Dirt Bike Engine Valves and Parts

Dirt Bike Engine Valves and Parts

Dirt Bike Engine Valves and Parts

J J Motorsports is a leading supplier of dirt bike engine parts and accessories. We carry a wide selection of 4 stroke engine valves from top brands like Wiseco and Vertex Racing. Whether you're looking for replacement valves or performance parts, we have what you need to keep your dirt bike running at peak performance. Our team is passionate about dirt bikes and we're here to help you get the most out of your ride. Contact us today with any questions or for help finding the right parts for your bike.

  • Product
  • Qty in Cart
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  • Subtotal
  • KIBBLEWHITE Intake Valve Guide 30-32821

    KIBBLEWHITE Intake Valve Guide 30-32821

    KIBBLEWHITE

    $30.95
    KIBBLEWHITE Intake Valve Guide 30-32821All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.
    09263148
    SKU:
    09263148
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    INSIDE DIAMETER IMPERIAL:
    0.1960'
    MATERIAL:
    C630 BRONZE
    OUTSIDE DIAMETER IMPERIAL:
    0.4370'
    RIDING STYLE:
    OFF-ROAD
    SIZE IMPERIAL:
    OVERSIZE (+0.001')
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    VALVE GUIDE
    UNITS:
    EACH
    $30.95
    Qty in Cart: 0
    Quantity:
    Price:
    $30.95
    Subtotal:
  • KIBBLEWHITE Intake Valve Guide 30-32822

    KIBBLEWHITE Intake Valve Guide 30-32822

    KIBBLEWHITE

    $30.95
    KIBBLEWHITE Intake Valve Guide 30-32822All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.
    09263149
    SKU:
    09263149
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    APPLICATION:
    INTAKE
    OUTSIDE DIAMETER IMPERIAL:
    0.4380'
    PRODUCT NAME:
    VALVE GUIDE
    SIZE IMPERIAL:
    OVERSIZE (+0.002')
    UNITS:
    EACH
    INSIDE DIAMETER IMPERIAL:
    0.1960'
    MATERIAL:
    C630 BRONZE
    $30.95
    Qty in Cart: 0
    Quantity:
    Price:
    $30.95
    Subtotal:
  • On Sale
    KIBBLEWHITE Exhaust Valve Guide 30-32832

    KIBBLEWHITE Exhaust Valve Guide 30-32832

    KIBBLEWHITE

    MSRP: $30.95
    Now: $19.00
    Was: $30.95
    KIBBLEWHITE Exhaust Valve Guide 30-32832All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.
    09263152
    SKU:
    09263152
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MATERIAL:
    C630 BRONZE
    OUTSIDE DIAMETER IMPERIAL:
    0.4380'
    PRODUCT NAME:
    VALVE GUIDE
    SIZE IMPERIAL:
    OVERSIZE (+0.002')
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    INSIDE DIAMETER IMPERIAL:
    0.1955'
    APPLICATION:
    EXHAUST
    MSRP: $30.95
    Now: $19.00
    Was: $30.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $30.95
    Now: $19.00
    Was: $30.95
    Subtotal:
  • On Sale
    KIBBLEWHITE Exhaust Valve Guide 30-32839

    KIBBLEWHITE Exhaust Valve Guide 30-32839

    KIBBLEWHITE

    MSRP: $30.95
    Now: $19.00
    Was: $30.95
    KIBBLEWHITE Exhaust Valve Guide 30-32839All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.
    09263153
    SKU:
    09263153
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    EXHAUST
    INSIDE DIAMETER IMPERIAL:
    0.1955'
    PRODUCT NAME:
    VALVE GUIDE
    MATERIAL:
    C630 BRONZE
    RIDING STYLE:
    OFF-ROAD
    SIZE IMPERIAL:
    OVERSIZE (+0.010')
    OUTSIDE DIAMETER IMPERIAL:
    0.446'
    UNITS:
    EACH
    MSRP: $30.95
    Now: $19.00
    Was: $30.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $30.95
    Now: $19.00
    Was: $30.95
    Subtotal:
  • KIBBLEWHITE Intake Valve Kit 40-41450

    KIBBLEWHITE Intake Valve Kit 40-41450

    KIBBLEWHITE

    $185.95
    KIBBLEWHITE Intake Valve Kit 40-41450Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves, Extends the life of the valvetrain and intake components by as much as 4x...
    09263154
    SKU:
    09263154
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    SPRING LIFT:
    0,415'
    TYPE:
    CONVERSION
    PRODUCT NAME:
    VALVE KIT
    RIDING STYLE:
    OFF-ROAD
    SPRING OPEN PRESSURE:
    181 LB
    SPRING SEAT PRESSURE:
    65 LB
    UNITS:
    KIT
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    SPRING LIFT IMPERIAL:
    0.415'
    $185.95
    Qty in Cart: 0
    Quantity:
    Price:
    $185.95
    Subtotal:
  • KIBBLEWHITE Intake Valve 40-41412H

