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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
  • EMGO Oil Filter 10-82250

    EMGO Oil Filter 10-82250

    EMGO

    $9.57
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    1082250
    SKU:
    1082250
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    BASE COLOR:
    BLACK
    FILTER MEDIA MATERIAL:
    PAPER
    PRODUCT NAME:
    OIL FILTER
    TYPE:
    SPIN-ON
    FEATURES:
    SPIN-ON
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    $9.57
    Qty in Cart: 0
    Quantity:
    Price:
    $9.57
    Subtotal:
  • EMGO Oil Filter 10-79110

    EMGO Oil Filter 10-79110

    EMGO

    $9.48
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    1079110
    SKU:
    1079110
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    FEATURES:
    STANDARD
    FILTER MEDIA MATERIAL:
    PAPER
    COLOR/FINISH:
    YELLOW
    PRODUCT NAME:
    ELEMENT
    RIDING STYLE:
    STREET
    TYPE:
    OIL FILTER
    BASE COLOR:
    YELLOW
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    $9.48
    Qty in Cart: 0
    Quantity:
    Price:
    $9.48
    Subtotal:
  • EMGO Oil Filter 10-30000

    EMGO Oil Filter 10-30000

    EMGO

    $4.85
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    1030000
    SKU:
    1030000
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    COLOR/FINISH:
    YELLOW
    PRODUCT NAME:
    OIL FILTER
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    STANDARD
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    TYPE:
    CARTRIDGE
    UNITS:
    EACH
    BASE COLOR:
    YELLOW
    FILTER MEDIA MATERIAL:
    PAPER
    $4.85
    Qty in Cart: 0
    Quantity:
    Price:
    $4.85
    Subtotal:
  • EMGO Oil Filter 10-26950

    EMGO Oil Filter 10-26950

    EMGO

    $7.30
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    1026950
    SKU:
    1026950
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    COLOR/FINISH:
    YELLOW
    FEATURES:
    STANDARD
    RIDING STYLE:
    STREET
    FILTER MEDIA MATERIAL:
    PAPER
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CARTRIDGE
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    OIL FILTER
    $7.30
    Qty in Cart: 0
    Quantity:
    Price:
    $7.30
    Subtotal:
  • EMGO Oil Filter 10-82270

    EMGO Oil Filter 10-82270

    EMGO

    $9.50
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    07120418
    SKU:
    07120418
    Availability:
    Ships Same Business Day
    Weight:
    0.36 LBS
    PRODUCT NAME:
    OIL FILTER
    TYPE:
    SPIN-ON
    FEATURES:
    SPIN-ON
    FILTER MEDIA MATERIAL:
    PAPER
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    BASE COLOR:
    BLACK
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    $9.50
    Qty in Cart: 0
    Quantity:
    Price:
    $9.50
    Subtotal:
  • EMGO Oil Filter 10-82260

    EMGO Oil Filter 10-82260

    EMGO

    $7.20
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    07120417
    SKU:
    07120417
    Availability:
    Ships Same Business Day
    Weight:
    0.52 LBS
    FEATURES:
    SPIN-ON
    FILTER MEDIA MATERIAL:
    PAPER
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    PRODUCT NAME:
    OIL FILTER
    RIDING STYLE:
    UTV
    TYPE:
    SPIN-ON
    BASE COLOR:
    BLACK
    COLOR/FINISH:
    BLACK
    $7.20
    Qty in Cart: 0
    Quantity:
    Price:
    $7.20
    Subtotal:
  • EMGO Oil Filter 10-26963

    EMGO Oil Filter 10-26963

    EMGO

    $5.87
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    07120405
    SKU:
    07120405
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    BASE COLOR:
    YELLOW
    COLOR/FINISH:
    YELLOW
    TYPE:
    CARTRIDGE
    FILTER MEDIA MATERIAL:
    PAPER
    PRODUCT NAME:
    OIL FILTER
    RIDING STYLE:
    STREET
    FEATURES:
    STANDARD
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $5.87
    Qty in Cart: 0
    Quantity:
    Price:
    $5.87
    Subtotal:
  • EMGO Oil Filter 10-26959

    EMGO Oil Filter 10-26959

    EMGO

    $5.87
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    07120403
    SKU:
    07120403
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    FEATURES:
    STANDARD
    FILTER MEDIA MATERIAL:
    PAPER
    RIDING STYLE:
    STREET
    RIDING STYLE:
    OFF-ROAD
    COLOR/FINISH:
    YELLOW
    PRODUCT NAME:
    ELEMENT
    TYPE:
    OIL FILTER
    BASE COLOR:
    YELLOW
    UNITS:
    EACH
    $5.87
    Qty in Cart: 0
    Quantity:
    Price:
    $5.87
    Subtotal:
  • EMGO Oil Filter 10-26957

