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KB Performance Forged Piston Kit - 3.880 in. Bore - KB906

  • Part #: 13146405
  • Manufacturer Part #: KB906
This item is no longer available

Overview of KB Performance Forged Piston Kit - 3.880 in. Bore - KB906

  • Pistons forged from 4032 aluminum alloy
  • Offset pin design
  • Each kit contains two pistons with coated skirts, pins, spiro-lock pin clips and Hastings moly rings
  • Piston pin lock rings available separately; part no: 148981
  • Replacement rings are also available separately; part no: H13206R
  • Fits Twin Cam 96-06 (with 95 in. Big Bore)
  • Made in the U.S.A.


  • Our pistons, rings and kits are sold by application and bore size. Please note that STANDARD and OVERSIZES are not indicated. To get the correct part, you must know the standard bore size to make sure you are ordering either the standard or correct amount of oversize that you need. If you have any questions, please call Technical Service.

Specs for KB Performance Forged Piston Kit - 3.880 in. Bore - KB906

Bore Size 3.880 in.
Compression Ratio 10.5:1
Type - Pistons & Piston Rings Piston Kit
Units Each
Weight 2.70 lbs

Specs for KB Performance Forged Piston Kit - 3.880 in. Bore - KB906

Bore Size 3.880 in.
Compression Ratio 10.5:1
Type - Pistons & Piston Rings Piston Kit
Units Each
Weight 2.70 lbs