    KIBBLEWHITE Intake Valve 40-41412H

    KIBBLEWHITE

    $37.95
    KIBBLEWHITE Intake Valve 40-41412HWhite Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel or Inconel-751, Electroplated with a 360º anode, to produce an even coat of the highest grade hard chrome finish, Made in the U.S.A.
    09263155
    SKU:
    09263155
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    HEAD DIAMETER METRIC:
    31.00 MM
    LENGTH IMPERIAL:
    3.460'
    MODEL:
    WHITE DIAMONDâ„¢
    RIDING STYLE:
    OFF-ROAD
    STEM DIAMETER IMPERIAL:
    0.1764'
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    VALVE
    SIZE METRIC:
    STANDARD
    TULIP ANGLE:
    20°
    APPLICATION:
    INTAKE
    UNITS:
    EACH
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • KIBBLEWHITE Exhaust Valve 40-41416H

    KIBBLEWHITE Exhaust Valve 40-41416H

    KIBBLEWHITE

    $37.95
    KIBBLEWHITE Exhaust Valve 40-41416HWhite Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel or Inconel-751, Electroplated with a 360º anode, to produce an even coat of the highest grade hard chrome finish, Made in the U.S.A.
    09263156
    SKU:
    09263156
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    TULIP ANGLE:
    25°
    HEAD DIAMETER METRIC:
    25.00 MM
    MODEL:
    WHITE DIAMONDâ„¢
    RIDING STYLE:
    OFF-ROAD
    STEM DIAMETER IMPERIAL:
    0.1759'
    LENGTH IMPERIAL:
    3.170'
    UNITS:
    EACH
    APPLICATION:
    EXHAUST
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    VALVE
    SIZE METRIC:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • KIBBLEWHITE Valve Guide 96-96521

    KIBBLEWHITE Valve Guide 96-96521

    KIBBLEWHITE

    $22.95
    KIBBLEWHITE Valve Guide 96-96521All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.
    09263157
    SKU:
    09263157
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    APPLICATION:
    INTAKE
    RIDING STYLE:
    OFF-ROAD
    SIZE IMPERIAL:
    OVERSIZE (+0.001')
    UNITS:
    EACH
    INSIDE DIAMETER IMPERIAL:
    0.2353'
    MATERIAL:
    C630 BRONZE
    OUTSIDE DIAMETER IMPERIAL:
    0.4362'
    PRODUCT NAME:
    VALVE GUIDE
    Qty in Cart: 0
    Quantity:
    Price:
    $22.95
    Subtotal:
  • KIBBLEWHITE Valve Guide 96-96522

    KIBBLEWHITE Valve Guide 96-96522

    KIBBLEWHITE

    $22.95
    KIBBLEWHITE Valve Guide 96-96522All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.
    09263158
    SKU:
    09263158
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    APPLICATION:
    INTAKE
    OUTSIDE DIAMETER IMPERIAL:
    0.4372'
    UNITS:
    EACH
    INSIDE DIAMETER IMPERIAL:
    0.2353'
    MATERIAL:
    C630 BRONZE
    PRODUCT NAME:
    VALVE GUIDE
    SIZE IMPERIAL:
    OVERSIZE (+0.002')
    RIDING STYLE:
    OFF-ROAD
    $22.95
    Qty in Cart: 0
    Quantity:
    Price:
    $22.95
    Subtotal:
  • KIBBLEWHITE Cylinder Head Service Kit 82-83160

    KIBBLEWHITE Cylinder Head Service Kit 82-83160

    KIBBLEWHITE

    $703.95
    KIBBLEWHITE Cylinder Head Service Kit 82-83160Kits contain all items to completely refresh and upgrade cylinder heads for popular Dirt/MX and Side x Side models, Cylinder Head Service Kits include the below components:, Lightweight Racing Valve Spring...
    09263160
    SKU:
    09263160
    Availability:
    Ships Same Business Day
    Weight:
    2.45 LBS
    MODEL:
    WHITE DIAMONDâ„¢
    UNITS:
    KIT
    MATERIAL:
    C630 BRONZE
    PRODUCT NAME:
    CYLINDER HEAD SERVICE KIT
    SPRING LIFT:
    0,435'
    SPRING OPEN PRESSURE:
    205 LB
    APPLICATION:
    INTAKE
    SPRING SEAT PRESSURE:
    80 IB
    APPLICATION:
    EXHAUST
    RIDING STYLE:
    UTV
    SPRING LIFT IMPERIAL:
    0.435'
    $703.95
    Qty in Cart: 0
    Quantity:
    Price:
    $703.95
    Subtotal:
  • KIBBLEWHITE Spring Kit 80-81400

