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!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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PROX Piston Kit 01.2707.A
PROX
$149.95Piston failure doesn't just sideline your engine—it can destroy your entire build. The PROX Piston Kit 01.2707.A delivers OEM-spec reliability with precision manufacturing that keeps your combustion...09101204- SKU:
- 09101204
- Availability:
- Ships Same Business Day
- Weight:
- 1.24 LBS
- PISTON DIAMETER METRIC:
- 101.94 MM
- BORE SIZE METRIC:
- 101.94 MM
- RIDING STYLE:
- UTV
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PISTON SIZE METRIC:
- STANDARD SIZE A
- PRODUCT NAME:
- HIGH COMPRESSION PISTON KIT
$149.95Qty in Cart: 0Quantity:Price:$149.95Subtotal: -
PROX Piston Kit 01.3420.A
PROX
$205.95A worn or damaged piston directly compromises engine efficiency, compression, and reliability—making a quality replacement essential for maintaining peak performance. The PROX Piston Kit 01.3420.A...09101206- SKU:
- 09101206
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- BORE SIZE METRIC:
- 89.96 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- PISTON DIAMETER METRIC:
- 89.96 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$205.95 -
PROX Piston Kit 01.3420.C
PROX
$205.95Pistons are the hardworking heart of any engine, converting combustion energy into power. When OEM pistons wear or fail, you need a direct replacement that matches factory specifications without...09101208- SKU:
- 09101208
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- PISTON DIAMETER METRIC:
- 89.98 MM
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 89.98 MM
- PISTON SIZE METRIC:
- STANDARD SIZE C
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$205.95 -
PROX Piston Kit 01.1363.000
PROX
$99.95Stock pistons wear out—and when they do, your engine's performance and reliability suffer. The PROX Piston Kit 01.1363.000 restores your engine to OEM specifications with precision-manufactured...09101365- SKU:
- 09101365
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
- PISTON SIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 65.50 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 65.50 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$99.95Qty in Cart: 0Quantity:Price:$99.95Subtotal: -
PROX Piston Kit 01.1363.050
PROX
$110.95A worn or damaged piston compromises engine efficiency, power delivery, and reliability. The PROX Piston Kit 01.1363.050 restores OEM-level performance with precision-engineered components...09101366- SKU:
- 09101366
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
- PRODUCT NAME:
- PISTON KIT
- PISTON SIZE IMPERIAL:
- +0.050'
- PISTON DIAMETER METRIC:
- 66.00 MM
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 66.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$110.95 -
PROX Piston Kit 01.1363.100
PROX
$99.95When your engine demands reliability and precision, OEM-quality pistons are non-negotiable. The PROX Piston Kit 01.1363.100 delivers factory-spec performance with CNC-machined tolerances that ensure...09101367- SKU:
- 09101367
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 66.50 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 66.50 MM
- PISTON SIZE IMPERIAL:
- 0.100'
- PRODUCT NAME:
- PISTON KIT
$99.95Qty in Cart: 0Quantity:Price:$99.95Subtotal: -
PROX Piston Kit 01.2225.A
PROX
$121.95A piston kit is one of the most critical components in your engine's combustion chamber—it directly impacts compression ratio, heat dissipation, and overall engine reliability. The PROX Piston Kit 01...09100594- SKU:
- 09100594
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE SIZE METRIC:
- 53.95 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 53.95 MM
- RIDING STYLE:
- OFF-ROAD
- PISTON SIZE METRIC:
- STANDARD SIZE A
- PRODUCT NAME:
- PISTON KIT
$121.95 -
PROX Piston Kit 01.2225.B
PROX
$121.95Your engine's pistons are the hardworking heart of combustion—they must withstand extreme pressure, temperature cycles, and precision tolerances that factory originals often compromise on after miles...09100595- SKU:
- 09100595
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON DIAMETER METRIC:
- 53.96 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- STANDARD SIZE B
- BORE SIZE METRIC:
- 53.96 MM
- PRODUCT NAME:
- PISTON KIT
$121.95 -
PROX Piston Kit 01.2225.C
PROX
$121.95When your engine is running at the limit, piston reliability becomes non-negotiable. The PROX Piston Kit 01.2225.C delivers OEM-quality replacement pistons engineered to withstand high-RPM demands...09100596- SKU:
- 09100596
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- BORE SIZE METRIC:
- 53.97 MM
- PISTON SIZE METRIC:
- STANDARD SIZE C
- UNITS:
- EACH
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- PISTON DIAMETER METRIC:
- 53.97 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
$121.95 -
PROX Piston Kit 01.1225.A
PROX
$105.95A piston kit is the heart of your engine's combustion cycle, and worn or damaged pistons directly compromise compression, power delivery, and reliability. The PROX Piston Kit 01.1225.A delivers...09100597- SKU:
