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
-
MOOSE RACING Intake Valve Kit M60-60460
MOOSE RACING
$196.95Stainless steel conversion kits include only what’s needed to convert your head to the long-life stainless steel Black Diamond intake valves, Extend the life of the valve train and intake components by as much as 4x over the OEM titanium parts, Valves...09262448- SKU:
- 09262448
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
$196.95 -
MOOSE RACING Intake Valve Kit M60-60470
MOOSE RACING
$217.95Stainless steel conversion kits include only what’s needed to convert your head to the long-life stainless steel Black Diamond intake valves, Extend the life of the valve train and intake components by as much as 4x over the OEM titanium parts, Valves...09262449- SKU:
- 09262449
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$217.95 -
MOOSE RACING Valve and Spring Kit M60-61160
MOOSE RACING
$196.95Stainless steel conversion kits include only what’s needed to convert your head to the long-life stainless steel Black Diamond intake valves, Extend the life of the valve train and intake components by as much as 4x over the OEM titanium parts, Valves...09262454- SKU:
- 09262454
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE AND SPRING KIT
$196.95 -
MOOSE RACING Valve and Spring Kit M60-61260
MOOSE RACING
$196.95Stainless steel conversion kits include only what’s needed to convert your head to the long-life stainless steel Black Diamond intake valves, Extend the life of the valve train and intake components by as much as 4x over the OEM titanium parts, Valves...09262455- SKU:
- 09262455
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE AND SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
$196.95 -
MOOSE RACING Valve Kit M30-32270
MOOSE RACING
$274.95Kitted sets of intake and exhaust valves designed to match the OE material specifications for drop-in compatibility (no need to reconfigure spring pack from OE specs), Valves are constructed of Tensilite Titanium and Black Diamond Stainless Steel...09262576- SKU:
- 09262576
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MATERIAL:
- TITANIUM
- APPLICATION:
- INTAKE
- MODEL:
- PRO
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
$274.95 -
MOOSE RACING Crank Bearing - YZ 65/85 24-1117
MOOSE RACING
$53.95Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines09240604- SKU:
- 09240604
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- PRODUCT NAME:
- BEARING
- UNITS:
- KIT
- APPLICATION:
- CRANKSHAFT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- BALL
$53.95 -
MOOSE RACING Crank Bearing - KXF/RMZ 24-1081
MOOSE RACING
$56.95Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines09240103- SKU:
- 09240103
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- BALL
- APPLICATION:
- CRANKSHAFT
$56.95 -
MOOSE RACING Complete Motor Gasket Kit - KTM/Husqvarna 808330
MOOSE RACING
$88.86Moose can now handle all your gasket and seal needs at a fraction of OEM cost., High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09341684- SKU:
- 09341684
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
$88.86 -
MOOSE RACING Complete Motor Gasket Kit - KTM/Husqvarna 808333
MOOSE RACING
$87.56Moose can now handle all your gasket and seal needs at a fraction of OEM cost., High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09341685- SKU:
- 09341685
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- TYPE:
- ENGINE
$87.56 -
MOOSE RACING Complete Motor Gasket Kit - KTM/Husaberg/Husqvarna 250 808334
MOOSE RACING
$90.50Moose can now handle all your gasket and seal needs at a fraction of OEM cost., High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09341686- SKU:
- 09341686
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- ENGINE
$90.50 -
MOOSE RACING Complete Motor Gasket Kit - KTM/Husaberg/Husqvarna 300 808335
MOOSE RACING
$80.32Moose can now handle all your gasket and seal needs at a fraction of OEM cost., High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09341687- SKU:
- 09341687
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
$80.32 -
MOOSE RACING Complete Motor Gasket Kit - KX85 808419
MOOSE RACING
$58.40Moose can now handle all your gasket and seal needs at a fraction of OEM cost., High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09341689- SKU:
- 09341689
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
$58.40 -
MOOSE RACING Top End Gasket Kit - 250SX/XC 810333
MOOSE RACING
$47.28Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09341690- SKU:
- 09341690
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$47.28Qty in Cart: 0Quantity:Price:$47.28Subtotal: -
MOOSE RACING Top End Gasket Kit - 300/XC/XCW 810335
MOOSE RACING
$40.11Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09341691- SKU:
- 09341691
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$40.11 -
MOOSE RACING Motor Seals - KX/RM 65 822135
MOOSE RACING
$25.63Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...M822135- SKU:
- M822135
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- APPLICATION:
- ENGINE
- UNITS:
- SET
- PRODUCT NAME:
- SEAL
- TYPE:
- OIL
- RIDING STYLE:
- OFF-ROAD
$25.63 -
MOOSE RACING Clutch Cover Gasket 816547
MOOSE RACING
$11.64Moose can now handle all your gasket and seal needs at a fraction of OEM cast, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmissions with total confidence as each set is designed for durability and...09340572- SKU:
- 09340572
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
$11.64 -
MOOSE RACING Clutch Cover Gasket 816590
MOOSE RACING
$10.66Moose can now handle all your gasket and seal needs at a fraction of OEM cast, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmissions with total confidence as each set is designed for durability and...09340573- SKU:
- 09340573
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
- UNITS:
- EACH
- PRODUCT NAME:
- GASKET
$10.66 -
MOOSE RACING Ignition Cover Gasket 816589
MOOSE RACING
$8.13Moose can now handle all your gasket and seal needs at a fraction of OEM cost, Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit, Oil seals are genuine OEM replacement seals, These...09340575- SKU:
- 09340575
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION COVER
$8.13 -
MOOSE RACING Clutch Cover Gasket 817731
MOOSE RACING
$12.09Moose can now handle all your gasket and seal needs at a fraction of OEM cast, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmissions with total confidence as each set is designed for durability and...09340578- SKU:
- 09340578
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
$12.09 -
MOOSE RACING Top End Gasket Kit - KX250 810464
MOOSE RACING
$46.75Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09340333- SKU:
- 09340333
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
$46.75