    KIBBLEWHITE Spring Kit 80-81400

    KIBBLEWHITE

    $220.95
    KIBBLEWHITE Spring Kit 80-81400Replacement Spring Kit for Kibblewhite Top End Service Kit
    09263161
    SKU:
    09263161
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    MATERIAL:
    TITANIUM
    APPLICATION:
    EXHAUST
    TYPE:
    VALVE
    PRODUCT NAME:
    SPRING KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $220.95
    Qty in Cart: 0
    Quantity:
    Price:
    $220.95
    Subtotal:
  • KIBBLEWHITE Intake Valve 80-80912

    KIBBLEWHITE Intake Valve 80-80912

    KIBBLEWHITE

    $31.95
    KIBBLEWHITE Intake Valve 80-80912Black Diamondâ„¢ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamondâ„¢ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U...
    09263162
    SKU:
    09263162
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    HEAD DIAMETER METRIC:
    31.00 MM
    LENGTH IMPERIAL:
    3.280'
    MODEL:
    BLACK DIAMONDâ„¢
    TULIP ANGLE:
    18°
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MATERIAL:
    TITANIUM
    STEM DIAMETER IMPERIAL:
    0.1962'
    $31.95
    Qty in Cart: 0
    Quantity:
    Price:
    $31.95
    Subtotal:
  • KIBBLEWHITE Exhaust Valve 80-80916

    KIBBLEWHITE Exhaust Valve 80-80916

    KIBBLEWHITE

    $31.95
    KIBBLEWHITE Exhaust Valve 80-80916Black Diamondâ„¢ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamondâ„¢ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the...
    09263163
    SKU:
    09263163
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MATERIAL:
    TITANIUM
    MODEL:
    BLACK DIAMONDâ„¢
    STEM DIAMETER IMPERIAL:
    0.1760'
    TULIP ANGLE:
    30°
    APPLICATION:
    EXHAUST
    LENGTH IMPERIAL:
    3.235'
    PRODUCT NAME:
    VALVE
    UNITS:
    EACH
    HEAD DIAMETER METRIC:
    25.00 MM
    RIDING STYLE:
    OFF-ROAD
    $31.95
    Qty in Cart: 0
    Quantity:
    Price:
    $31.95
    Subtotal:
  • KIBBLEWHITE Valve Guide Seal 71015-4

    KIBBLEWHITE Valve Guide Seal 71015-4

    KIBBLEWHITE

    $13.96
    KIBBLEWHITE Valve Guide Seal 71015-4Seals sold each, in 25 packs and 100 packs, Stem diameter 5/16"; guide o.d. .420", Seal driver and sleeves sold separately, Made in the U.S.A.
    09263164
    SKU:
    09263164
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MATERIAL:
    VITON
    OUTSIDE DIAMETER IMPERIAL:
    0.405'
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    TYPE:
    VALVE GUIDE
    UNITS:
    4 PACK
    APPLICATION:
    INTAKE
    RIDING STYLE:
    ATV
    STEM DIAMETER METRIC:
    5.00 MM
    PRODUCT NAME:
    SEAL
    RIDING STYLE:
    OFF-ROAD
    APPLICATION:
    EXHAUST
    RIDING STYLE:
    WATERCRAFT
    $13.96
    Qty in Cart: 0
    Quantity:
    Price:
    $13.96
    Subtotal:
  • KIBBLEWHITE Valve Guide Seal 71029-8

    KIBBLEWHITE Valve Guide Seal 71029-8

    KIBBLEWHITE

    $27.95
    KIBBLEWHITE Valve Guide Seal 71029-8Seals sold each, in 25 packs and 100 packs, Stem diameter 5/16"; guide o.d. .420", Seal driver and sleeves sold separately, Made in the U.S.A.
    09263165
    SKU:
    09263165
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    OUTSIDE DIAMETER IMPERIAL:
    0.520'
    STEM DIAMETER METRIC:
    6.00 MM
    UNITS:
    8 PACK
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    SEAL
    APPLICATION:
    INTAKE
    RIDING STYLE:
    ATV
    TYPE:
    VALVE GUIDE
    MATERIAL:
    VITON
    RIDING STYLE:
    OFF-ROAD
    $27.95
    Qty in Cart: 0
    Quantity:
    Price:
    $27.95
    Subtotal:
  • KIBBLEWHITE Spring Kit - .650" - Evolution/Twin Cam 20-21650