- 09100597
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 53.94 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- PRODUCT NAME:
- PISTON KIT
$105.95Qty in Cart: 0Quantity:Price:$105.95Subtotal: -
PROX Piston Kit 01.1225.B
PROX
$105.95If your engine is showing signs of wear—excessive blow-by, loss of compression, or visible scoring on the cylinder walls—a worn piston kit is the direct path back to reliable performance and proper...09100598- SKU:
- 09100598
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- PISTON DIAMETER METRIC:
- 53.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- BORE SIZE METRIC:
- 53.95 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- STANDARD SIZE B
- RIDING STYLE:
- OFF-ROAD
$105.95Qty in Cart: 0Quantity:Price:$105.95Subtotal: -
PROX Piston Kit 01.1225.C
PROX
$105.95Whether you're rebuilding a tired engine or replacing worn components after high-mileage use, the PROX Piston Kit 01.1225.C delivers OEM-spec reliability with precision engineering that ensures...09100599- SKU:
- 09100599
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- PISTON DIAMETER METRIC:
- 53.96 MM
- UNITS:
- EACH
- BORE SIZE METRIC:
- 53.96 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- STANDARD SIZE C
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
$105.95Qty in Cart: 0Quantity:Price:$105.95Subtotal: -
PROX Piston Kit 01.4325.B
PROX
$139.95When your engine's pistons show wear or damage, you're facing power loss, compression issues, and potential catastrophic failure. The PROX Piston Kit 01.4325.B delivers OEM-quality replacement...09100600- SKU:
- 09100600
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE SIZE METRIC:
- 66.35 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- STANDARD SIZE B
- PISTON DIAMETER METRIC:
- 66.35 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
$139.95Qty in Cart: 0Quantity:Price:$139.95Subtotal: -
PROX Piston Kit 01.2435.A
PROX
$210.95A piston kit is one of the most critical components in your engine's combustion cycle, and worn or damaged pistons directly compromise compression, power output, and reliability. The PROX Piston Kit...09100603- SKU:
- 09100603
- Availability:
- Ships Same Business Day
- Weight:
- 0.92 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 94.95 MM
- PISTON DIAMETER METRIC:
- 94.95 MM
- PISTON SIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
$210.95 -
PROX Piston Kit 01.2435.C
PROX
$195.95When your engine's pistons wear beyond acceptable tolerances, power delivery suffers, compression drops, and fuel efficiency tanks. The PROX Piston Kit 01.2435.C restores your engine to factory...09100605- SKU:
- 09100605
- Availability:
- Ships Same Business Day
- Weight:
- 0.92 LBS
- PISTON SIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 94.97 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PISTON DIAMETER METRIC:
- 94.97 MM
- PRODUCT NAME:
- PISTON KIT
$195.95Qty in Cart: 0Quantity:Price:$195.95Subtotal: -
PROX Piston Kit 01.1414.B
PROX
$210.95A piston kit is fundamental to engine reliability and performance—wear or damage compromises compression, efficiency, and power delivery. The PROX Piston Kit 01.1414.B delivers OEM-grade quality with...09100608- SKU:
- 09100608
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- PISTON DIAMETER METRIC:
- 95.97 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 95.97 MM
- PISTON SIZE METRIC:
- STANDARD SIZE B
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$210.95 -
PROX Piston Kit 01.1075.000
PROX
$77.95A piston kit is the heart of your engine's combustion cycle—when yours are worn, scored, or damaged, you lose compression, power, and reliability. The PROX Piston Kit 01.1075.000 restores your engine...09100399- SKU:
- 09100399
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 47.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- BORE SIZE METRIC:
- 47.00 MM
$77.95 -
PROX Piston Kit 01.1075.050
PROX
$77.95When your engine demands precision and reliability, OEM-equivalent pistons are non-negotiable. The PROX Piston Kit 01.1075.050 delivers factory-spec performance with Japanese manufacturing precision,...09100400- SKU:
- 09100400
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- PISTON DIAMETER METRIC:
- 47.50 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- PISTON SIZE IMPERIAL:
- +0.020'
- BORE SIZE METRIC:
- 47.50 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$77.95 -
PROX Piston Kit 01.1075.100
PROX
$59.95Worn or damaged pistons compromise engine efficiency, reduce horsepower, and accelerate wear on surrounding components. The PROX Piston Kit 01.1075.100 delivers OEM-equivalent performance with...09100401- SKU:
- 09100401
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- BORE SIZE METRIC:
- 48.00 MM
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 48.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE IMPERIAL:
- +0.040'
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$59.95 -
PROX Piston Kit 01.1403.A
PROX
$195.95Your engine's pistons are the workhorses converting combustion into power—wear them out, and you lose compression, efficiency, and reliability. The PROX Piston Kit 01.1403.A delivers OEM-equivalent...09100418- SKU:
