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Dirt Bike Engine Valves and Parts

Dirt Bike Engine Valves and Parts

Dirt Bike Engine Valves and Parts

Improve airflow and combustion with precision-engineered engine valves and parts. These components are designed for maximum durability and performance enhancement. Shop our full range of engine valve components for your dirt bike.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • PROX Valve and Spring Kit 28.SES2444-1

    PROX Valve and Spring Kit 28.SES2444-1

    PROX

    $159.95
    PROX Valve and Spring Kit 28.SES2444-1Replaces the OEM valves and valve springs, Steel, nitrided valves for increased durability and less wear under extreme conditions, Stronger valve springs deal with the extra weight of the steel valves, Springs are...
    09262725
    SKU:
    09262725
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    SPRING KIT
    UNITS:
    KIT
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    VALVE
    $159.95
    Qty in Cart: 0
    Quantity:
    Price:
    $159.95
    Subtotal:
  • PROX Valve and Spring Kit 28.SES6351-1

    PROX Valve and Spring Kit 28.SES6351-1

    PROX

    $149.95
    PROX Valve and Spring Kit 28.SES6351-1Replaces the OEM valves and valve springs, Steel, nitrided valves for increased durability and less wear under extreme conditions, Stronger valve springs deal with the extra weight of the steel valves, Springs are...
    09262726
    SKU:
    09262726
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    SPRING KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MATERIAL:
    STEEL
    TYPE:
    VALVE
    Qty in Cart: 0
    Quantity:
    Price:
    $149.95
    Subtotal:
  • PROX Valve and Spring Kit 28.SES6353-1

    PROX Valve and Spring Kit 28.SES6353-1

    PROX

    $149.95
    PROX Valve and Spring Kit 28.SES6353-1Replaces the OEM valves and valve springs, Steel, nitrided valves for increased durability and less wear under extreme conditions, Stronger valve springs deal with the extra weight of the steel valves, Springs are...
    09262727
    SKU:
    09262727
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    VALVE
    UNITS:
    KIT
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    SPRING KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $149.95
    Subtotal:
  • PROX Valve and Spring Kit 28.SIS2414-2

    PROX Valve and Spring Kit 28.SIS2414-2

    PROX

    $149.95
    PROX Valve and Spring Kit 28.SIS2414-2Replaces the OEM valves and valve springs, Steel, nitrided valves for increased durability and less wear under extreme conditions, Stronger valve springs deal with the extra weight of the steel valves, Springs are...
    09262728
    SKU:
    09262728
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    VALVE
    PRODUCT NAME:
    VALVE AND SPRING KIT
    UNITS:
    KIT
    $149.95
    Qty in Cart: 0
    Quantity:
    Price:
    $149.95
    Subtotal:
  • PROX Valve and Spring Kit 28.SIS2444-2

    PROX Valve and Spring Kit 28.SIS2444-2

    PROX

    $159.95
    PROX Valve and Spring Kit 28.SIS2444-2Replaces the OEM valves and valve springs, Steel, nitrided valves for increased durability and less wear under extreme conditions, Stronger valve springs deal with the extra weight of the steel valves, Springs are...
    09262729
    SKU:
    09262729
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    VALVE
    PRODUCT NAME:
    VALVE AND SPRING KIT
    UNITS:
    KIT
    $159.95
    Qty in Cart: 0
    Quantity:
    Price:
    $159.95
    Subtotal:
  • PROX Valve and Spring Kit 28.SIS6351-2

    PROX Valve and Spring Kit 28.SIS6351-2

    PROX

    $149.95
    PROX Valve and Spring Kit 28.SIS6351-2Replaces the OEM valves and valve springs, Steel, nitrided valves for increased durability and less wear under extreme conditions, Stronger valve springs deal with the extra weight of the steel valves, Springs are...
    09262730
    SKU:
    09262730
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    PRODUCT NAME:
    VALVE AND SPRING KIT
    APPLICATION:
    INTAKE
    TYPE:
    VALVE
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $149.95
    Subtotal:
  • PROX Valve and Spring Kit 28.SIS6353-2

    PROX Valve and Spring Kit 28.SIS6353-2

    PROX

    $149.95
    PROX Valve and Spring Kit 28.SIS6353-2Replaces the OEM valves and valve springs, Steel, nitrided valves for increased durability and less wear under extreme conditions, Stronger valve springs deal with the extra weight of the steel valves, Springs are...
    09262731
    SKU:
    09262731
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    TYPE:
    VALVE
    PRODUCT NAME:
    VALVE AND SPRING KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $149.95
    Subtotal:
  • PROX Exhaust Valve 28.1334-1

