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KB Performance Piston Kit - 3.538 in. Bore/9.5:1 Ratio - KB305040

  • Part #: 1316514
  • Manufacturer Part #: KB305040
  • MSRP Price: $209.95
  • Our Price: $198.99
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1316514
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Overview of KB Performance Piston Kit - 3.538 in. Bore/9.5:1 Ratio - KB305040

  • Originally designed by Keith Black, these pistons provide a tighter fit and longer piston and ring life
  • Made from high-strength T6 heat-treated, 390 hypereutectic alloy, then diamond-machined and held to plus or minus one gram weight and less than one-half-thousandth-inch (.0005 in.) tolerances from piston to piston
  • Each kit contains two pistons, pins, spiro-lock pin clips and Hastings moly rings
  • Replacement rings also available separately Part no. H1314R (enough for two pistons)
  • Replacement spiro-lock pin clips Part no. 148980 (4pk)
  • Made in the U.S.A.


  • Available Sizes:
    3.498 in./Standard - Part No. H13214
    3.503/+ .005 in. - Part No. H13205
    3.508/+ .010 in. - Part No. H13204
    3.518/+ .020 in. - Part No. H13217
    3.528/+ .030 in. - Part No. H13257
    3.538/+ .040 in. - Part No. 1316514

    Replacement Rings:
    3.498 in./Standard - Part No. H1310R
    3.503/+ .005 in. - Part No. H1318R
    3.508/+ .010 in. - Part No. H1311R
    3.518/+ .020 in. - Part No. H1312R
    3.528/+ .030 in. - Part No. H1313R
    3.538/+ .040 in. - Part No. H1314R

NOTE: KB pistons can be installed tighter than other pistons. This results in less piston rock and better ring seal. Please read instructions furnished with piston for correct piston clearance.

NOTE: Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.

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

Bore Size 3.538 in.
Compression Ratio 9.5:1
Type Piston Kit
Units Each
Weight 2.8 lbs

Specs for KB Performance Piston Kit - 3.538 in. Bore/9.5:1 Ratio - KB305040

Bore Size 3.538 in.
Compression Ratio 9.5:1
Type Piston Kit
Units Each
Weight 2.8 lbs