- 09100418
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- PRODUCT NAME:
- PISTON KIT
- PISTON DIAMETER METRIC:
- 95.96 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- BORE SIZE METRIC:
- 95.96 MM
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$195.95Qty in Cart: 0Quantity:Price:$195.95Subtotal: -
PROX Piston Kit 01.1403.B
PROX
$195.95A piston kit is the heart of your engine's combustion cycle—wear or damage here directly impacts power delivery, fuel efficiency, and engine longevity. The PROX Piston Kit 01.1403.B delivers...09100419- SKU:
- 09100419
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- BORE SIZE METRIC:
- 95.97 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- PISTON DIAMETER METRIC:
- 95.97 MM
- PISTON SIZE METRIC:
- STANDARD SIZE B
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$195.95Qty in Cart: 0Quantity:Price:$195.95Subtotal: -
PROX Piston Kit 01.4335.A
PROX
$179.95Worn or damaged pistons compromise engine compression, efficiency, and reliability—leading to power loss, increased fuel consumption, and potential catastrophic failure. The PROX Piston Kit 01.4335.A...09100425- SKU:
- 09100425
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PISTON SIZE METRIC:
- STANDARD SIZE A
- RIDING STYLE:
- OFF-ROAD
- PISTON DIAMETER METRIC:
- 76.96 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- BORE SIZE METRIC:
- 76.96 MM
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
PROX Piston Kit 01.4335.B
PROX
$188.95Factory piston performance starts with precision engineering—and the PROX Piston Kit 01.4335.B delivers exactly that. Built to OEM specifications using high-silicon aluminum alloy, this...09100426- SKU:
- 09100426
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PISTON DIAMETER METRIC:
- 76.97 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- STANDARD SIZE B
- UNITS:
- EACH
- BORE SIZE METRIC:
- 76.97 MM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PISTON KIT
$188.95 -
PROX Piston Kit 01.4335.C
PROX
$179.95Factory piston wear compromises compression, ring seal, and combustion efficiency—leading to power loss, increased blowby, and accelerated engine degradation. The PROX Piston Kit 01.4335.C restores...09100427- SKU:
- 09100427
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- STANDARD SIZE C
- UNITS:
- EACH
- BORE SIZE METRIC:
- 76.98 MM
- PISTON DIAMETER METRIC:
- 76.98 MM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PISTON KIT
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
PROX Piston Kit 01.1222.A
PROX
$132.95A piston kit is one of the most critical components in engine performance and longevity. The PROX Piston Kit 01.1222.A delivers OEM-equivalent reliability with the precision engineering that...09100428- SKU:
- 09100428
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- BORE SIZE METRIC:
- 53.94 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- RIDING STYLE:
- OFF-ROAD
$132.95 -
PROX Piston Kit 01.1222.B
PROX
$105.95If your engine is showing signs of wear—loss of compression, increased blow-by, or worn ring grooves—a quality piston kit is your most direct path to restored performance and reliability. The PROX...09100429- SKU:
- 09100429
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 53.95 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 53.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- STANDARD SIZE B
- UNITS:
- EACH
- PRODUCT NAME:
- PISTON KIT
$105.95Qty in Cart: 0Quantity:Price:$105.95Subtotal: -
PROX Piston Kit 01.3122.A
PROX
$99.95When your engine is running at the edge of performance, factory pistons become a liability. The PROX Piston Kit 01.3122.A delivers OEM-equivalent reliability with precision manufacturing that keeps...09100431- SKU:
- 09100431
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- PISTON DIAMETER METRIC:
- 47.94 MM
- BORE SIZE METRIC:
- 47.94 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- RIDING STYLE:
- OFF-ROAD
$99.95 -
PROX Piston Kit 01.3122.B
PROX
$99.95A piston kit is the foundation of reliable engine performance—when factory pistons wear or fail, you need a direct OEM replacement that matches original specifications precisely. The PROX Piston Kit...09100432- SKU:
- 09100432
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- PISTON DIAMETER METRIC:
- 47.95 MM
- BORE SIZE METRIC:
- 47.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- PISTON SIZE METRIC:
- STANDARD SIZE B
- RIDING STYLE:
- OFF-ROAD
$99.95 -
PROX Piston Kit 01.3224.A
PROX
$105.95A worn or damaged piston compromises combustion efficiency, fuel economy, and overall engine reliability. The PROX Piston Kit 01.3224.A delivers OEM-equivalent performance with precision engineering,...09100434- SKU:
- 09100434
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PISTON DIAMETER METRIC:
- 53.95 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 53.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$105.95Qty in Cart: 0Quantity:Price:$105.95Subtotal: -
PROX Piston Kit 01.3224.B
PROX