    EMGO Oil Filter 10-26957

    EMGO

    $4.71
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    07120402
    SKU:
    07120402
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    PRODUCT NAME:
    OIL FILTER
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    STANDARD
    FILTER MEDIA MATERIAL:
    PAPER
    TYPE:
    CARTRIDGE
    UNITS:
    EACH
    COLOR/FINISH:
    YELLOW
    BASE COLOR:
    YELLOW
    RIDING STYLE:
    STREET
    $4.71
    Qty in Cart: 0
    Quantity:
    Price:
    $4.71
    Subtotal:
  • EMGO Oil Filter 10-26955

    EMGO Oil Filter 10-26955

    EMGO

    $7.07
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    07120400
    SKU:
    07120400
    Availability:
    Ships Same Business Day
    Weight:
    0.26 LBS
    PRODUCT NAME:
    ELEMENT
    TYPE:
    OIL FILTER
    UNITS:
    EACH
    COLOR/FINISH:
    ORANGE
    FEATURES:
    STANDARD
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    ORANGE
    FILTER MEDIA MATERIAL:
    PAPER
    RIDING STYLE:
    STREET
    $7.07
    Qty in Cart: 0
    Quantity:
    Price:
    $7.07
    Subtotal:
  • EMGO Oil Filter 10-26992

    EMGO Oil Filter 10-26992

    EMGO

    $8.41
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    07120391
    SKU:
    07120391
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    FEATURES:
    STANDARD
    FILTER MEDIA MATERIAL:
    PAPER
    RIDING STYLE:
    ATV
    PRODUCT NAME:
    OIL FILTER
    COLOR/FINISH:
    YELLOW
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    CARTRIDGE
    BASE COLOR:
    YELLOW
    UNITS:
    EACH
    $8.41
    Qty in Cart: 0
    Quantity:
    Price:
    $8.41
    Subtotal:
  • EMGO Oil Filter 10-99220

    EMGO Oil Filter 10-99220

    EMGO

    $4.85
    Only the highest-quality paper, metal and rubber are used to manufacture these top-grade filters, Clean oil makes engines last longer
    07120270
    SKU:
    07120270
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    BASE COLOR:
    YELLOW
    PRODUCT NAME:
    ELEMENT
    TYPE:
    OIL FILTER
    FEATURES:
    STANDARD
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    FILTER MEDIA MATERIAL:
    PAPER
    COLOR/FINISH:
    YELLOW
    RIDING STYLE:
    OFF-ROAD
    $4.85
    Qty in Cart: 0
    Quantity:
    Price:
    $4.85
    Subtotal:
  • EMGO Oil/Fuel Line - Black - 3/8" - 25' 14-03731

    EMGO Oil/Fuel Line - Black - 3/8" - 25' 14-03731

    EMGO

    $48.27
    Universal, black fuel/oil line in 25' rolls, Reinforced line is fuel- and oil-resistant, Do not use with fuel containing more than 10% alcohol.
    07110062
    SKU:
    07110062
    Availability:
    Ships Same Business Day
    Weight:
    3.79 LBS
    INSIDE DIAMETER IMPERIAL:
    3/8'
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    FUEL
    BASE COLOR:
    BLACK
    INSIDE DIAMETER METRIC:
    9.5 MM
    LENGTH METRIC:
    7.62 M
    PRODUCT NAME:
    HOSE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    LENGTH IMPERIAL:
    25'
    MATERIAL:
    NEOPRENE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    TYPE:
    OIL LINE
    RIDING STYLE:
    STREET
    RIDING STYLE:
    WATERCRAFT
    $48.27
    Qty in Cart: 0
    Quantity:
    Price:
    $48.27
    Subtotal:
  • EMGO Oil/Fuel Line - Black - 5/16" - 25' 14-03721

    EMGO Oil/Fuel Line - Black - 5/16" - 25' 14-03721

    EMGO

    $41.32
    Universal, black fuel/oil line in 25' rolls, Reinforced line is fuel- and oil-resistant, Do not use with fuel containing more than 10% alcohol.
    07110061
    SKU:
    07110061
    Availability:
    Ships Same Business Day
    Weight:
    3.82 LBS
    INSIDE DIAMETER METRIC:
    7.9 MM
    RIDING STYLE:
    STREET
    RIDING STYLE:
    WATERCRAFT
    BASE COLOR:
    BLACK
    LENGTH METRIC:
    7.62 M
    PRODUCT NAME:
    HOSE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    LENGTH IMPERIAL:
    25'
    MATERIAL:
    NEOPRENE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    TYPE:
    OIL LINE
    INSIDE DIAMETER IMPERIAL:
    5/16'
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    FUEL
    $41.32
    Qty in Cart: 0
    Quantity:
    Price:
    $41.32
    Subtotal:
  • EMGO Oil/Fuel Line - Black - 1/4" - 25' 14-03711

