE LENGTH:
- 67,80 MM
- TYPE:
- STROKER
$645.95 -
HOT RODS Crankshaft 4073
HOT RODS
$476.95If you're building a long-stroke engine for your ATV, the HOT RODS Crankshaft 4073 eliminates the guesswork and machine work typically required for displacement upgrades. This complete assembly arrives factory-assembled and trued to OEM specifications,...09210044- SKU:
- 09210044
- Availability:
- Ships Same Business Day
- Weight:
- 9.38 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- COLOR/FINISH:
- STEEL
- TYPE:
- OEM STROKE
- MODEL:
- 4-CYCLE
- RIDING STYLE:
- ATV
- UNITS:
- ASSEMBLY
- DISPLACEMENT:
- 450 CC
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- 63.40 MM
$476.95 -
HOT RODS Crankshaft - Stroker 4173
HOT RODS
$645.95If you're serious about extracting maximum displacement and low-end torque from your ATV, a stroker crankshaft is one of the most effective bolt-on upgrades available. The HOT RODS Crankshaft 4173 arrives fully assembled, trued to OEM specifications, and...09210043- SKU:
- 09210043
- Availability:
- Ships Same Business Day
- Weight:
- 9.02 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- DISPLACEMENT:
- 470 CC TO 471 CC
- MODEL:
- 4-CYCLE
- RIDING STYLE:
- ATV
- STROKE LENGTH:
- 66,40 MM
- STROKE LENGTH METRIC:
- 66.40 MM
- COLOR/FINISH:
- STEEL
- TYPE:
- STROKER
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
$645.95 -
HOT RODS Crankshaft 4070
HOT RODS
$476.95If you're building a long-stroke engine for your ATV, you need a crankshaft engineered to handle increased displacement and sustained performance demands. The HOT RODS Crankshaft 4070 arrives completely assembled, trued to OEM specifications, and ready...09210042- SKU:
- 09210042
- Availability:
- Ships Same Business Day
- Weight:
- 10.37 LBS
- DISPLACEMENT:
- 450 CC
- MODEL:
- 4-CYCLE
- TYPE:
- OEM STROKE
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- STROKE LENGTH METRIC:
- 62.00 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$476.95 -
HOT RODS Crankshaft - Stroker 4170
HOT RODS
$645.95Increasing displacement is one of the most direct paths to more power, and the HOT RODS Crankshaft - Stroker 4170 delivers measurable gains without the machine work typically required for long-stroke builds. This purpose-built stroker crankshaft is...09210041- SKU:
- 09210041
- Availability:
- Ships Same Business Day
- Weight:
- 10.21 LBS
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- STROKE LENGTH METRIC:
- 65.00 MM
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH:
- 65,00 MM
- TYPE:
- STROKER
- DISPLACEMENT:
- 470 CC
- MATERIAL:
- 4140 STEEL
- MODEL:
- 4-CYCLE
- UNITS:
- ASSEMBLY
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ATV
$645.95Qty in Cart: 0Quantity:Price:$645.95Subtotal: -
HOT RODS Crankshaft 4259
HOT RODS
$660.95If you're serious about maximizing displacement and power output on your ATV without extensive machine work, the HOT RODS Crankshaft 4259 delivers a proven long-stroke solution. This purpose-built crankshaft eliminates the custom fabrication and costly...09210211- SKU:
- 09210211
- Availability:
- Ships Same Business Day
- Weight:
- 9.70 LBS
- MODEL:
- 4-CYCLE
- TYPE:
- STROKER
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- DISPLACEMENT:
- 424 CC
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH:
- 66.60 MM
- STROKE LENGTH METRIC:
- 66.60 MM
$660.95 -
HOT RODS Crankshaft Assembly 4043
HOT RODS
$622.95If you're building a high-performance long-stroke engine for your ATV, the HOT RODS Crankshaft Assembly 4043 delivers the durability and precision engineering that separates reliable builds from repeated failures. This complete assembly arrives...09210006- SKU:
- 09210006
- Availability:
- Ships Same Business Day
- Weight:
- 10.60 LBS
- COLOR/FINISH:
- STEEL
- DISPLACEMENT:
- 350 CC
- RIDING STYLE:
- ATV
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- 64.50 MM
- UNITS:
- ASSEMBLY
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- MODEL:
- 4-CYCLE
- TYPE:
- OEM STROKE
$622.95 -
HOT RODS Crankshaft Assembly - Stroker 4107
HOT RODS
$563.95If you're building a high-displacement ATV engine or need a crankshaft assembly that's been proven in demanding conditions, the HOT RODS Stroker 4107 delivers the durability and performance you need without the machine work typically required for...09210008- SKU:
- 09210008
- Availability:
- Ships Same Business Day
- Weight:
- 8.30 LBS
- COLOR/FINISH:
- STEEL
- DISPLACEMENT:
- 260 CC
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 76.00 MM
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- FEATURES:
- STANDARD CRANKSHAFT
- MODEL:
- 2-CYCLE
- STROKE LENGTH:
- 76,00 MM
- TYPE:
- STROKER
$563.95 -
Wiseco Crankshaft Kit for 2002-2008 Yamaha YFM660 Grizzly WPC148
WISECO