$101.95When your engine demands precision and reliability at high RPM, compromised pistons will cost you performance—and credibility. The PROX Piston Kit 01.3224.B delivers OEM-equivalent performance...09100435- SKU:
- 09100435
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- BORE SIZE METRIC:
- 53.96 MM
- PISTON DIAMETER METRIC:
- 53.96 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- PISTON SIZE METRIC:
- STANDARD SIZE B
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$101.95Qty in Cart: 0Quantity:Price:$101.95Subtotal: -
PROX Piston Kit 01.3420.B
PROX
$185.95A piston kit is the heart of your engine's combustion cycle—worn or damaged pistons compromise compression, power delivery, and reliability. The PROX Piston Kit 01.3420.B delivers OEM-equivalent...09100438- SKU:
- 09100438
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$185.95 -
PROX Piston Kit 01.2429.A
PROX
$210.95A piston kit is the heart of reliable engine performance, and worn or damaged pistons compromise compression, power delivery, and fuel efficiency. The PROX Piston Kit 01.2429.A delivers...09100439- SKU:
- 09100439
- Availability:
- Ships Same Business Day
- Weight:
- 0.57 LBS
- BORE SIZE METRIC:
- 94.95 MM
- PISTON DIAMETER METRIC:
- 94.95 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$210.95 -
PROX Piston Kit 01.2429.B
PROX
$210.95A worn or damaged piston compromises combustion efficiency, reduces power output, and risks catastrophic engine failure. The PROX Piston Kit 01.2429.B delivers OEM-equivalent performance with...09100440- SKU:
- 09100440
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 94.96 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- STANDARD SIZE B
- UNITS:
- EACH
- BORE SIZE METRIC:
- 94.96 MM
- PRODUCT NAME:
- PISTON KIT
$210.95 -
PROX Piston Kit 01.2020.250
PROX
$99.95OEM-specification pistons are critical to engine reliability and performance consistency—factory tolerances and materials directly impact combustion efficiency, ring seal integrity, and long-term...09100891- SKU:
- 09100891
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- BORE SIZE METRIC:
- 66.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- PISTON SIZE METRIC:
- +2.50 MM
- PISTON DIAMETER METRIC:
- 66.50 MM
$99.95 -
PROX Piston Kit 01.3180.050
PROX
$93.95When your engine's pistons wear beyond safe operating limits, you're looking at catastrophic failure—loss of compression, blow-by, and potential internal damage that can sideline your build. The PROX...09100893- SKU:
- 09100893
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- BORE SIZE METRIC:
- 50.50 MM
- PISTON SIZE METRIC:
- +0.50 MM
- PISTON DIAMETER METRIC:
- 50.50 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- RIDING STYLE:
- ATV
$93.95 -
PROX Piston Kit 01.3180.000
PROX
$93.95A worn or damaged piston directly compromises compression, combustion efficiency, and overall engine reliability—which is why OEM-quality replacement matters. The PROX Piston Kit 01.3180.000 delivers...09100906- SKU:
- 09100906
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- PISTON SIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 50.50 MM
- RIDING STYLE:
- ATV
- PISTON DIAMETER METRIC:
- 50.50 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$93.95 -
PROX Piston Kit 01.1111.B
PROX
$93.95When your engine's pistons wear out, performance and reliability suffer—and replacement is non-negotiable. The PROX Piston Kit 01.1111.B delivers OEM-equivalent quality without the dealership markup,...09100913- SKU:
- 09100913
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- BORE SIZE METRIC:
- 46.95 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- PISTON DIAMETER METRIC:
- 46.95 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
$93.95Qty in Cart: 0Quantity:Price:$93.95Subtotal: -
PROX Piston Kit 01.1111.C
PROX
$93.95When your engine's pistons show wear or you're rebuilding after high-mileage use, OEM-equivalent replacement is non-negotiable for reliability and performance. The PROX Piston Kit 01.1111.C delivers...09100914- SKU:
- 09100914
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 46.96 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BORE SIZE METRIC:
- 46.96 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- PISTON SIZE METRIC:
- STANDARD
$93.95 -
PROX Piston Kit - Standard - Yamaha YZ 65 01.2018.A
PROX
$88.95The PROX Piston Kit delivers the reliability and precision your Yamaha YZ 65 demands in high-stress offroad conditions. Whether you're rebuilding after hard use or upgrading your engine package, this...09105694- SKU:
- 09105694
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 43.44 MM
- BORE - OVERSIZE:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$88.95 -
PROX Piston Kit - Standard - Yamaha YZ 65 01.2018.B
PROX
$88.95The PROX Piston Kit maintains optimal compression and reliable performance in your YZ 65, whether you're running stock power or building toward higher output. OEM pistons wear over time, causing...09105695- SKU:
- 09105695
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- BORE - OVERSIZE:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- STANDARD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 43.45 MM
- PRODUCT NAME:
- PISTON KIT
$88.95
