Piston and Ring Kits

Piston and Ring Kits

Piston and Ring Kits

J&J Motorsports is a leading supplier of dirt bike engine parts, offering a wide selection of pistons and piston ring kits from popular brands like Wiseco and Vertex Racing. We're proud to offer dirt bike parts from some of the most trusted names in the business, and we're committed to offering the best prices and customer service around. Whether you're looking for a replacement piston for your dirt bike or a complete piston ring kit, we've got you covered. Browse our selection of dirt bike engine parts today and find the perfect fit for your ride. Thanks for shopping with J&J Motorsports!

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  • KB PERFORMANCE Piston Kit - Twin Cam 88 KB426C.020
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    KB PERFORMANCE Piston Kit - Twin Cam 88 KB426C.020

    KB PERFORMANCE

    $306.95
    KB PERFORMANCE Piston Kit Twin Cam 88 KB426C.020Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy, Allows a tighter fit and longer piston and ring life, Diamond-machined pistons are held to plus or minus one gram weight...
    9106095
    SKU:
    9106095
    Availability:
    Ships Same Business Day
    Weight:
    3.25 LBS
    PISTON MATERIAL:
    HYPEREUTECTIC ALLOY
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    BORE OVERSIZE - IMPERIAL:
    +0.020'
    UNITS:
    KIT
    BORE SIZE IMPERIAL:
    3.750'
    COMPRESSION RATIO IMPERIAL:
    10.5:1
    Add to Cart
    $306.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $306.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit - Twin Cam 88 KB426C.030
    Quick view

    KB PERFORMANCE Piston Kit - Twin Cam 88 KB426C.030

    KB PERFORMANCE

    $306.95
    KB PERFORMANCE Piston Kit Twin Cam 88 KB426C.030Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy, Allows a tighter fit and longer piston and ring life, Diamond-machined pistons are held to plus or minus one gram weight...
    9106096
    SKU:
    9106096
    Availability:
    Ships Same Business Day
    Weight:
    3.30 LBS
    Ships from Manufacture | Call to Order (231) 767-5055
    $306.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $306.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • KB PERFORMANCE Piston Kit - Standard - M8 KB542LCA.STD
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    KB PERFORMANCE Piston Kit - Standard - M8 KB542LCA.STD

    KB PERFORMANCE

    $444.95
    KB PERFORMANCE Piston Kit Standard M8 KB542LCA.STDSuper Duty Series includes:, Anodized top ring groove and crown, Line2Line abradable skirt coating applied to .003" total thickness for a zero initial fit to allow coating to hone in for a tight quiet...
    9105724
    SKU:
    9105724
    Availability:
    Ships Same Business Day
    Weight:
    2.95 LBS
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    STROKE LENGTH IMPERIAL:
    4-1/2'
    UNITS:
    KIT
    DISPLACEMENT:
    117'
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    BORE SIZE METRIC:
    104.77 MM
    PISTON MATERIAL:
    ALUMINUM
    Add to Cart
    $444.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $444.95
    Subtotal:
    Add to Cart
  • On Sale
    KB PERFORMANCE PISTON KIT M8 117" +010 KB542LCA.010
    Quick view

    KB PERFORMANCE PISTON KIT M8 117" +010 KB542LCA.010

    KB PERFORMANCE

    Now: $289.22
    Was: $444.95
    KB PERFORMANCE PISTON KIT M8 117" +010 KB542LCA.010Super Duty Series includes:, Anodized top ring groove and crown, Line2Line abradable skirt coating applied to .003" total thickness for a zero initial fit to allow coating to hone in for a tight quiet...
    9105725
    SKU:
    9105725
    Availability:
    Ships Same Business Day
    Weight:
    2.95 LBS
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    STROKE LENGTH IMPERIAL:
    4-1/2'
    BORE SIZE METRIC:
    104.77 MM
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    DISPLACEMENT:
    117'
    PISTON MATERIAL:
    ALUMINUM
    UNITS:
    KIT
    Add to Cart
    Now: $289.22
    Was: $444.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $289.22
    Was: $444.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE PISTON KIT M8 117" +020 KB542LCA.020
    Quick view

