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Dirt Bike Engine

Dirt Bike Engine

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 Complete Gasket and Oil Seal Kit 811372

    MOOSE RACING Complete Gasket and Oil Seal Kit 811372

    MOOSE RACING

    $181.46
    Moose 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, Sets include...
    09345368
    SKU:
    09345368
    Availability:
    Ships Same Business Day
    Weight:
    0.56 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    TYPE:
    ENGINE
    $181.46
    Qty in Cart: 0
    Quantity:
    Price:
    $181.46
    Subtotal:
  • MOOSE RACING Oil Filter DT-10-35

    MOOSE RACING Oil Filter DT-10-35

    MOOSE RACING

    $9.95
    High-quality replacement for your standard filter, Can filter down to 10 microns, Constructed with high-quality paper filter materials, Manufactured with sealing ring to ensure perfect fit, Offers maximum protection and long-lasting filter life, May be...
    07120357
    SKU:
    07120357
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    ATV
    TYPE:
    CARTRIDGE
    UNITS:
    EACH
    FILTER MEDIA MATERIAL:
    PAPER
    MICRON RATING:
    10 MICRONS
    PRODUCT NAME:
    OIL FILTER
    STYLE:
    STANDARD
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • Wiseco Piston Kit 48.50mm for Suzuki RM85 2002-2023 806M04850

    Wiseco Piston Kit 48.50mm for Suzuki RM85 2002-2023 806M04850

    WISECO

    $119.95
    Upgrade your engine's performance with the WISECO Piston Kit 806M04850, designed for durability and precision. This high-quality piston kit enhances power and efficiency, ensuring a smoother ride and improved throttle response. Please note that this kit...
    09101248
    SKU:
    09101248
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE - OVERSIZE:
    +0,50 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    48.50 MM
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    RIDING STYLE:
    OFF-ROAD
    DISPLACEMENT:
    84.7 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    46.80 MM
    UNITS:
    EACH
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    $119.95
    Qty in Cart: 0
    Quantity:
    Price:
    $119.95
    Subtotal:
  • Wiseco Yamaha Blaster 200 1988-2006 Piston Kit with Gaskets PK1098

    Wiseco Yamaha Blaster 200 1988-2006 Piston Kit with Gaskets PK1098

    WISECO

    $219.95
    Upgrade your engine's performance with the WISECO Piston Kit, designed for high durability and efficiency. This complete kit includes everything you need for a successful installation, ensuring optimal power and reliability in your 2-cycle engine. ...
    09030453
    SKU:
    09030453
    Availability:
    Ships Same Business Day
    Weight:
    1.13 LBS
    BORE - OVERSIZE:
    +2,25 MM
    BORE SIZE METRIC:
    68.25 MM
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE METRIC:
    +2.25 MM
    DISPLACEMENT:
    195 CC
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    PISTON DIAMETER METRIC:
    68.20 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    57.00 MM
    UNITS:
    KIT
    PRODUCT NAME:
    REBUILD KIT
    $219.95
    Qty in Cart: 0
    Quantity:
    Price:
    $219.95
    Subtotal:
  • Wiseco Piston Kit with Gaskets for Yamaha YFS200 Blaster 1988-2006 66.75mm PK1092

    Wiseco Piston Kit with Gaskets for Yamaha YFS200 Blaster 1988-2006 66.75mm PK1092

    WISECO

    $204.95
    Enhance your engine's performance with the WISECO Piston Kit, designed specifically for 2-cycle engines. Crafted from high-silicone forged bar stock, this kit ensures superior strength and minimal thermal expansion, making it ideal for high-performance...
    09030454
    SKU:
    09030454
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    BORE SIZE METRIC:
    66.75 MM
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    57.00 MM
    BORE - OVERSIZE:
    +0,75 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +0.75 MM
    DISPLACEMENT:
    195 CC
    ENGINE TYPE:
    2-STROKE
    MODEL:
    PRO-LITE
    RIDING STYLE:
    ATV
    TYPE:
    TOP END
    PISTON DIAMETER METRIC:
    66.70 MM
    PRODUCT NAME:
    REBUILD KIT
    $204.95
    Qty in Cart: 0
    Quantity:
    Price:
    $204.95
    Subtotal:
  • SHINDY Needle Bearing - 16 mm x 20 mm x 19 mm 10-352

    SHINDY Needle Bearing - 16 mm x 20 mm x 19 mm 10-352

    SHINDY

    $10.20
    Piston pin needle cage bearings are manufactured from precision bearings and high-quality housing material, Each bearing is packaged in an individual box for easy identification
    NB1456
    SKU:
    NB1456
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    APPLICATION:
    PISTON
    LENGTH:
    19 MM
    PRODUCT NAME:
    BEARING
    OUTSIDE DIAMETER METRIC:
    20 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    INSIDE DIAMETER:
    16 MM
    INSIDE DIAMETER METRIC:
    16 MM
    OUTSIDE DIAMETER:
    20 MM
    LENGTH METRIC:
    19 MM
    TYPE:
    NEEDLE
    $10.20
    Qty in Cart: 0
    Quantity:
    Price:
    $10.20
    Subtotal:
  • SHINDY Needle Bearing - 18 mm x 22 mm  x 22 mm 10-001