Fitment for KB Performance Forged Piston Kit - 3.880 in. Bore - KB906

See if this part fits your ride

Part 13146405 fits the following machines

Harley-Davidson
  • 2005 Harley-Davidson Dyna Low Rider - FXDL
  • 2004 Harley-Davidson Dyna Low Rider - FXDL
  • 2003 Harley-Davidson Dyna Low Rider - FXDL
  • 2002 Harley-Davidson Dyna Low Rider - FXDL
  • 2001 Harley-Davidson Dyna Low Rider - FXDL
  • 2000 Harley-Davidson Dyna Low Rider - FXDL
  • 1999 Harley-Davidson Dyna Low Rider - FXDL
  • 2006 Harley-Davidson Dyna Low Rider Injected - FXDL I
  • 2005 Harley-Davidson Dyna Low Rider Injected - FXDL I
  • 2004 Harley-Davidson Dyna Low Rider Injected - FXDL I
  • 2005 Harley-Davidson Dyna Super Glide - FXD
  • 2004 Harley-Davidson Dyna Super Glide - FXD
  • 2003 Harley-Davidson Dyna Super Glide - FXD
  • 2002 Harley-Davidson Dyna Super Glide - FXD
  • 2001 Harley-Davidson Dyna Super Glide - FXD
  • 2000 Harley-Davidson Dyna Super Glide - FXD
  • 1999 Harley-Davidson Dyna Super Glide - FXD
  • 2005 Harley-Davidson Dyna Super Glide Custom - FXDC
  • 2006 Harley-Davidson Dyna Super Glide Custom Injected - FXDC I
  • 2005 Harley-Davidson Dyna Super Glide Custom Injected - FXDC I
  • 2005 Harley-Davidson Dyna Super Glide Sport - FXDX
  • 2004 Harley-Davidson Dyna Super Glide Sport - FXDX
  • 2003 Harley-Davidson Dyna Super Glide Sport - FXDX
  • 2002 Harley-Davidson Dyna Super Glide Sport - FXDX
  • 2001 Harley-Davidson Dyna Super Glide Sport - FXDX
  • 2000 Harley-Davidson Dyna Super Glide Sport - FXDX
  • 1999 Harley-Davidson Dyna Super Glide Sport - FXDX
  • 2005 Harley-Davidson Dyna Super Glide Sport Injected - FXDX I
  • 2004 Harley-Davidson Dyna Super Glide Sport Injected - FXDX I
  • 2005 Harley-Davidson Dyna Wide Glide - FXDWG
  • 2004 Harley-Davidson Dyna Wide Glide - FXDWG
  • 2003 Harley-Davidson Dyna Wide Glide - FXDWG
  • 2002 Harley-Davidson Dyna Wide Glide - FXDWG
  • 2001 Harley-Davidson Dyna Wide Glide - FXDWG
  • 2000 Harley-Davidson Dyna Wide Glide - FXDWG
  • 1999 Harley-Davidson Dyna Wide Glide - FXDWG
  • 2006 Harley-Davidson Dyna Wide Glide Injected - FXDWG I
  • 2005 Harley-Davidson Dyna Wide Glide Injected - FXDWG I
  • 2004 Harley-Davidson Dyna Wide Glide Injected - FXDWG I
  • 2005 Harley-Davidson Electra Glide Classic - FLHTC
  • 2004 Harley-Davidson Electra Glide Classic - FLHTC
  • 2003 Harley-Davidson Electra Glide Classic - FLHTC
  • 2002 Harley-Davidson Electra Glide Classic - FLHTC
  • 2001 Harley-Davidson Electra Glide Classic - FLHTC
  • 2000 Harley-Davidson Electra Glide Classic - FLHTC
  • 1999 Harley-Davidson Electra Glide Classic - FLHTC
  • 2006 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2005 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2004 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2003 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2002 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2001 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2000 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 1999 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2006 Harley-Davidson Electra Glide Standard - FLHT
  • 2005 Harley-Davidson Electra Glide Standard - FLHT
  • 2004 Harley-Davidson Electra Glide Standard - FLHT
  • 2003 Harley-Davidson Electra Glide Standard - FLHT
  • 2002 Harley-Davidson Electra Glide Standard - FLHT
  • 2001 Harley-Davidson Electra Glide Standard - FLHT
  • 2000 Harley-Davidson Electra Glide Standard - FLHT
  • 1999 Harley-Davidson Electra Glide Standard - FLHT
  • 2006 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 2005 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 2004 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 2003 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 1999 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2006 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2005 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2004 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2003 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2002 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2001 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2000 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1999 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2006 Harley-Davidson Heritage Softail - FLST
  • 2006 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2005 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2004 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2003 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2002 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2001 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2000 Harley-Davidson Heritage Softail Classic - FLSTC
  • 2006 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2005 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2004 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2003 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2002 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2001 Harley-Davidson Heritage Softail Classic Injected - FLSTC I
  • 2006 Harley-Davidson Heritage Softail Injected - FLST I
  • 2003 Harley-Davidson Heritage Softail Springer - FLSTS
  • 2002 Harley-Davidson Heritage Softail Springer - FLSTS
  • 2001 Harley-Davidson Heritage Softail Springer - FLSTS
  • 2000 Harley-Davidson Heritage Softail Springer - FLSTS
  • 2003 Harley-Davidson Heritage Softail Springer Injected - FLSTS I
  • 2002 Harley-Davidson Heritage Softail Springer Injected - FLSTS I
  • 2001 Harley-Davidson Heritage Softail Springer Injected - FLSTS I
  • 2002 Harley-Davidson Road Glide - FLTR
  • 2001 Harley-Davidson Road Glide - FLTR
  • 2000 Harley-Davidson Road Glide - FLTR
  • 1999 Harley-Davidson Road Glide - FLTR
  • 2006 Harley-Davidson Road Glide Injected - FLTR I
  • 2005 Harley-Davidson Road Glide Injected - FLTR I
  • 2004 Harley-Davidson Road Glide Injected - FLTR I
  • 2003 Harley-Davidson Road Glide Injected - FLTR I
  • 2002 Harley-Davidson Road Glide Injected - FLTR I