    KB PERFORMANCE PISTON KIT M8 117" +020 KB542LCA.020

    KB PERFORMANCE

    $444.95
    KB PERFORMANCE PISTON KIT M8 117" +020 KB542LCA.020Super Duty Series includes:, Anodized top ring groove and crown, Line2Line abradable skirt coating applied to .003" total thickness for a zero initial fit to allow coating to hone in for a tight quiet...
    9105726
    SKU:
    9105726
    Availability:
    Ships Same Business Day
    Weight:
    2.90 LBS
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    STROKE LENGTH IMPERIAL:
    4-1/2'
    BORE SIZE METRIC:
    104.77 MM
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    DISPLACEMENT:
    117'
    PISTON MATERIAL:
    ALUMINUM
    UNITS:
    KIT
    Ships from Manufacture | Call to Order (231) 767-5055
    $444.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $444.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • KB PERFORMANCE PISTON KIT M8 117" +030 KB542LCA.030
    Quick view

    KB PERFORMANCE PISTON KIT M8 117" +030 KB542LCA.030

    KB PERFORMANCE

    $444.95
    KB PERFORMANCE PISTON KIT M8 117" +030 KB542LCA.030Super Duty Series includes:, Anodized top ring groove and crown, Line2Line abradable skirt coating applied to .003" total thickness for a zero initial fit to allow coating to hone in for a tight quiet...
    9105727
    SKU:
    9105727
    Availability:
    Ships Same Business Day
    Weight:
    3.00 LBS
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    DISPLACEMENT:
    117'
    RIDING STYLE:
    STREET
    BORE SIZE METRIC:
    104.77 MM
    PISTON MATERIAL:
    ALUMINUM
    STROKE LENGTH IMPERIAL:
    4-1/2'
    UNITS:
    KIT
    PRODUCT NAME:
    PISTON KIT
    Add to Cart
    $444.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $444.95
    Subtotal:
    Add to Cart
  • On Sale
    KB PERFORMANCE PISTON KIT M8 117" +040 KB542LCA.040
    Quick view

    KB PERFORMANCE PISTON KIT M8 117" +040 KB542LCA.040

    KB PERFORMANCE

    Now: $289.22
    Was: $444.95
    KB PERFORMANCE PISTON KIT M8 117" +040 KB542LCA.040Super Duty Series includes:, Anodized top ring groove and crown, Line2Line abradable skirt coating applied to .003" total thickness for a zero initial fit to allow coating to hone in for a tight quiet...
    9105728
    SKU:
    9105728
    Availability:
    Ships Same Business Day
    Weight:
    3.00 LBS
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    DISPLACEMENT:
    117'
    UNITS:
    KIT
    BORE SIZE METRIC:
    104.77 MM
    PISTON MATERIAL:
    ALUMINUM
    STROKE LENGTH IMPERIAL:
    4-1/2'
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    Add to Cart
    Now: $289.22
    Was: $444.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $289.22
    Was: $444.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit - 124" - Standard - M8 KB576LCA.STD KB PERFORMANCE Piston Kit - 124" - Standard - M8 KB576LCA.STD
    Quick view

    KB PERFORMANCE Piston Kit - 124" - Standard - M8 KB576LCA.STD

    KB PERFORMANCE

    $464.95
    KB PERFORMANCE Piston Kit 124" Standard M8 KB576LCA.STDKB PERFORMANCE Piston Kit - 124" - Standard - M8
    9106177
    SKU:
    9106177
    Availability:
    Ships Same Business Day
    Weight:
    3.15 LBS
    BORE SIZE IMPERIAL:
    4.250'
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    DISPLACEMENT:
    124'
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    UNITS:
    KIT
    Add to Cart
    $464.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $464.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit - 124" - +.005" - M8 KB576LCA.005
    Quick view

    KB PERFORMANCE Piston Kit - 124" - +.005" - M8 KB576LCA.005

    KB PERFORMANCE

    $464.95
    KB PERFORMANCE Piston Kit 124" +.005" M8 KB576LCA.005KB PERFORMANCE Piston Kit - 124" - +.005" - M8
    9106178
    SKU:
    9106178
    Availability:
    Ships Same Business Day
    Weight:
    3.15 LBS
    BORE OVERSIZE - IMPERIAL:
    +0.005'
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    DISPLACEMENT:
    124'
    BORE - OVERSIZE:
    +0,005'
    UNITS:
    KIT
    Add to Cart
    $464.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $464.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit KB258.STD
    Quick view

