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Forged Piston Kit

KB PERFORMANCE

Forged Piston Kit

$464.95

-

Piston Kit – Standard – M8

In Stock
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Part Number: 0910-6405 . KB596LCA.STD Categories:
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KB PERFORMANCE
  • Updates stock 107″, 114” or 117” motor to 124” or 128” when using 4.250” big bore cylinders
  • Valve pockets are designed to accept up to +4.00 mm oversized intake and exhaust valves
  • Type 3 hard-anodized crown offers corrosion resistance for alcohol-added fuels
  • Type 3 hard-anodized top ring groove eliminates micro-welding of ring to the groove and gives a hard-flat surface for ring to rotate on
  • OE-style round wire locks are easily installed
  • Heavy-duty wrist pins with true 0.9270” diameter to fit rods correctly
  • Line2Line AST skirt coating starts out with a near-zero wall clearance and through the break-in period hones the cylinders to produce the correct oil wedge, keeping the piston square to the cylinder for best ring seal and quiet operation
  • Kit includes pistons, rings, pins and locks
  • Requires 4.250″ bore cylinder sold separately.
Brand: KB PERFORMANCE
SKU: 0910-6405 . KB596LCA.STD
Part Number: 09106405
Categories: Top End > Engine, Top End > Parts, Top End > Category Tree v2.0
Name: Super-Duty Big Bore Piston Kit
Weight 3.15 lbs
Dimensions 6.25 × 5.5 × 5.47 in
Units