    PROX Exhaust Valve 28.1334-1

    PROX

    $39.95
    PROX Exhaust Valve 28.1334-1Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only
    09260143
    SKU:
    09260143
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    PRODUCT NAME:
    VALVE
    UNITS:
    EACH
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    APPLICATION:
    EXHAUST
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • PROX Exhaust Valve 28.1402-1

    PROX Exhaust Valve 28.1402-1

    PROX

    $39.95
    PROX Exhaust Valve 28.1402-1Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only
    09260144
    SKU:
    09260144
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    VALVE
    UNITS:
    EACH
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    $39.95
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • PROX Exhaust Valve 28.1495-1

    PROX Exhaust Valve 28.1495-1

    PROX

    $34.95
    PROX Exhaust Valve 28.1495-1Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only
    09260145
    SKU:
    09260145
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    OFF-ROAD
    APPLICATION:
    EXHAUST
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • PROX Exhaust Valve 28.1654-1

    PROX Exhaust Valve 28.1654-1

    PROX

    $54.95
    PROX Exhaust Valve 28.1654-1Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only
    09260146
    SKU:
    09260146
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE
    UNITS:
    EACH
    APPLICATION:
    EXHAUST
    $54.95
    Qty in Cart: 0
    Quantity:
    Price:
    $54.95
    Subtotal:
  • PROX Exhaust Valve 28.3402-1

    PROX Exhaust Valve 28.3402-1

    PROX

    $34.95
    PROX Exhaust Valve 28.3402-1Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only
    09260147
    SKU:
    09260147
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    VALVE
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • PROX Exhaust Valve 28.2418-1

    PROX Exhaust Valve 28.2418-1

    PROX

    $29.95
    PROX Exhaust Valve 28.2418-1Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only
    09260148
    SKU:
    09260148
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    VALVE
    $29.95
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • PROX Intake Valve 28.1495-2

    PROX Intake Valve 28.1495-2

    PROX

    $24.95
    PROX Intake Valve 28.1495-2Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only
    09260149
    SKU:
    09260149
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • PROX Intake Valve 28.1654-2

    PROX Intake Valve 28.1654-2

    PROX

    $34.95
    PROX Intake Valve 28.1654-2Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only
    09260150
    SKU:
    09260150
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • PROX Intake Valve 28.3402-2

    PROX Intake Valve 28.3402-2

    PROX

    $29.95
    PROX Intake Valve 28.3402-2Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only
    09260151
    SKU:
    09260151
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    $29.95
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • PROX Intake Valve 28.2418-3

    PROX Intake Valve 28.2418-3

    PROX

    $19.95
    PROX Intake Valve 28.2418-3Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only
    09260153
    SKU:
    09260153
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    APPLICATION:
    INTAKE
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    PRODUCT NAME:
    VALVE
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • PROX Valve Shims - 5 pack 29.748120

    PROX Valve Shims - 5 pack 29.748120

    PROX

    $9.95
    PROX Valve Shims 5 pack 29.748120Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims
    09260870
    SKU:
    09260870
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    OUTSIDE DIAMETER METRIC:
    7.48 MM
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SHIM KIT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    UNITS:
    5 PACK
    VALVE SHIM THICKNESS METRIC:
    1.20 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    VALVE
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • PROX Valve Shims - 5 pack 29.748125

    PROX Valve Shims - 5 pack 29.748125

    PROX

    $9.95
    PROX Valve Shims 5 pack 29.748125Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims
    09260871
    SKU:
    09260871
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    OUTSIDE DIAMETER METRIC:
    7.48 MM
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    VALVE SHIM THICKNESS METRIC:
    1.25 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    PRODUCT NAME:
    SHIM KIT
    RIDING STYLE:
    WATERCRAFT
    UNITS:
    5 PACK
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    VALVE
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • PROX Valve Shims - 5 pack 29.748130

    PROX Valve Shims - 5 pack 29.748130

    PROX

    $9.95
    PROX Valve Shims 5 pack 29.748130Made using a specific heat-treatment to ensure hardness for maximum durability and less wear, Precision machined to match exact size, Inexpensive and easy replacement for expensive OEM shims
    09260872
    SKU:
    09260872
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    OUTSIDE DIAMETER METRIC:
    7.48 MM
    PRODUCT NAME:
    SHIM KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    UNITS:
    5 PACK
    RIDING STYLE:
    STREET
    RIDING STYLE:
    WATERCRAFT
    VALVE SHIM THICKNESS METRIC:
    1.30 MM
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    VALVE
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • Total: items /

Adding your products to cart

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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