    KB PERFORMANCE Piston Kit KB258.STD

    KB PERFORMANCE

    $242.95
    KB PERFORMANCE Piston Kit KB258.STDManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy, Allow a tighter fit and longer piston and ring life, Diamond-machined pistons are held to plus or minus one gram weight and less than...
    9102016
    SKU:
    9102016
    Availability:
    Ships Same Business Day
    Weight:
    2.75 LBS
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    PISTON MATERIAL:
    HYPEREUTECTIC ALLOY
    BORE SIZE IMPERIAL:
    3.498'
    COMPRESSION RATIO IMPERIAL:
    8.6:1
    UNITS:
    KIT
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    Add to Cart
    $242.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $242.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit KB258.030
    Quick view

    KB PERFORMANCE Piston Kit KB258.030

    KB PERFORMANCE

    $242.95
    KB PERFORMANCE Piston Kit KB258.030Manufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy, Allow a tighter fit and longer piston and ring life, Diamond-machined pistons are held to plus or minus one gram weight and less than...
    9102017
    SKU:
    9102017
    Availability:
    Ships Same Business Day
    Weight:
    2.75 LBS
    PISTON MATERIAL:
    HYPEREUTECTIC ALLOY
    BORE OVERSIZE - IMPERIAL:
    +0.030'
    COMPRESSION RATIO IMPERIAL:
    8.6:1
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    BORE SIZE IMPERIAL:
    3.498'
    Add to Cart
    $242.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $242.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit KB258.040
    Quick view

    KB PERFORMANCE Piston Kit KB258.040

    KB PERFORMANCE

    $242.95
    KB PERFORMANCE Piston Kit KB258.040Manufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy, Allow a tighter fit and longer piston and ring life, Diamond-machined pistons are held to plus or minus one gram weight and less than...
    9102018
    SKU:
    9102018
    Availability:
    Ships Same Business Day
    Weight:
    2.50 LBS
    COMPRESSION RATIO IMPERIAL:
    8.6:1
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    BORE OVERSIZE - IMPERIAL:
    +0.040'
    PISTON MATERIAL:
    HYPEREUTECTIC ALLOY
    BORE SIZE IMPERIAL:
    3.498'
    UNITS:
    KIT
    Add to Cart
    $242.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $242.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit KB305.040
    Quick view

    KB PERFORMANCE Piston Kit KB305.040

    KB PERFORMANCE

    $255.95
    KB PERFORMANCE Piston Kit KB305.040Manufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy, Allow a tighter fit and longer piston and ring life, Diamond-machined pistons are held to plus or minus one gram weight and less than...
    9102019
    SKU:
    9102019
    Availability:
    Ships Same Business Day
    Weight:
    2.70 LBS
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    BORE SIZE IMPERIAL:
    3.498'
    COMPRESSION RATIO IMPERIAL:
    9.6:1
    BORE OVERSIZE - IMPERIAL:
    +0.040'
    PISTON MATERIAL:
    HYPEREUTECTIC ALLOY
    Add to Cart
    $255.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $255.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit KB348.010
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    KB PERFORMANCE Piston Kit KB348.010

    KB PERFORMANCE

    $306.95
    KB PERFORMANCE Piston Kit KB348.010Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy, Allows a tighter fit and longer piston and ring life, Diamond-machined pistons are held to plus or minus one gram weight and less than...
    9102020
    SKU:
    9102020
    Availability:
    Ships Same Business Day
    Weight:
    2.95 LBS
    BORE OVERSIZE - IMPERIAL:
    +0.010'
    BORE SIZE IMPERIAL:
    3.875'
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    COMPRESSION RATIO IMPERIAL:
    9.3:1
    PISTON MATERIAL:
    HYPEREUTECTIC ALLOY
    Add to Cart
    $306.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $306.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit - Twin Cam KB409C.STD
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    KB PERFORMANCE Piston Kit - Twin Cam KB409C.STD

    KB PERFORMANCE

    $245.95
    KB PERFORMANCE Piston Kit Twin Cam KB409C.STDManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy, Allows a tighter fit and longer piston and ring life, Diamond-machined pistons are held to plus or minus one gram weight and...
    9100915
    SKU:
    9100915
    Availability:
    Ships Same Business Day
    Weight:
    2.60 LBS
    BORE SIZE IMPERIAL:
    3.875'
    COMPRESSION RATIO IMPERIAL:
    10.0:1
    PISTON MATERIAL:
    HYPEREUTECTIC ALLOY
    RIDING STYLE:
    STREET
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    PRODUCT NAME:
    PISTON KIT
    UNITS:
    KIT
    Add to Cart
    $245.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $245.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit - Twin Cam KB409C.005
    Quick view