  • 2001 Harley-Davidson Road Glide Injected - FLTR I
  • 2000 Harley-Davidson Road Glide Injected - FLTR I
  • 1999 Harley-Davidson Road Glide Injected - FLTR I
  • 2006 Harley-Davidson Road King - FLHR
  • 2005 Harley-Davidson Road King - FLHR
  • 2004 Harley-Davidson Road King - FLHR
  • 2003 Harley-Davidson Road King - FLHR
  • 2002 Harley-Davidson Road King - FLHR
  • 2001 Harley-Davidson Road King - FLHR
  • 2000 Harley-Davidson Road King - FLHR
  • 1999 Harley-Davidson Road King - FLHR
  • 2006 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2005 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2004 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2003 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2002 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2001 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2000 Harley-Davidson Road King Classic Injected - FLHRC I
  • 1999 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2006 Harley-Davidson Road King Custom - FLHRS
  • 2005 Harley-Davidson Road King Custom - FLHRS
  • 2004 Harley-Davidson Road King Custom - FLHRS
  • 2006 Harley-Davidson Road King Custom Injected - FLHRS I
  • 2005 Harley-Davidson Road King Custom Injected - FLHRS I
  • 2004 Harley-Davidson Road King Custom Injected - FLHRS I
  • 2006 Harley-Davidson Road King Injected - FLHR I
  • 2005 Harley-Davidson Road King Injected - FLHR I
  • 2004 Harley-Davidson Road King Injected - FLHR I
  • 2003 Harley-Davidson Road King Injected - FLHR I
  • 2002 Harley-Davidson Road King Injected - FLHR I
  • 2001 Harley-Davidson Road King Injected - FLHR I
  • 2000 Harley-Davidson Road King Injected - FLHR I
  • 1999 Harley-Davidson Road King Injected - FLHR I
  • 2006 Harley-Davidson Softail Deluxe - FLSTN
  • 2005 Harley-Davidson Softail Deluxe - FLSTN
  • 2006 Harley-Davidson Softail Deluxe Injected - FLSTN I
  • 2005 Harley-Davidson Softail Deluxe Injected - FLSTN I
  • 2006 Harley-Davidson Softail Deuce - FXSTD
  • 2005 Harley-Davidson Softail Deuce - FXSTD
  • 2004 Harley-Davidson Softail Deuce - FXSTD
  • 2003 Harley-Davidson Softail Deuce - FXSTD
  • 2002 Harley-Davidson Softail Deuce - FXSTD
  • 2001 Harley-Davidson Softail Deuce - FXSTD
  • 2000 Harley-Davidson Softail Deuce - FXSTD
  • 2006 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2005 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2004 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2003 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2002 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2001 Harley-Davidson Softail Deuce Injected - FXSTD I
  • 2006 Harley-Davidson Softail Fat Boy - FLSTF
  • 2005 Harley-Davidson Softail Fat Boy - FLSTF
  • 2004 Harley-Davidson Softail Fat Boy - FLSTF
  • 2003 Harley-Davidson Softail Fat Boy - FLSTF
  • 2002 Harley-Davidson Softail Fat Boy - FLSTF
  • 2001 Harley-Davidson Softail Fat Boy - FLSTF
  • 2000 Harley-Davidson Softail Fat Boy - FLSTF
  • 2006 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2005 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2004 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2003 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2002 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2001 Harley-Davidson Softail Fat Boy Injected - FLSTF I
  • 2006 Harley-Davidson Softail Night Train - FXSTB
  • 2005 Harley-Davidson Softail Night Train - FXSTB
  • 2004 Harley-Davidson Softail Night Train - FXSTB
  • 2003 Harley-Davidson Softail Night Train - FXSTB
  • 2002 Harley-Davidson Softail Night Train - FXSTB
  • 2001 Harley-Davidson Softail Night Train - FXSTB
  • 2000 Harley-Davidson Softail Night Train - FXSTB
  • 2006 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2005 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2004 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2003 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2002 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2001 Harley-Davidson Softail Night Train Injected - FXSTB I
  • 2006 Harley-Davidson Softail Springer - FXSTS
  • 2005 Harley-Davidson Softail Springer - FXSTS
  • 2004 Harley-Davidson Softail Springer - FXSTS
  • 2003 Harley-Davidson Softail Springer - FXSTS
  • 2002 Harley-Davidson Softail Springer - FXSTS
  • 2001 Harley-Davidson Softail Springer - FXSTS
  • 2000 Harley-Davidson Softail Springer - FXSTS
  • 2006 Harley-Davidson Softail Springer Classic - FLSTSC
  • 2005 Harley-Davidson Softail Springer Classic - FLSTSC
  • 2006 Harley-Davidson Softail Springer Classic Injected - FLSTSC I
  • 2005 Harley-Davidson Softail Springer Classic Injected - FLSTSC I
  • 2006 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2005 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2004 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2003 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2002 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2001 Harley-Davidson Softail Springer Injected - FXSTS I
  • 2006 Harley-Davidson Softail Standard - FXST
  • 2005 Harley-Davidson Softail Standard - FXST
  • 2004 Harley-Davidson Softail Standard - FXST
  • 2003 Harley-Davidson Softail Standard - FXST
  • 2002 Harley-Davidson Softail Standard - FXST
  • 2001 Harley-Davidson Softail Standard - FXST
  • 2000 Harley-Davidson Softail Standard - FXST
  • 2006 Harley-Davidson Softail Standard Injected - FXST I
  • 2005 Harley-Davidson Softail Standard Injected - FXST I
  • 2004 Harley-Davidson Softail Standard Injected - FXST I
  • 2003 Harley-Davidson Softail Standard Injected - FXST I
  • 2002 Harley-Davidson Softail Standard Injected - FXST I
  • 2001 Harley-Davidson Softail Standard Injected - FXST I
  • 2006 Harley-Davidson Street Bob Injected - FXDB I
  • 2006 Harley-Davidson Street Glide - FLHX
  • 2006 Harley-Davidson Street Glide Injected - FLHX I
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Instructions and Manuals for KB Performance Forged Piston Kit - 3.880 in. Bore - KB906

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