    SHINDY Needle Bearing - 18 mm x 22 mm x 22 mm 10-001

    SHINDY

    $9.70
    Piston pin needle cage bearings are manufactured from precision bearings and high-quality housing material, Each bearing is packaged in an individual box for easy identification
    NB1457
    SKU:
    NB1457
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    LENGTH METRIC:
    22 MM
    RIDING STYLE:
    UTV
    LENGTH:
    22 MM
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    INSIDE DIAMETER:
    18 MM
    INSIDE DIAMETER METRIC:
    18 MM
    OUTSIDE DIAMETER:
    22 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    EACH
    APPLICATION:
    PISTON
    OUTSIDE DIAMETER METRIC:
    22 MM
    TYPE:
    NEEDLE
    $9.70
    Qty in Cart: 0
    Quantity:
    Price:
    $9.70
    Subtotal:
  • SHINDY Needle Bearing - 15 mm x 19 mm x 17 mm 10-053

    SHINDY Needle Bearing - 15 mm x 19 mm x 17 mm 10-053

    SHINDY

    $9.30
    Piston pin needle cage bearings are manufactured from precision bearings and high-quality housing material, Each bearing is packaged in an individual box for easy identification
    NB1458
    SKU:
    NB1458
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    INSIDE DIAMETER:
    15 MM
    INSIDE DIAMETER METRIC:
    15 MM
    LENGTH:
    17 MM
    OUTSIDE DIAMETER METRIC:
    19 MM
    UNITS:
    EACH
    LENGTH METRIC:
    17 MM
    OUTSIDE DIAMETER:
    19 MM
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    OFF-ROAD
    APPLICATION:
    PISTON
    TYPE:
    NEEDLE
    $9.30
    Qty in Cart: 0
    Quantity:
    Price:
    $9.30
    Subtotal:
  • SHINDY Needle Bearing - 15 mm x 19 mm x 20 mm 10-152

    SHINDY Needle Bearing - 15 mm x 19 mm x 20 mm 10-152

    SHINDY

    $9.70
    Piston pin needle cage bearings are manufactured from precision bearings and high-quality housing material, Each bearing is packaged in an individual box for easy identification
    NB1459
    SKU:
    NB1459
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    LENGTH:
    20 MM
    RIDING STYLE:
    OFF-ROAD
    OUTSIDE DIAMETER:
    19 MM
    PRODUCT NAME:
    BEARING
    INSIDE DIAMETER:
    15 MM
    INSIDE DIAMETER METRIC:
    15 MM
    OUTSIDE DIAMETER METRIC:
    19 MM
    UNITS:
    EACH
    APPLICATION:
    PISTON
    LENGTH METRIC:
    20 MM
    TYPE:
    NEEDLE
    $9.70
    Qty in Cart: 0
    Quantity:
    Price:
    $9.70
    Subtotal:
  • SHINDY Needle Bearing - 15 mm x 20 mm x 18 mm 10-354

    SHINDY Needle Bearing - 15 mm x 20 mm x 18 mm 10-354

    SHINDY

    $14.10
    Piston pin needle cage bearings are manufactured from precision bearings and high-quality housing material, Each bearing is packaged in an individual box for easy identification
    NB1460
    SKU:
    NB1460
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    LENGTH:
    18 MM
    OUTSIDE DIAMETER:
    20 MM
    INSIDE DIAMETER:
    15 MM
    INSIDE DIAMETER METRIC:
    15 MM
    LENGTH METRIC:
    18 MM
    OUTSIDE DIAMETER METRIC:
    20 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    APPLICATION:
    PISTON
    PRODUCT NAME:
    BEARING
    TYPE:
    NEEDLE
    $14.10
    Qty in Cart: 0
    Quantity:
    Price:
    $14.10
    Subtotal:
  • SHINDY Needle Bearing - 14 mm x 18 mm x 17.5 mm 10-252

    SHINDY Needle Bearing - 14 mm x 18 mm x 17.5 mm 10-252

    SHINDY

    $9.30
    Piston pin needle cage bearings are manufactured from precision bearings and high-quality housing material, Each bearing is packaged in an individual box for easy identification
    NB1462
    SKU:
    NB1462
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    OUTSIDE DIAMETER METRIC:
    18 MM
    TYPE:
    NEEDLE
    INSIDE DIAMETER:
    14 MM
    INSIDE DIAMETER METRIC:
    14 MM
    LENGTH:
    17,5 MM
    LENGTH METRIC:
    17.5 MM
    UNITS:
    EACH
    APPLICATION:
    PISTON
    OUTSIDE DIAMETER:
    18 MM
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    OFF-ROAD
    $9.30
    Qty in Cart: 0
    Quantity:
    Price:
    $9.30
    Subtotal:
  • SHINDY Needle Bearing - 14 mm x 18 mm x 16.5 mm 10-353