$666.95The Wiseco WPC148 crankshaft kit is purpose-built for the 2002-2008 Yamaha YFM660 Grizzly to deliver the reliability and precision your engine demands. Whether you're rebuilding after high-mileage use or upgrading to maximize performance, this complete...09210147- SKU:
- 09210147
- Availability:
- Ships Same Business Day
- Weight:
- 19.02 LBS
- RIDING STYLE:
- UTV
- TYPE:
- BOTTOM END
- UNITS:
- KIT
- FEATURES:
- INCLUDES BEARING AND GASKET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 84.00 MM
$666.95 -
MOOSE RACING Crankcase Bearing and Seal Kit 24-1005
MOOSE RACING
$86.95A worn or damaged crankshaft bearing can compromise engine reliability and performance, leading to increased friction, heat, and potential catastrophic failure. The MOOSE RACING Crankcase Bearing and Seal Kit 24-1005 delivers OEM-quality precision...A241005- SKU:
- A241005
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING KIT
- RIDING STYLE:
- ATV
- TYPE:
- CRANK
$86.95Qty in Cart: 0Quantity:Price:$86.95Subtotal: -
HOT RODS Crankshaft Kit 4418
HOT RODS
$488.95If you're building a long-stroke engine for your ATV, reliability starts with a quality crankshaft assembly. The HOT RODS Crankshaft Kit 4418 arrives factory-assembled and trued to OEM specifications, eliminating guesswork and machine work typically...09210578- SKU:
- 09210578
- Availability:
- Ships Same Business Day
- Weight:
- 13.25 LBS
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- 71.50 MM
- COLOR/FINISH:
- STEEL
- FEATURES:
- STANDARD CRANKSHAFT
- TYPE:
- OEM STROKE
- MODEL:
- 4-CYCLE
- RIDING STYLE:
- ATV
- UNITS:
- ASSEMBLY
- DISPLACEMENT:
- 420 CC
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
$488.95 -
HOT RODS Crankshaft Kit 4089
HOT RODS
$908.95A long-stroke crankshaft kit unlocks measurable gains in low-end torque and overall engine responsiveness—critical for ATV racing where power delivery consistency determines race outcomes. The HOT RODS 4089 arrives factory-assembled and trued to OEM...09210498- SKU:
- 09210498
- Availability:
- Ships Same Business Day
- Weight:
- 15.25 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ATV
- MATERIAL:
- 4140 STEEL
- MODEL:
- 4-CYCLE
- STROKE LENGTH METRIC:
- 66.00 MM
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- DISPLACEMENT:
- 700 CC TO 750 CC
- FEATURES:
- STANDARD CRANKSHAFT
- RIDING STYLE:
- UTV
- TYPE:
- OEM STROKE
$908.95 -
Wiseco Crankshaft Kit for Honda TRX400EX 1999-2004 WPC131A
WISECO
$584.95A worn or damaged crankshaft compromises engine reliability and performance across the board—acceleration suffers, power delivery becomes inconsistent, and you risk catastrophic internal failure. The Wiseco WPC131A delivers a complete, ready-to-install...09210118- SKU:
- 09210118
- Availability:
- Ships Same Business Day
- Weight:
- 14.50 LBS
- FEATURES:
- INCLUDES BEARING AND GASKET
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ATV
- TYPE:
- BOTTOM END
- MATERIAL:
- STEEL
- UNITS:
- KIT
$584.95Qty in Cart: 0Quantity:Price:$584.95Subtotal: -
Wiseco Crankshaft Kit Honda TRX400X 2009-2014 WPC131B
WISECO
$584.95If you're rebuilding the bottom end of your TRX400X, settling for OEM internals limits your potential for reliability and consistent performance under load. This Wiseco kit delivers factory-assembled precision with shot-peened surfaces and engineered...09210478- SKU:
- 09210478
- Availability:
- Ships Same Business Day
- Weight:
- 14.25 LBS
- RIDING STYLE:
- ATV
- TYPE:
- BOTTOM END
- MATERIAL:
- STEEL
- UNITS:
- KIT
- FEATURES:
- INCLUDES BEARING AND GASKET
- PRODUCT NAME:
- CRANKSHAFT KIT
$584.95Qty in Cart: 0Quantity:Price:$584.95Subtotal: -
Wiseco Crankshaft Assembly for 2005-2013 Yamaha Raptor 350 WPC137
WISECO
$554.95Whether you're rebuilding a tired 350cc engine or pushing your Raptor's performance envelope, a quality crankshaft assembly is non-negotiable. The Wiseco WPC137 delivers factory-spec reliability with precision engineering that handles sustained high-RPM...09210145- SKU:
- 09210145
- Availability:
- Ships Same Business Day
- Weight:
- 13.51 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- FEATURES:
- INCLUDES BEARING AND GASKET
- STROKE LENGTH METRIC:
- 64.50 MM
- TYPE:
- BOTTOM END
$554.95Qty in Cart: 0Quantity:Price:$554.95Subtotal: -
HOT RODS Crankshaft - Stroker 4186
HOT RODS
$364.95If you're serious about maximizing displacement and low-end torque in your four-stroke ATV, a stroker crankshaft is one of the most effective bolt-on upgrades available. The HOT RODS 4186 Stroker Crankshaft delivers factory-assembled reliability without...09210429- SKU:
- 09210429
- Availability:
- Ships Same Business Day
- Weight:
- 9.45 LBS
- COLOR/FINISH:
- STEEL
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 65.10 MM
- MODEL:
- 4-CYCLE
- STROKE LENGTH:
- 65,10 MM
- UNITS:
- ASSEMBLY
- DISPLACEMENT:
- 471 CC
- TYPE:
- STROKER
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
$364.95