    EMGO Oil/Fuel Line - Black - 1/4" - 25' 14-03711

    EMGO

    $34.14
    Universal, black fuel/oil line in 25' rolls, Reinforced line is fuel- and oil-resistant, Do not use with fuel containing more than 10% alcohol.
    07110060
    SKU:
    07110060
    Availability:
    Ships Same Business Day
    Weight:
    2.61 LBS
    INSIDE DIAMETER IMPERIAL:
    1/4'
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    FUEL
    BASE COLOR:
    BLACK
    INSIDE DIAMETER METRIC:
    6.4 MM
    LENGTH METRIC:
    7.62 M
    PRODUCT NAME:
    HOSE
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    LENGTH IMPERIAL:
    25'
    MATERIAL:
    NEOPRENE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    OIL LINE
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    $34.14
    Qty in Cart: 0
    Quantity:
    Price:
    $34.14
    Subtotal:
  • BOYESEN Impeller Pump CR250 WPI-02

    BOYESEN Impeller Pump CR250 WPI-02

    BOYESEN

    $79.95
    Water Pump - WPI02 Enhances water flow for optimal cooling performance Reduces hydraulic friction, ensuring consistent temperature Minimizes horsepower loss during critical race stages Extends engine life by maintaining efficient...
    WPI02
    SKU:
    WPI02
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    UNITS:
    EACH
    MATERIAL:
    ALUMINUM
    MODEL:
    SUPERCOOLER
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    IMPELLER
    TYPE:
    WATER PUMP
    $79.95
    Qty in Cart: 0
    Quantity:
    Price:
    $79.95
    Subtotal:
  • BOYESEN Ignition Cover - Black - YZ125 SC33B

    BOYESEN Ignition Cover - Black - YZ125 SC33B

    BOYESEN

    $87.95
    Factory Ignition Cover SC33B Professional appearance enhances your engine's aesthetic. Seals effectively to protect engine components from dirt and moisture. Durable construction outperforms standard stock covers. Manufactured from...
    SC33B
    SKU:
    SC33B
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    MATERIAL:
    ALUMINUM
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    IGNITION
    UNITS:
    EACH
    COLOR/FINISH:
    POWDER-COATED
    MODEL:
    FACTORY RACING
    $87.95
    Qty in Cart: 0
    Quantity:
    Price:
    $87.95
    Subtotal:
  • BOYESEN Ignition Cover - Black - YZ250 SC32AB

    BOYESEN Ignition Cover - Black - YZ250 SC32AB

    BOYESEN

    $87.95
    Factory Ignition Cover SC32AB Professional appearance enhances your bike's overall look. Seals effectively to protect the engine from dirt and water. Durable construction outlasts stock covers for long-lasting performance. Crafted from...
    SC32AB
    SKU:
    SC32AB
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    IGNITION
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    POWDER-COATED
    MATERIAL:
    ALUMINUM
    MODEL:
    FACTORY RACING
    PRODUCT NAME:
    COVER
    UNITS:
    EACH
    $87.95
    Qty in Cart: 0
    Quantity:
    Price:
    $87.95
    Subtotal:
  • BOYESEN Ignition Cover - Black - RM250 SC23B

    BOYESEN Ignition Cover - Black - RM250 SC23B

    BOYESEN

    $87.95
    Look like a professional with the Factory Ignition Cover, Seals properly, guarding inside of engine from dirt and water and outlasts stock covers, Boyesen Factory Covers are cast from the highest grade of aluminum and are strong yet lightweight,...
    SC23B
    SKU:
    SC23B
    Availability:
    Ships Same Business Day
    Weight:
    0.63 LBS
    PRODUCT NAME:
    COVER
    UNITS:
    EACH
    COLOR/FINISH:
    POWDER-COATED
    MATERIAL:
    ALUMINUM
    MODEL:
    FACTORY RACING
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    IGNITION
    $87.95
    Qty in Cart: 0
    Quantity:
    Price:
    $87.95
    Subtotal:
  • BOYESEN Ignition Cover - Black - RM125 SC-21CB

    BOYESEN Ignition Cover - Black - RM125 SC-21CB

    BOYESEN

    $87.95
    Factory Ignition Cover - SC21CB Professional appearance for your engine compartment Seals effectively to protect against dirt and water intrusion Durable construction outlasting standard stock covers Crafted from premium-grade aluminum...
    SC21CB
    SKU:
    SC21CB
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    COLOR/FINISH:
    POWDER-COATED
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    COVER
    UNITS:
    EACH
    COLOR/FINISH:
    BLACK
    MODEL:
    FACTORY RACING
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    IGNITION
    $87.95
    Qty in Cart: 0
    Quantity:
    Price:
    $87.95
    Subtotal:
  • Total: items /

Adding your products to cart

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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