Dirt Bike Engine Bearings
Dirt Bike Engine Bearings & Crank Bearing Kits for Yamaha, Honda & Beta at JJ Motorsports
Rebuild your dirt bike's bottom end with premium crankshaft bearings, needle bearings, and complete seal kits from JJ Motorsports — precision-engineered for perfect fit, reduced friction, and extreme durability in motocross, enduro, and trail riding. Our selection includes high-quality main bearings, crank bearing/seal kits, and needle bearings designed to handle high RPM, high heat, and heavy loads while restoring smooth, quiet operation. Compatible with top models like Yamaha YZ/WR, Honda CRF/CR, Beta RR, and more, these components from trusted brands deliver OEM or better performance with upgraded materials that outlast stock bearings in dusty, abusive conditions. Whether you're splitting the cases for a full rebuild or just replacing worn mains, these kits give you everything — bearings, seals, and gaskets — for factory-fresh feel and championship-level reliability.
At JJ Motorsports, we stock the best dirt bike engine bearings and crank kits from Moose Racing, Shindy, and Vintco with fast shipping and expert support. Free shipping over $99!
Top Dirt Bike Engine Bearings & Kits
- Shindy Needle Bearing 16 mm x 21 mm x 23 mm Yamaha 10-301 – High-quality needle bearing for Yamaha models; exact OEM spec for shock linkage and swingarm applications.
- Moose Offroad Crank Bearing & Seal Kit Beta 24-1128 – Complete crank bearing and seal kit for Beta RR models; includes both sides for full bottom-end refresh.
- Vintco Main Bearing and Seal Kit Honda KMB034 – Premium main bearing and crank seal kit for vintage Honda models; perfect for classic CR and XR restoration with modern durability.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping over $99! Questions? Contact us for fitment advice!
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- Price
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HOT RODS Main Bearing Seal Kit - Can-Am HR00101
HOT RODS
$123.95A quality main bearing seal kit is essential when rebuilding your crankshaft assembly—it ensures proper lubrication retention and prevents oil leakage that can compromise engine integrity. The HOT RODS Main Bearing Seal Kit for Can-Am delivers...09240639- SKU:
- 09240639
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$123.95 -
HOT RODS Main Bearing Seal Kit - Can-Am HR00102
HOT RODS
$190.95Main bearing seals are critical wear items that directly impact crankshaft longevity and engine reliability. Worn or degraded seals allow contaminants and oil leakage that accelerate bearing failure and compromise performance. This HOT RODS kit provides...09240640- SKU:
- 09240640
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$190.95 -
HOT RODS Plain Bearing Crankshaft - Can-Am HR00103
HOT RODS
$62.95A worn or damaged crankshaft compromises engine reliability and performance—forcing costly downtime and potential catastrophic failure. The HOT RODS Plain Bearing Crankshaft (HR00103) delivers OEM-equivalent durability with the precision engineering...09240641- SKU:
- 09240641
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$62.95 -
HOT RODS Plain Bearing Crankshaft - Can-Am HR00104
HOT RODS
$62.95A worn or damaged crankshaft compromises engine reliability and performance across the board—throttle response suffers, bearing wear accelerates, and catastrophic failure becomes a real risk. The HOT RODS Plain Bearing Crankshaft (HR00104) is engineered...09240642- SKU:
- 09240642
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$62.95 -
HOT RODS Crankshaft Bearings - Honda K073
HOT RODS
$83.95A crankshaft rebuild demands precision-matched bearings and seals—using inferior components will compromise oil pressure, increase friction, and risk catastrophic engine failure. The HOT RODS K073 bearing kit delivers OEM-grade reliability with tight...09240248- SKU:
- 09240248
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
$83.95 -
SHINDY Needle Bearing - 16 mm x 21 mm x 23 mm - Yamaha 10-301
SHINDY
$11.95Piston pin needle bearings are critical to engine reliability, especially in high-RPM applications where precision tolerances demand perfection. This SHINDY bearing delivers the exact dimensions and manufacturing standards your Yamaha engine requires,...NB1455- SKU:
- NB1455
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$11.95 -
Wossner Universal Small End Bearing 16 mm x 20 mm x 19.5 mm N1013
WOSSNER
$18.50Small-end bearing wear is one of the most common failure points in high-performance engine builds, leading to catastrophic rod failure if left unchecked. The Wossner N1013 is a precision needle bearing engineered to handle the extreme radial loads and...09240452- SKU:
- 09240452
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$18.50 -
MOOSE OFFROAD Crank Bearing/Seal Kit - Beta 24-1122
MOOSE OFFROAD
$59.95Your crankshaft is the heart of your engine's reliability and longevity. Worn or damaged crank bearings accelerate internal wear, reduce power transmission efficiency, and can lead to catastrophic engine failure. The MOOSE OFFROAD Crank Bearing/Seal Kit...09240643- SKU:
