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
-
PROX Connecting Rod 03.6311
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230148- SKU:
- 09230148
- Availability:
- Ships Same Business Day
- Weight:
- 1.11 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
$119.95 -
PROX Connecting Rod 03.3122
PROX
$109.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230149- SKU:
- 09230149
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
$109.95 -
PROX Connecting Rod 03.2423
PROX
$175.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230150- SKU:
- 09230150
- Availability:
- Ships Same Business Day
- Weight:
- 1.48 LBS
- UNITS:
- EACH
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- FORGED STEEL
$175.95 -
PROX Connecting Rod 03.3405
PROX
$175.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230152- SKU:
- 09230152
- Availability:
- Ships Same Business Day
- Weight:
- 1.58 LBS
- ENGINE TYPE:
- 4-STROKE
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$175.95 -
PROX Connecting Rod 03.2400
PROX
$165.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230153- SKU:
- 09230153
- Availability:
- Ships Same Business Day
- Weight:
- 1.54 LBS
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- FORGED STEEL
- RIDING STYLE:
- STREET
$165.95 -
PROX Connecting Rod 03.6217
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230154- SKU:
- 09230154
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- UNITS:
- EACH
- FEATURES:
- INCLUDES THRUST WASHERS
- MATERIAL:
- FORGED STEEL
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
$119.95 -
PROX Connecting Rod 03.4218
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230155- SKU:
- 09230155
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
$119.95 -
PROX Connecting Rod 03.6326
PROX
$165.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230156- SKU:
- 09230156
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- UNITS:
- EACH
- ENGINE TYPE:
- 4-STROKE
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
$165.95 -
PROX Connecting Rod 03.3207
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230157- SKU:
- 09230157
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- CONNECTING ROD KIT
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
- RIDING STYLE:
- OFF-ROAD
$119.95 -
PROX Connecting Rod 03.4334
PROX
$165.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230158- SKU:
- 09230158
- Availability:
- Ships Same Business Day
- Weight:
- 1.14 LBS
- UNITS:
- EACH
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
- MATERIAL:
- FORGED STEEL
- RIDING STYLE:
- OFF-ROAD
$165.95 -
PROX Connecting Rod 03.6320
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230159- SKU:
- 09230159
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
$119.95 -
PROX Connecting Rod 03.2225
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230160- SKU:
- 09230160
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
- UNITS:
- EACH
$119.95 -
PROX Connecting Rod 03.3316
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230162- SKU:
- 09230162
- Availability:
- Ships Same Business Day
- Weight:
- 1.07 LBS
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CONNECTING ROD KIT
- UNITS:
- EACH
$119.95 -
PROX Connecting Rod 03.1406
PROX
$129.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230163- SKU:
- 09230163
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- FEATURES:
- INCLUDES THRUST WASHERS
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
$129.95 -
PROX Connecting Rod 03.2401
PROX
$165.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230165- SKU:
- 09230165
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MATERIAL:
- FORGED STEEL
- UNITS:
- EACH
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
$165.95 -
PROX Connecting Rod 03.4223
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230169- SKU:
- 09230169
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
$119.95 -
PROX Connecting Rod 03.6248
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230171- SKU:
- 09230171
- Availability:
- Ships Same Business Day
- Weight:
- 0.83 LBS
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- FORGED STEEL
$119.95 -
PROX Connecting Rod 03.4214
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230172- SKU:
- 09230172
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
$119.95 -
PROX Connecting Rod 03.3224
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230174- SKU:
- 09230174
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CONNECTING ROD KIT
- UNITS:
- EACH
$119.95 -
PROX Connecting Rod 03.1661
PROX
$199.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230176- SKU:
- 09230176
- Availability:
- Ships Same Business Day
- Weight:
- 2.48 LBS
- ENGINE TYPE:
- 4-STROKE
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- FEATURES:
- INCLUDES THRUST WASHERS
$199.95 -
PROX Connecting Rod 03.2434
PROX
$175.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230177- SKU:
- 09230177
- Availability:
- Ships Same Business Day
- Weight:
- 1.51 LBS
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- ATV
- ENGINE TYPE:
- 4-STROKE
- UNITS:
- EACH
$175.95Qty in Cart: 0Quantity:Price:$175.95Subtotal: -
PROX Connecting Rod 03.3211
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230178- SKU:
- 09230178
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CONNECTING ROD KIT
- UNITS:
- EACH
$119.95 -
PROX Connecting Rod 03.1654