    KIBBLEWHITE Spring Kit - .650" - Evolution/Twin Cam 20-21650

    KIBBLEWHITE

    $219.95
    KIBBLEWHITE Spring Kit .650" Evolution/Twin Cam 20-21650Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamondâ„¢ intake valves, Extend the life of the valvetrain and intake components...
    09263167
    SKU:
    09263167
    Availability:
    Ships Same Business Day
    Weight:
    1.55 LBS
    APPLICATION:
    EXHAUST
    SPRING OPEN PRESSURE:
    440 LB
    SPRING LIFT:
    0,650'
    SPRING LIFT IMPERIAL:
    0.650'
    SPRING SEAT PRESSURE:
    185 IB
    UNITS:
    KIT
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    SPRING KIT
    RIDING STYLE:
    STREET
    $219.95
    Qty in Cart: 0
    Quantity:
    Price:
    $219.95
    Subtotal:
  • KIBBLEWHITE Spring Kit - .675" - Evolution/Twin Cam 20-21600

    KIBBLEWHITE Spring Kit - .675" - Evolution/Twin Cam 20-21600

    KIBBLEWHITE

    $219.95
    KIBBLEWHITE Spring Kit .675" Evolution/Twin Cam 20-21600Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamondâ„¢ intake valves, Extend the life of the valvetrain and intake components...
    09263168
    SKU:
    09263168
    Availability:
    Ships Same Business Day
    Weight:
    1.50 LBS
    APPLICATION:
    INTAKE
    PRODUCT NAME:
    SPRING KIT
    RIDING STYLE:
    STREET
    SPRING LIFT IMPERIAL:
    0.675'
    SPRING OPEN PRESSURE:
    450 LB
    APPLICATION:
    EXHAUST
    SPRING LIFT:
    0,675'
    SPRING SEAT PRESSURE:
    185 IB
    UNITS:
    KIT
    $219.95
    Qty in Cart: 0
    Quantity:
    Price:
    $219.95
    Subtotal:
  • KIBBLEWHITE Intake Spring Kit 30-33200

    KIBBLEWHITE Intake Spring Kit 30-33200

    KIBBLEWHITE

    $185.95
    KIBBLEWHITE Intake Spring Kit 30-33200Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves, Extends the life of the valvetrain and intake components by as much as 4x...
    09263169
    SKU:
    09263169
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE KIT
    RIDING STYLE:
    ATV
    SPRING LIFT IMPERIAL:
    0.440'
    SPRING LIFT:
    0,440'
    SPRING OPEN PRESSURE:
    147 LB
    SPRING SEAT PRESSURE:
    40 LB
    TYPE:
    CONVERSION
    UNITS:
    KIT
    $185.95
    Qty in Cart: 0
    Quantity:
    Price:
    $185.95
    Subtotal:
  • KIBBLEWHITE Intake Spring Kit 30-33250

    KIBBLEWHITE Intake Spring Kit 30-33250

    KIBBLEWHITE

    $185.95
    KIBBLEWHITE Intake Spring Kit 30-33250Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves, Extends the life of the valvetrain and intake components by as much as 4x...
    09263170
    SKU:
    09263170
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    APPLICATION:
    INTAKE
    RIDING STYLE:
    ATV
    SPRING LIFT IMPERIAL:
    0.440'
    TYPE:
    CONVERSION
    SPRING LIFT:
    0,440'
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE KIT
    SPRING OPEN PRESSURE:
    147 LB
    SPRING SEAT PRESSURE:
    40 LB
    UNITS:
    KIT
    $185.95
    Qty in Cart: 0
    Quantity:
    Price:
    $185.95
    Subtotal:
  • KIBBLEWHITE Spring Kit 80-82300

    KIBBLEWHITE Spring Kit 80-82300

    KIBBLEWHITE

    $220.95
    KIBBLEWHITE Spring Kit 80-82300Spring kits contain springs and titanium upper collars; lower collars included as required; spring kits are engineered for use with standard and oversized valves, Spring kits come complete for one motor, Keepers are not...
    09263176
    SKU:
    09263176
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    SPRING OPEN PRESSURE:
    INTAKE 187 LB, EXHAUST 149 LB
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    APPLICATION:
    INTAKE
    MATERIAL:
    TITANIUM
    PRODUCT NAME:
    SPRING KIT
    APPLICATION:
    EXHAUST
    SPRING LIFT IMPERIAL:
    INTAKE 0.420', EXHAUST 0.400'
    TYPE:
    VALVE
    $220.95
    Qty in Cart: 0
    Quantity:
    Price:
    $220.95
    Subtotal:
  • Total: items /

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