PROX

8047 products

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PROX STEEL EXHAUST VALVE/SPRING KIT RM-Z450 '08-11 + RMX450Z

$157.34

Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel valv...

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$119.58

MFG Part Number: 28.SES3408-1 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the ...

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PROX STEEL EXHAUST VALVE/SPRING KIT YZ/WR250F '01-10 28.SES2401-1

$112.38

MFG Part Number: 28.SES2401-1 Wiseco's valve train components are the next great products available to maximize the performance of your highly stressed racing engine! Each new product is made from ...

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$886.73

PROX STEEL EXHAUST VALVE/SPRING KIT YZ/WR450F '03-09 111054 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronge...

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$119.58

MFG Part Number: 28.SES2424-1 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the e...

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PROX STEEL EXHAUST VALVE/SPRING KIT YZ450F '10-11

$157.34

Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel valve...

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$119.58

MFG Part Number: 28.SES2440-1 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the e...

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PROX STEEL INT VALVE/SPRING KIT KX250F '04-06 RM-Z250 '04-06 28.SIS4334-2

$112.38

MFG Part Number: 28.SIS4334-2 Wiseco's valve train components are the next great products available to maximize the performance of your highly stressed racing engine! Each new product is made from ...

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PROX STEEL INT. VALVE/SPRING KIT RM-Z450 '08-11 + RMX450Z 111078

$1,240.60

PROX STEEL INT. VALVE/SPRING KIT RM-Z450 '08-11 + RMX450Z 111078 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsS...

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$119.58

MFG Part Number: 28.SIS3408-2 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the ...

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PROX STEEL INTAKE VALVE KTM350EXC-F '20-22 + FREERIDE 350 28.6362-2

$26.12

MFG Part Number: 28.6362-2

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PROX STEEL INTAKE VALVE/SPRINGKIT CRF250R '04-09 28.SIS1335-2

$108.71

MFG Part Number: 28.SIS1335-2 Wiseco's valve train components are the next great products available to maximize the performance of your highly stressed racing engine! Each new product is made from ...

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$911.97

PROX STEEL INTAKE VALVE/SPRINGKIT CRF250R '10-11 111067 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger va...

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$122.99

MFG Part Number: 28.SIS1340-2 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the e...

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PROX STEEL INTAKE VALVE/SPRINGKIT CRF450R '02-08

$157.34

Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel valve...

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$122.73

MFG Part Number: 28.SIS1403-2 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the e...

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$886.73

PROX STEEL INTAKE VALVE/SPRINGKIT CRF450R '09-11 111070 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger va...

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$119.58

MFG Part Number: 28.SIS1409-2 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the e...

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$886.73

PROX STEEL INTAKE VALVE/SPRINGKIT CRF450X '05-09 111069 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger va...

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$119.58

MFG Part Number: 28.SIS1405-2 Replaces the OEM valves & valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the e...

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PROX STEEL INTAKE VALVE/SPRINGKIT KTM250SX-F/EXC-F '05-07 111084

$129.49

The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. the steel valves are made by the leading OEM factories in Japan and are a direct and cost-e...

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PROX STEEL INTAKE VALVE/SPRINGKIT KTM250SX-F/EXC-F '05-07 28.SIS6326-2

$120.36

MFG Part Number: 28.SIS6326-2 The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. the steel valves are made by the leading OEM factories in Jap...

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PROX STEEL INTAKE VALVE/SPRINGKIT KX250F '07-08 28.SIS4337-2

$112.38

MFG Part Number: 28.SIS4337-2 Wiseco's valve train components are the next great products available to maximize the performance of your highly stressed racing engine! Each new product is made from ...

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PROX STEEL INTAKE VALVE/SPRINGKIT KX250F '09-10 28.SIS4339-2

$112.38

MFG Part Number: 28.SIS4339-2 Wiseco's valve train components are the next great products available to maximize the performance of your highly stressed racing engine! Each new product is made from ...