PROX
$199.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230179- SKU:
- 09230179
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- FEATURES:
- INCLUDES THRUST WASHERS
- MATERIAL:
- FORGED STEEL
- UNITS:
- EACH
$199.95 -
PROX Connecting Rod 03.6319
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230180- SKU:
- 09230180
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- ENGINE TYPE:
- 2-STROKE
- FEATURES:
- INCLUDES THRUST WASHERS
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$119.95 -
PROX Connecting Rod 03.6017
PROX
$109.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230182- SKU:
- 09230182
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- UNITS:
- EACH
$109.95 -
PROX Connecting Rod 03.2304
PROX
$119.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230186- SKU:
- 09230186
- Availability:
- Ships Same Business Day
- Weight:
- 1.04 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
$119.95 -
PROX Connecting Rod 03.1495
PROX
$165.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230187- SKU:
- 09230187
- Availability:
- Ships Same Business Day
- Weight:
- 1.67 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- MATERIAL:
- FORGED STEEL
$165.95 -
PROX Connecting Rod 03.4406
PROX
$175.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230189- SKU:
- 09230189
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- FORGED STEEL
$175.95 -
PROX Connecting Rod 03.2007
PROX
$79.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230193- SKU:
- 09230193
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
PROX Connecting Rod Kit - Yamaha YZ 250 F 03.2414
PROX
$165.95Come complete with crankpin, big-end bearing, small-end bearing and washers, Easy to install09230365- SKU:
- 09230365
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MATERIAL:
- FORGED
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
$165.95 -
PROX Connecting Rod 03.1090
PROX
$55.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230344- SKU:
- 09230344
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- FEATURES:
- INCLUDES THRUST WASHERS
- MATERIAL:
- FORGED STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
$55.95 -
PROX Connecting Rod 03.1409
PROX
$175.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230345- SKU:
- 09230345
- Availability:
- Ships Same Business Day
- Weight:
- 1.59 LBS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- FEATURES:
- INCLUDES THRUST WASHERS
- MATERIAL:
- FORGED STEEL
- ENGINE TYPE:
- 4-STROKE
$175.95 -
PROX Connecting Rod Kit - Beta RR250/300/X-Trainer 03.7313
PROX
$129.95Come complete with crankpin, big-end bearing, small-end bearing and washers, Easy to install09230352- SKU:
- 09230352
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
$129.95 -
PROX Connecting Rod 03.4342
PROX
$165.95Comes complete with crankpin, big-end bearing, small-end bearing, and washers, Easy to install09230322- SKU:
- 09230322
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- FORGED STEEL
$165.95 -
PROX Connecting Rod Kit - Honda XR200R/XL125K 03.1255
PROX
$109.95Come complete with crankpin, big-end bearing, small-end bearing and washers, Easy to install09230294- SKU:
- 09230294
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- UNITS:
- KIT
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- MATERIAL:
- FORGED
$109.95 -
PROX Piston Kit 01.1342.C
PROX
$185.95Manufactured in Japan and designed to be OEM replacement, Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances,...09030815- SKU:
- 09030815
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- BORE SIZE METRIC:
- 76.80 MM
- COMPRESSION RATIO IMPERIAL:
- 13.2:1
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- TOP END
- PISTON SIZE METRIC:
- STANDARD SIZE A
$185.95 -
PROX Piston Kit 01.1342.B
PROX
$185.95Manufactured in Japan and designed to be OEM replacement, Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances,...09030816- SKU:
- 09030816
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- PISTON SIZE METRIC:
- STANDARD SIZE B
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- TOP END
- COMPRESSION RATIO IMPERIAL:
- 13.2:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 76.80 MM
$185.95 -
PROX Piston Kit 01.1414.C
PROX
$195.95Manufactured in Japan and designed to be OEM replacement, Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances,...09030819- SKU:
- 09030819
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- BORE SIZE METRIC:
- 96.00 MM
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- STANDARD SIZE C
- UNITS:
- EACH
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
$195.95 -
PROX Piston Kit 01.1411.B
PROX
$195.95Manufactured in Japan and designed to be OEM replacement, Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances,...09030823- SKU:
- 09030823
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON SIZE METRIC:
- STANDARD SIZE B
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 95.97 MM
- RIDING STYLE:
- OFF-ROAD
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
$195.95 -
PROX Piston Kit 01.2114.C
PROX
$89.95Manufactured in Japan and designed to be OEM replacement, Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances,...09030828- SKU:
- 09030828
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- BORE SIZE METRIC:
- 47.50 MM
- PISTON SIZE METRIC:
- STANDARD SIZE C
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- EACH
$89.95