    SHINDY Needle Bearing - 14 mm x 18 mm x 16.5 mm 10-353

    SHINDY

    $8.00
    Piston pin needle cage bearings are manufactured from precision bearings and high-quality housing material, Each bearing is packaged in an individual box for easy identification
    NB1464
    SKU:
    NB1464
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    INSIDE DIAMETER METRIC:
    14 MM
    RIDING STYLE:
    OFF-ROAD
    OUTSIDE DIAMETER:
    18 MM
    PRODUCT NAME:
    BEARING
    LENGTH METRIC:
    16.5 MM
    OUTSIDE DIAMETER METRIC:
    18 MM
    TYPE:
    NEEDLE
    UNITS:
    EACH
    APPLICATION:
    PISTON
    INSIDE DIAMETER:
    14 MM
    LENGTH:
    16,5 MM
    $8.00
    Qty in Cart: 0
    Quantity:
    Price:
    $8.00
    Subtotal:
  • SHINDY Piston Pin Bearing 10-351

    SHINDY Piston Pin Bearing 10-351

    SHINDY

    $11.10
    Piston pin needle cage bearings are manufactured from precision bearings and high-quality housing material, Each bearing is packaged in an individual box for easy identification
    09240006
    SKU:
    09240006
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    APPLICATION:
    PISTON
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    23 MM
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    OFF-ROAD
    LENGTH:
    22 MM
    OUTSIDE DIAMETER:
    23 MM
    TYPE:
    NEEDLE
    UNITS:
    EACH
    INSIDE DIAMETER:
    18 MM
    INSIDE DIAMETER METRIC:
    18 MM
    LENGTH METRIC:
    22 MM
    $11.10
    Qty in Cart: 0
    Quantity:
    Price:
    $11.10
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - YZ 250 810663

    MOOSE RACING Top End Gasket Kit - YZ 250 810663

    MOOSE RACING

    $26.31
    Moose 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...
    M810663
    SKU:
    M810663
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    Qty in Cart: 0
    Quantity:
    Price:
    $26.31
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - YZ 250 810664

    MOOSE RACING Top End Gasket Kit - YZ 250 810664

    MOOSE RACING

    $20.76
    Moose 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...
    M810664
    SKU:
    M810664
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    $20.76
    Qty in Cart: 0
    Quantity:
    Price:
    $20.76
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - YZ 250 810665

    MOOSE RACING Top End Gasket Kit - YZ 250 810665

    MOOSE RACING

    $27.64
    Moose 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...
    M810665
    SKU:
    M810665
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    TYPE:
    TOP END
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $27.64
    Qty in Cart: 0
    Quantity:
    Price:
    $27.64
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - YZ 250 810666

    MOOSE RACING Top End Gasket Kit - YZ 250 810666

    MOOSE RACING

    $34.60
    Moose 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...
    M810666
    SKU:
    M810666
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    TYPE:
    TOP END
    $34.60
    Qty in Cart: 0
    Quantity:
    Price:
    $34.60
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - YZ 250 810668

    MOOSE RACING Top End Gasket Kit - YZ 250 810668

    MOOSE RACING

    $34.60
    Moose 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...
    M810668
    SKU:
    M810668
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    TYPE:
    TOP END
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $34.60
    Qty in Cart: 0
    Quantity:
    Price:
    $34.60
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - YZ 250 810670

    MOOSE RACING Top End Gasket Kit - YZ 250 810670

    MOOSE RACING

    $33.35
    Moose 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...
    M810670
    SKU:
    M810670
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    $33.35
    Qty in Cart: 0
    Quantity:
    Price:
    $33.35
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - 600 Grizzly 811833

    MOOSE RACING Motor Gasket Kit with Seal - 600 Grizzly 811833

    MOOSE RACING

    $169.15
    Moose 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, Sets include...
    M811833
    SKU:
    M811833
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    TYPE:
    COMPLETE
    RIDING STYLE:
    ATV
    TYPE:
    ENGINE
    PRODUCT NAME:
    GASKET
    UNITS:
    KIT
    $169.15
    Qty in Cart: 0
    Quantity:
    Price:
    $169.15
    Subtotal:
  • Total: items /

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Dirt Bike Engine Parts

Keep your dirt bike running smoothly and prolong the life of its engine with essential general maintenance. But when parts start to break down, don't let it stop you from getting out on the trails! JJ Motorsports has all that you need for minor jobs like oil changes or major overhauls such as a complete rebuild - carrying top aftermarket brands . Get back in gear faster by shopping our full line of high-quality dirt bike engine parts here today at JJ Motorsports!

 

At JJ Motorsports, we want to make sure you don't miss out on the ride! If your motor has blown or radiator smashed, our gearheads can help get you back in the seat. We carry piston kits from top brands like Wiseco and Wrench Rabbit engine kits so that riders have access to a wide range of parts for their dirt bike engine rebuilds. Plus – with gaskets at-the-ready when it comes time for any leakages - no need to worry about maintenance issues either; simply stay up on oil & filter changes and let us take care of everything else. Got queries? Just give one of our knowledgeable staff members a call at 1-231‐767‐5055 where they'll be more than happy provide advice, instructions and tailored answers catered just for YOU!

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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