Kit
Bore - Oversize

Standard
Bore Oversize - Imperial

Standard
Compression Ratio Imperial

11.7:1
Displacement

128"
Product Name

Piston Kit
Riding Style

Street

Brand

KB PERFORMANCE

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Piston Kit - Standard - M8

Fitments

Year Make Model
2017 - 2021 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE
2018 - 2021 Harley-Davidson CVO Road Glide Custom FLTRXSE
2017 - 2021 Harley-Davidson CVO Street Glide FLHXSE
2020 - 2021 Harley-Davidson CVO Tri Glide FLHTCUTGSE
2017 - 2021 Harley-Davidson Electra Glide Police FLHTPI
2021 Harley-Davidson Electra Glide Revival
2019 - 2021 Harley-Davidson Electra Glide Standard EFI FLHTI
2017 - 2019 Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI
2017 - 2021 Harley-Davidson Electra Glide Ultra Limited FLHTK
2017 - 2019 Harley-Davidson Electra Glide Ultra Limited Low FLHTKL
2018 - 2020 Harley-Davidson FLDE Deluxe 107
2018 - 2019 Harley-Davidson FLFB Fat Boy 107
2018 - 2021 Harley-Davidson FLFBS Fat Boy 114
2021 Harley-Davidson FLH Electra Glide Revival
2018 - 2021 Harley-Davidson FLHC Heritage Classic 107
2018 - 2021 Harley-Davidson FLHCS Heritage Classic 114
2017 - 2021 Harley-Davidson FLHR Road King
2017 - 2021 Harley-Davidson FLHRXS Road King Special
2019 - 2021 Harley-Davidson FLHT Electra Glide Standard
2017 - 2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic
2017 - 2021 Harley-Davidson FLHTCUTG Tri Glide Ultra
2020 - 2021 Harley-Davidson FLHTCUTGSE CVO Tri Glide
2017 - 2021 Harley-Davidson FLHTK Ultra Limited
2017 - 2019 Harley-Davidson FLHTKL Ultra Limited Low
2017 - 2021 Harley-Davidson FLHTKSE CVO Limited
2017 - 2021 Harley-Davidson FLHX Street Glide
2017 - 2021 Harley-Davidson FLHXS Street Glide Special
2017 - 2021 Harley-Davidson FLHXSE CVO Street Glide
2017 - 2021 Harley-Davidson FLRT Freewheeler
2018 - 2021 Harley-Davidson FLSB Sport Glide 107
2018 - 2021 Harley-Davidson FLSL Softail Slim 107
2020 - 2021 Harley-Davidson FLTRK Road Glide Limited
2017 - 2019 Harley-Davidson FLTRU Road Glide Ultra
2017 - 2021 Harley-Davidson FLTRX Road Glide
2017 - 2021 Harley-Davidson FLTRXS Road Glide Special
2018 - 2021 Harley-Davidson FLTRXSE CVO Road Glide
2017 - 2021 Harley-Davidson Freewheeler FLRT
2018 - 2020 Harley-Davidson FXBB Street Bob 107
2021 Harley-Davidson FXBBS Street Bob 114
2018 - 2019 Harley-Davidson FXBR Breakout 107
2018 - 2020 Harley-Davidson FXBRS Breakout 114
2019 - 2020 Harley-Davidson FXDR 114
2019 - 2020 Harley-Davidson FXDRS FXDR 114
2018 - 2019 Harley-Davidson FXFB Fat Bob 107
2018 - 2021 Harley-Davidson FXFBS Fat Bob 114
2018 - 2020 Harley-Davidson FXLR Low Rider 107
2020 - 2021 Harley-Davidson FXLRS Low Rider S 114
2020 - 2021 Harley-Davidson FXST Softail Standard 107
2017 - 2021 Harley-Davidson Road Glide Custom FLTRX
2020 - 2021 Harley-Davidson Road Glide Limited FLTRK
2017 - 2021 Harley-Davidson Road Glide Special FLTRXS
2017 - 2019 Harley-Davidson Road Glide Ultra FLTRU
2017 - 2021 Harley-Davidson Road King EFI FLHR
2017 - 2021 Harley-Davidson Road King Special FLHRXS
2018 - 2020 Harley-Davidson Softail Breakout 114 FXBRS
2018 - 2019 Harley-Davidson Softail Breakout FXBR
2018 - 2020 Harley-Davidson Softail Deluxe FLDE
2018 - 2021 Harley-Davidson Softail Fat Bob 114 FXFBS
2018 - 2019 Harley-Davidson Softail Fat Bob FXFB
2018 - 2021 Harley-Davidson Softail Fat Boy 114 FLFBS
2018 - 2019 Harley-Davidson Softail Fat Boy FLFB
2018 - 2021 Harley-Davidson Softail Heritage Classic 114 FLHCS
2018 - 2021 Harley-Davidson Softail Heritage Classic FLHC
2018 - 2020 Harley-Davidson Softail Low Rider FXLR
2020 - 2021 Harley-Davidson Softail Low Rider S FXLRS
2018 - 2021 Harley-Davidson Softail Slim FLSL
2018 - 2021 Harley-Davidson Softail Sport Glide FLSB
2020 - 2021 Harley-Davidson Softail Standard FXST
2018 - 2021 Harley-Davidson Softail Street Bob FXBB
2017 - 2021 Harley-Davidson Street Glide EFI FLHX
2017 - 2021 Harley-Davidson Street Glide Special FLHXS
2017 - 2021 Harley-Davidson Tri Glide Ultra Classic FLHTCUTG

Fitment Disclosure

This quick reference fitment information is provided to direct you to our catalog information and the manufacturer’s information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.

General Safety Warning

Failure to follow manufacturer’s recommendations and requirements can cause product failure resulting in serious injury or death. While effort has been taken in collecting accurate fitment information, LeMans Corporation accepts no liability for loss or damage resulting from errors or omissions. If you believe any of the information provided is erroneous, please email .

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Please note our company only purchases Milwaukee 8 exhaust systems exclusively, and currently hold purchase orders dating back more than a year. Remember, no down payment is required to join this list, which sets us apart. The process is simple - when inventory is in stock, waitlist clients will be notified in the order received, and given 24 hours to complete purchase. Not ready to buy? No problem! Customers can remain on the list, but will be moved to the bottom.

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Due to their custom nature, all HPi exhaust system sales are FINAL. MPG cannot accept returns under any circumstances. Due to labor involved, no announced/advertised or military discounts can be applied to We appreciate your understanding.