    KB PERFORMANCE Piston Kit - Twin Cam KB409C.005

    KB PERFORMANCE

    $245.95
    KB PERFORMANCE Piston Kit Twin Cam KB409C.005Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy, Allows a tighter fit and longer piston and ring life, Diamond-machined pistons are held to plus or minus one gram weight and...
    9100916
    SKU:
    9100916
    Availability:
    Ships Same Business Day
    Weight:
    2.40 LBS
    BORE SIZE IMPERIAL:
    3.875'
    COMPRESSION RATIO IMPERIAL:
    10.0:1
    PISTON MATERIAL:
    HYPEREUTECTIC ALLOY
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    BORE OVERSIZE - IMPERIAL:
    +0.005'
    UNITS:
    KIT
    Add to Cart
    $245.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $245.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Piston Kit - Twin Cam KB409C.010
    Quick view

    KB PERFORMANCE Piston Kit - Twin Cam KB409C.010

    KB PERFORMANCE

    $245.95
    KB PERFORMANCE Piston Kit Twin Cam KB409C.010Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy, Allows a tighter fit and longer piston and ring life, Diamond-machined pistons are held to plus or minus one gram weight and...
    9100917
    SKU:
    9100917
    Availability:
    Ships Same Business Day
    Weight:
    2.65 LBS
    BORE SIZE IMPERIAL:
    3.875'
    COMPRESSION RATIO IMPERIAL:
    10.0:1
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    BORE OVERSIZE - IMPERIAL:
    +0.010'
    UNITS:
    KIT
    PISTON MATERIAL:
    HYPEREUTECTIC ALLOY
    Add to Cart
    $245.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $245.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Forged Piston Kit KB922C.STD
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    KB PERFORMANCE Forged Piston Kit KB922C.STD

    KB PERFORMANCE

    $311.95
    KB PERFORMANCE Forged Piston Kit KB922C.STDPistons forged from 4032 aluminum alloy, Offset pin design for quiet operation, Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings, Piston pin lock rings available separately,...
    9100930
    SKU:
    9100930
    Availability:
    Ships Same Business Day
    Weight:
    2.45 LBS
    COMPRESSION RATIO IMPERIAL:
    9.0:1
    RIDING STYLE:
    STREET
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    BORE SIZE IMPERIAL:
    3.498'
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    BORE - OVERSIZE:
    STANDARD
    UNITS:
    KIT
    Ships from Manufacture | Call to Order (231) 767-5055
    $311.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $311.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • KB PERFORMANCE Forged Piston Kit - Twin Cam KB904C.STD
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    KB PERFORMANCE Forged Piston Kit - Twin Cam KB904C.STD

    KB PERFORMANCE

    $335.95
    KB PERFORMANCE Forged Piston Kit Twin Cam KB904C.STDPistons forged from 4032 aluminum alloy, Offset pin design for quiet operation, Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings, Piston pin lock rings available...
    9100933
    SKU:
    9100933
    Availability:
    Ships Same Business Day
    Weight:
    2.20 LBS
    BORE SIZE IMPERIAL:
    3.875'
    RIDING STYLE:
    STREET
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    UNITS:
    KIT
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    COMPRESSION RATIO IMPERIAL:
    9.25:1
    Add to Cart
    $335.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $335.95
    Subtotal:
    Add to Cart
  • KB PERFORMANCE Forged Piston Kit - Twin Cam KB906C.STD
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    KB PERFORMANCE Forged Piston Kit - Twin Cam KB906C.STD

    KB PERFORMANCE

    $335.95
    KB PERFORMANCE Forged Piston Kit Twin Cam KB906C.STDPistons forged from 4032 aluminum alloy, Offset pin design for quiet operation, Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings, Piston pin lock rings available...
    9100935
    SKU:
    9100935
    Availability:
    Ships Same Business Day
    Weight:
    2.40 LBS
    COMPRESSION RATIO IMPERIAL:
    10.5:1
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    BORE SIZE IMPERIAL:
    3.875'
    RIDING STYLE:
    STREET
    Add to Cart
    $335.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $335.95
    Subtotal:
    Add to Cart
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