- 09240643
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
$59.95 -
MOOSE OFFROAD Crank Bearing/Seal Kit - Beta 24-1123
MOOSE OFFROAD
$79.95A worn or failing crankshaft bearing kit compromises engine reliability and performance—especially critical in 2-stroke engines where precision tolerances are unforgiving. The MOOSE OFFROAD Crank Bearing/Seal Kit keeps your crankshaft spinning true with...09240644- SKU:
- 09240644
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
$79.95 -
MOOSE OFFROAD Crank Bearing/Seal Kit - Beta 24-1128
MOOSE OFFROAD
$109.95Worn crankshaft bearings compromise engine reliability and performance—replace them before catastrophic failure occurs. This complete bearing and seal kit restores optimal crankshaft clearances and eliminates leakage points, critical for maintaining...09240645- SKU:
- 09240645
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
$109.95 -
MOOSE OFFROAD Crank Bearing/Seal Kit - Beta 24-1129
MOOSE OFFROAD
$24.95A worn or damaged crank bearing is a ticking time bomb for any 2-stroke or 4-stroke engine—it compromises power delivery, increases friction, and accelerates wear on your entire drivetrain. The MOOSE OFFROAD Crank Bearing/Seal Kit restores precision...09240646- SKU:
- 09240646
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
$24.95Qty in Cart: 0Quantity:Price:$24.95Subtotal: -
VINTCO Main Bearing and Seal Kit - Honda KMB001
VINTCO
$49.95A complete crankshaft installation demands precision-engineered bearings and seals that can handle sustained high-RPM loads without compromise. The VINTCO Main Bearing and Seal Kit delivers OEM-quality Japanese manufacturing, ensuring your engine's...09240649- SKU:
- 09240649
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
$49.95 -
VINTCO Main Bearing and Seal Kit - Honda KMB002
VINTCO
$29.95A worn or failing crankshaft bearing kit will cause increased friction, metal-to-metal contact, and catastrophic engine damage if left unaddressed. The VINTCO KMB002 delivers OEM-grade bearings and seals engineered to maintain precise clearances and...09240650- SKU:
- 09240650
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
$29.95 -
VINTCO Main Bearing and Seal Kit - Honda KMB030
VINTCO
$54.95A worn or damaged crankshaft bearing can compromise engine durability and performance, leading to catastrophic failure if left unaddressed. This VINTCO Main Bearing and Seal Kit delivers OEM-equivalent components engineered to restore proper crankshaft...09240652- SKU:
- 09240652
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
$54.95 -
VINTCO Main Bearing and Seal Kit - Honda KMB004
VINTCO
$49.95A crankshaft rebuild demands precision bearings and seals that won't compromise reliability under sustained load and RPM. The VINTCO KMB004 kit eliminates the guesswork of sourcing individual components by pairing OEM-spec bearings with matched seals...09240653- SKU:
- 09240653
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
$49.95 -
VINTCO Main Bearing and Seal Kit - Honda KMB005
VINTCO
$49.95A proper crankshaft installation hinges on quality bearings and seals—cheap or worn components can lead to bearing failure, oil leaks, and catastrophic engine damage. The VINTCO Main Bearing and Seal Kit delivers OEM-grade reliability with premium...09240654- SKU:
- 09240654
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
$49.95 -
VINTCO Main Bearing and Seal Kit - Honda KMB006
VINTCO
$47.95Main bearing and seal failure compromises engine reliability and can lead to catastrophic damage if left unaddressed. The VINTCO KMB006 kit delivers OEM-spec components engineered for precise crankshaft fitment, ensuring proper load distribution and oil...09240655- SKU:
- 09240655
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
$47.95 -
VINTCO Main Bearing and Seal Kit - Honda KMB034
VINTCO
$54.95A quality crankshaft installation demands precision-matched bearings and seals that maintain proper clearances and prevent oil leakage under high RPM stress. The VINTCO KMB034 kit delivers OEM-grade Japanese manufacturing, ensuring your engine achieves...09240656- SKU:
- 09240656
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
$54.95 -
VINTCO Main Bearing and Seal Kit - Honda KMB032
VINTCO
$54.95A worn or improperly installed crankshaft bearing and seal assembly can lead to catastrophic engine failure, metal-on-metal contact, and catastrophic loss of oil pressure. The VINTCO KMB032 Main Bearing and Seal Kit provides OEM-quality components...09240657- SKU:
- 09240657
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
$54.95 -
VINTCO Main Bearing and Seal Kit - Honda KMB031
VINTCO
$44.95A failing crankshaft seal or worn main bearing will compromise engine reliability and performance—and catching these issues early requires a complete, quality bearing and seal kit. The VINTCO KMB031 gives you factory-spec components engineered...09240658- SKU:
- 09240658
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
$44.95
