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.
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- Qty in Cart
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- Price
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PROX Valveshim - 10.00 x 2.90 - 5 pack 29.100290
PROX
$10.31PROX Valveshim 10.00 x 2.90 5 pack 29.100290Made 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 shims09261011- SKU:
- 09261011
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- PRODUCT NAME:
- SHIM KIT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 2.90 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
$10.31 -
PROX Valveshim - 10.00 x 2.95 - 5 pack 29.100295
PROX
$10.31PROX Valveshim 10.00 x 2.95 5 pack 29.100295Made 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 shims09261012- SKU:
- 09261012
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHIM KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 2.95 MM
$10.31 -
PROX Valveshim - 10.00 x 3.00 - 5 pack 29.100300
PROX
$10.31PROX Valveshim 10.00 x 3.00 5 pack 29.100300Made 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 shims09261013- SKU:
- 09261013
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHIM KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.00 MM
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
$10.31 -
PROX Valveshim - 10.00 x 3.05 - 5 pack 29.100305
PROX
$10.31PROX Valveshim 10.00 x 3.05 5 pack 29.100305Made 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 shims09261014- SKU:
- 09261014
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHIM KIT
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.05 MM
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- VALVE
$10.31 -
PROX Valveshim - 10.00 x 3.20 - 5 pack 29.100320
PROX
$10.31PROX Valveshim 10.00 x 3.20 5 pack 29.100320Made 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 shims09261017- SKU:
- 09261017
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 3.20 MM
- PRODUCT NAME:
- SHIM KIT
- UNITS:
- 5 PACK
- OUTSIDE DIAMETER METRIC:
- 10.00 MM
- TYPE:
- VALVE
$10.31 -
PROX Valve and Spring Kit 28.SIS1405-2
PROX
$157.34PROX Valve and Spring Kit 28.SIS1405-2Replaces 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...09261021- SKU:
- 09261021
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$157.34 -
PROX Valve and Spring Kit 28.SES2424-1
PROX
$157.34PROX Valve and Spring Kit 28.SES2424-1Replaces 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...09261025- SKU:
- 09261025
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- VALVE
- PRODUCT NAME:
- SPRING KIT
- APPLICATION:
- EXHAUST
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$157.34 -
PROX Valve and Spring Kit 28.SIS4406-2
PROX
$174.84PROX Valve and Spring Kit 28.SIS4406-2Replaces 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...09261031- SKU:
- 09261031
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- VALVE
$174.84 -
PROX Valve and Spring Kit 28.SES4406-1
PROX
$174.84PROX Valve and Spring Kit 28.SES4406-1Replaces 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...09261032- SKU:
- 09261032
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STEEL
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- VALVE
$174.84 -
PROX Valve and Spring Kit 28.SIS4409-2
PROX
$174.84PROX Valve and Spring Kit 28.SIS4409-2Replaces 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...09261033- SKU:
- 09261033
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- VALVE
$174.84 -
PROX Valve and Spring Kit 28.SES4409-1
PROX
$174.84PROX Valve and Spring Kit 28.SES4409-1Replaces 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...09261034- SKU:
- 09261034
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- VALVE
$174.84 -
PROX Valve and Spring Kit 28.SIS3405-2
PROX
$157.34PROX Valve and Spring Kit 28.SIS3405-2Replaces 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...09261035- SKU:
- 09261035
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- SPRING KIT
$157.34 -
PROX Valve and Spring Kit 28.SES3405-1
PROX
$157.34PROX Valve and Spring Kit 28.SES3405-1Replaces 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...09261036- SKU:
- 09261036
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPRING KIT
$157.34 -
PROX Valve and Spring Kit 28.SIS3407-2
PROX
$157.34PROX Valve and Spring Kit 28.SIS3407-2Replaces 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...09261037- SKU:
- 09261037
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
$157.34 -
PROX Valve and Spring Kit 28.SES3407-1
PROX
$157.34PROX Valve and Spring Kit 28.SES3407-1Replaces 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...09261038- SKU:
- 09261038
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- KIT
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$157.34 -
PROX Valve and Spring Kit 28.SIS3408-2
PROX
$157.34PROX Valve and Spring Kit 28.SIS3408-2Replaces 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...09261039- SKU:
- 09261039
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$157.34 -
PROX Valve and Spring Kit 28.SES3408-1
PROX
$157.34PROX Valve and Spring Kit 28.SES3408-1Replaces 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...09261040- SKU:
- 09261040
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- VALVE
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
$157.34 -
PROX Exhaust Valve 28.1070-1
PROX
$25.39PROX Exhaust Valve 28.1070-1Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only09260664- SKU:
- 09260664
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$25.39 -
PROX Intake Valve 28.1070-2
PROX
$15.97PROX Intake Valve 28.1070-2Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only09260665- SKU:
- 09260665
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
$15.97 -
PROX Exhaust Valve 28.1226-1
PROX
$29.95PROX Exhaust Valve 28.1226-1Manufactured to the highest precision and quality, Constructed to meet OEM specifications, Available in standard sizes only09260666- SKU:
- 09260666
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- APPLICATION:
- EXHAUST
$29.95
