PROX
Prox Pistons, Gaskets, and Engine Components at JJ Motorsports
Prox, established in the late 1970s, is a respected brand in the powersports industry, specializing in high-performance aftermarket parts for motorcycles, ATVs, and off-road vehicles. With a focus on quality and innovation, Prox offers OEM-style replacements that deliver exceptional reliability and performance for both recreational riders and professionals.
At JJ Motorsports, we provide a comprehensive selection of Prox products, including complete gasket kits, top-end gasket sets, piston kits, connecting rod kits, crankshaft bearing/seal kits, and more. Whether you're rebuilding an engine or upgrading for better durability, Prox delivers precise-fit solutions compatible with major brands like Honda, Kawasaki, Suzuki, and KTM. Explore our inventory to find the ideal parts for your vehicle.
Key features of Prox products include precision engineering to OEM specifications, use of high-silicon-content aluminum alloys for pistons, double-forged construction for strength, and complete kits for easy installation. Shop now and enhance your powersports performance with Prox!
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- Price
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On Sale
PROX Top End Gasket Kit - Arctic Cat ZL/ZR/Cat 800 35.5802
PROX
MSRP: $74.95Now: $64.00Was: $74.95A top-end gasket kit is essential maintenance for any Arctic Cat 800 engine—worn or degraded gaskets compromise compression, increase blow-by, and lead to costly internal damage. PROX's engineered...09346643- SKU:
- 09346643
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
MSRP: $74.95Now: $64.00Was: $74.95Qty in Cart: 0Quantity:Price:MSRP: $74.95Now: $64.00Was: $74.95Subtotal: -
On Sale
PROX Top End Gasket Kit - Arctic Cat 35.5807
PROX
MSRP: $94.95Now: $81.00Was: $94.95A top-end gasket kit is essential for maintaining cylinder head integrity and preventing coolant or oil seepage that compromises engine reliability. The PROX 35.5807 delivers OEM-equivalent sealing...09346644- SKU:
- 09346644
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- SNOW
MSRP: $94.95Now: $81.00Was: $94.95Qty in Cart: 0Quantity:Price:MSRP: $94.95Now: $81.00Was: $94.95Subtotal: -
On Sale
PROX Top End Gasket Kit - Polaris 800 35.5812
PROX
MSRP: $74.95Now: $64.00Was: $74.95A top-end gasket failure can compromise your entire engine's integrity, leading to costly downtime and performance loss. The PROX Top End Gasket Kit delivers OEM-equivalent sealing with precision...09346648- SKU:
- 09346648
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- RIDING STYLE:
- SNOW
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
MSRP: $74.95Now: $64.00Was: $74.95Qty in Cart: 0Quantity:Price:MSRP: $74.95Now: $64.00Was: $74.95Subtotal: -
On Sale
PROX Top End Gasket Kit - Polaris RMK/Fusion/Switchback 35.5906
PROX
MSRP: $79.95Now: $68.00Was: $79.95A top-end gasket kit is essential maintenance for any Polaris snowmobile running hard—whether you're pushing your RMK, Fusion, or Switchback to the limit on the trail or in competition. Worn or...09346656- SKU:
- 09346656
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- SNOW
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
MSRP: $79.95Now: $68.00Was: $79.95Qty in Cart: 0Quantity:Price:MSRP: $79.95Now: $68.00Was: $79.95Subtotal: -
On Sale
PROX Upper Rod Bearing - 18 mm x 22 mm x 22.8 mm 21.5400
PROX
MSRP: $10.99Now: $9.00Was: $10.99Piston rod-end bearings are critical to engine reliability, especially in high-RPM racing applications where lateral loads and reciprocating forces demand precision engineering. The PROX 18 x 22 x 22...09240251- SKU:
- 09240251
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- INSIDE DIAMETER:
- 18 MM
- INSIDE DIAMETER METRIC:
- 18 MM
- RIDING STYLE:
- SNOW
- OUTSIDE DIAMETER:
- 22 MM
- PRODUCT NAME:
- BEARING
- LENGTH:
- 22,8 MM
- LENGTH METRIC:
- 22.8 MM
- OUTSIDE DIAMETER METRIC:
- 22 MM
- STYLE:
- 2-STROKE
- UNITS:
- EACH
- APPLICATION:
- CONNECTING ROD
- MATERIAL:
- STAINLESS STEEL
MSRP: $10.99Now: $9.00Was: $10.99Qty in Cart: 0Quantity:Price:MSRP: $10.99Now: $9.00Was: $10.99Subtotal: -
On Sale
PROX Piston Kit - SeaDoo 600R ETEC 01.5618.000
PROX
MSRP: $111.22Now: $95.00Was: $111.22The PROX Piston Kit is engineered for the SeaDoo 600R ETEC to restore lost compression and performance after high-hour operation or ring blow-by conditions. Whether you're rebuilding after a season...09106064- SKU:
- 09106064
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- BORE SIZE METRIC:
- 72.30 MM
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- SNOW
MSRP: $111.22Now: $95.00Was: $111.22Qty in Cart: 0Quantity:Price:MSRP: $111.22Now: $95.00Was: $111.22Subtotal: -
On Sale
PROX Ring Set 02.5802.000
PROX
MSRP: $24.95Now: $21.00Was: $24.95Proper ring sealing is fundamental to engine efficiency and longevity. The PROX Ring Set 02.5802.000 delivers optimized heat transfer and combustion chamber sealing to maintain compression integrity...09120452- SKU:
- 09120452
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- SET
- RIDING STYLE:
- SNOW
- BORE SIZE METRIC:
- 81.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON RING
MSRP: $24.95Now: $21.00Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $21.00Was: $24.95Subtotal: -
On Sale
PROX Ring Set 02.5802.100
PROX
MSRP: $24.95Now: $21.00Was: $24.95Proper ring sealing is fundamental to engine efficiency and longevity. PROX Ring Set 02.5802.100 delivers optimized heat transfer and combustion sealing that directly impacts compression, blow-by...09120454- SKU:
- 09120454
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- SET
- RIDING STYLE:
- SNOW
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE SIZE METRIC:
- 82.00 MM
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- WATERCRAFT
MSRP: $24.95Now: $21.00Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $21.00Was: $24.95Subtotal: -
On Sale
PROX Ring Set 02.2599.000
PROX
MSRP: $24.95Now: $21.00Was: $24.95A properly sealed combustion chamber is non-negotiable for engine reliability and peak performance. PROX ring sets are engineered to maintain consistent compression and minimize blow-by, directly...09120455- SKU:
- 09120455
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- SET
- BORE SIZE METRIC:
- 72.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- SNOW
- PRODUCT NAME:
- PISTON RING
MSRP: $24.95Now: $21.00Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $21.00Was: $24.95Subtotal: -
On Sale
PROX Piston Kit 01.5599.100
PROX
MSRP: $105.95Now: $90.00Was: $105.95When your engine's pistons show wear, power delivery suffers and reliability becomes questionable. The PROX Piston Kit 01.5599.100 restores OEM-level performance with precision-engineered components...09103294- SKU:
- 09103294
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE SIZE METRIC:
- 74.00 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- PISTON MATERIAL:
- HYPEREUTECTIC ALLOY
- PISTON SIZE METRIC:
- STANDARD
- RIDING STYLE:
- SNOW
MSRP: $105.95Now: $90.00Was: $105.95Qty in Cart: 0Quantity:Price:MSRP: $105.95Now: $90.00Was: $105.95Subtotal: -
On Sale
PROX Piston Kit 01.5603.000
PROX
MSRP: $105.95Now: $90.00Was: $105.95When your engine demands reliability at the highest RPMs, OEM-equivalent pistons are non-negotiable. The PROX Piston Kit 01.5603.000 delivers Japanese manufacturing precision with high-silicon...09103297- SKU:
- 09103297
- Availability:
- Ships Same Business Day
- Weight:
- 1.08 LBS
- PISTON MATERIAL:
- HYPEREUTECTIC ALLOY
- PISTON SIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 77.25 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- RIDING STYLE:
- SNOW
MSRP: $105.95Now: $90.00Was: $105.95Qty in Cart: 0Quantity:Price:MSRP: $105.95Now: $90.00Was: $105.95Subtotal: -
On Sale
PROX Top End Gasket Set - Kawasaki/Suzuki 35.4334
PROX
MSRP: $62.95Now: $51.00Was: $62.95A top-end gasket set is essential for maintaining compression integrity and preventing coolant or oil seepage in high-performance applications. PROX gaskets are engineered to OEM specifications with...09345766- SKU:
- 09345766
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET SET
- UNITS:
- SET
MSRP: $62.95Now: $51.00Was: $62.95