Fitment for KB Performance Piston Kit - 3.538 in. Bore/9.5:1 Ratio - KB305040

Part 1316514 fits the following machines

See if this part fits your ride

Harley-Davidson
1984 Harley-Davidson Disc Glide - FXRDG
1998 Harley-Davidson Dyna Convertible - FXDS-CONV
1997 Harley-Davidson Dyna Convertible - FXDS-CONV
1996 Harley-Davidson Dyna Convertible - FXDS-CONV
1995 Harley-Davidson Dyna Convertible - FXDS-CONV
1992 Harley-Davidson Dyna Daytona - FXDB
1992 Harley-Davidson Dyna Glide Custom - FXDC
1998 Harley-Davidson Dyna Low Rider - FXDL
1997 Harley-Davidson Dyna Low Rider - FXDL
1996 Harley-Davidson Dyna Low Rider - FXDL
1995 Harley-Davidson Dyna Low Rider - FXDL
1994 Harley-Davidson Dyna Low Rider - FXDL
1993 Harley-Davidson Dyna Low Rider - FXDL
1994 Harley-Davidson Dyna Low Rider Convertible - FXDS-CONV
1991 Harley-Davidson Dyna Sturgis - FXDB
1998 Harley-Davidson Dyna Super Glide - FXD
1997 Harley-Davidson Dyna Super Glide - FXD
1996 Harley-Davidson Dyna Super Glide - FXD
1995 Harley-Davidson Dyna Super Glide - FXD
1998 Harley-Davidson Dyna Wide Glide - FXDWG
1997 Harley-Davidson Dyna Wide Glide - FXDWG
1996 Harley-Davidson Dyna Wide Glide - FXDWG
1995 Harley-Davidson Dyna Wide Glide - FXDWG
1994 Harley-Davidson Dyna Wide Glide - FXDWG
1993 Harley-Davidson Dyna Wide Glide - FXDWG
1987 Harley-Davidson Electra Glide - FLHT
1986 Harley-Davidson Electra Glide - FLHT
1985 Harley-Davidson Electra Glide - FLHT
1998 Harley-Davidson Electra Glide Classic - FLHTC
1997 Harley-Davidson Electra Glide Classic - FLHTC
1996 Harley-Davidson Electra Glide Classic - FLHTC
1995 Harley-Davidson Electra Glide Classic - FLHTC
1994 Harley-Davidson Electra Glide Classic - FLHTC
1993 Harley-Davidson Electra Glide Classic - FLHTC
1992 Harley-Davidson Electra Glide Classic - FLHTC
1991 Harley-Davidson Electra Glide Classic - FLHTC
1990 Harley-Davidson Electra Glide Classic - FLHTC
1989 Harley-Davidson Electra Glide Classic - FLHTC
1988 Harley-Davidson Electra Glide Classic - FLHTC
1987 Harley-Davidson Electra Glide Classic - FLHTC
1986 Harley-Davidson Electra Glide Classic - FLHTC
1985 Harley-Davidson Electra Glide Classic - FLHTC
1984 Harley-Davidson Electra Glide Classic - FLHTC
1998 Harley-Davidson Electra Glide Classic Injected - FLHTC I
1997 Harley-Davidson Electra Glide Classic Injected - FLHTC I
1996 Harley-Davidson Electra Glide Classic Injected - FLHTC I
1993 Harley-Davidson Electra Glide Sport - FLHS
1992 Harley-Davidson Electra Glide Sport - FLHS
1991 Harley-Davidson Electra Glide Sport - FLHS
1990 Harley-Davidson Electra Glide Sport - FLHS
1989 Harley-Davidson Electra Glide Sport - FLHS
1988 Harley-Davidson Electra Glide Sport - FLHS
1987 Harley-Davidson Electra Glide Sport - FLHS
1998 Harley-Davidson Electra Glide Standard - FLHT
1997 Harley-Davidson Electra Glide Standard - FLHT
1996 Harley-Davidson Electra Glide Standard - FLHT
1995 Harley-Davidson Electra Glide Standard - FLHT
1989 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
1998 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
1997 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
1996 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
1995 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
1999 Harley-Davidson FXR 2
1999 Harley-Davidson FXR 3
1989 Harley-Davidson Heritage Softail - FLST
1988 Harley-Davidson Heritage Softail - FLST
1987 Harley-Davidson Heritage Softail - FLST
1986 Harley-Davidson Heritage Softail - FLST
1999 Harley-Davidson Heritage Softail Classic - FLSTC
1998 Harley-Davidson Heritage Softail Classic - FLSTC
1997 Harley-Davidson Heritage Softail Classic - FLSTC
1996 Harley-Davidson Heritage Softail Classic - FLSTC
1995 Harley-Davidson Heritage Softail Classic - FLSTC
1994 Harley-Davidson Heritage Softail Classic - FLSTC
1993 Harley-Davidson Heritage Softail Classic - FLSTC
1992 Harley-Davidson Heritage Softail Classic - FLSTC
1991 Harley-Davidson Heritage Softail Classic - FLSTC
1990 Harley-Davidson Heritage Softail Classic - FLSTC
1989 Harley-Davidson Heritage Softail Classic - FLSTC
1988 Harley-Davidson Heritage Softail Classic - FLSTC
1993 Harley-Davidson Heritage Softail Nostalgia - FLSTN
1996 Harley-Davidson Heritage Softail Special - FLSTN
1995 Harley-Davidson Heritage Softail Special - FLSTN
1994 Harley-Davidson Heritage Softail Special - FLSTN
1999 Harley-Davidson Heritage Softail Springer - FLSTS
1998 Harley-Davidson Heritage Softail Springer - FLSTS
1997 Harley-Davidson Heritage Softail Springer - FLSTS
1985 Harley-Davidson Low Glide - FXRS
1984 Harley-Davidson Low Glide - FXRS
1985 Harley-Davidson Low Glide Custom - FXRC
1992 Harley-Davidson Low Rider - FXRS
1991 Harley-Davidson Low Rider - FXRS
1990 Harley-Davidson Low Rider - FXRS
1989 Harley-Davidson Low Rider - FXRS
1988 Harley-Davidson Low Rider - FXRS
1987 Harley-Davidson Low Rider - FXRS
1986 Harley-Davidson Low Rider - FXRS
1985 Harley-Davidson Low Rider - FXSB
1987 Harley-Davidson Low Rider Chrome - FXRC
1993 Harley-Davidson Low Rider Convertible - FXRS-CONV
1992 Harley-Davidson Low Rider Convertible - FXRS-CONV
1991 Harley-Davidson Low Rider Convertible - FXRS-CONV
1990 Harley-Davidson Low Rider Convertible - FXRS-CONV
1994 Harley-Davidson Low Rider Custom - FXLR
1993 Harley-Davidson Low Rider Custom - FXLR
1992 Harley-Davidson Low Rider Custom - FXLR
1991 Harley-Davidson Low Rider Custom - FXLR
1990 Harley-Davidson Low Rider Custom - FXLR
1993 Harley-Davidson Low Rider Sport - FXRS-SP
1992 Harley-Davidson Low Rider Sport - FXRS-SP
1991 Harley-Davidson Low Rider Sport - FXRS-SP
1990 Harley-Davidson Low Rider Sport - FXRS-SP
1989 Harley-Davidson Low Rider Sport - FXRS-SP
1988 Harley-Davidson Low Rider Sport - FXRS-SP
1987 Harley-Davidson Low Rider Sport - FXRS-SP
1986 Harley-Davidson Low Rider Sport - FXRS-SP
1998 Harley-Davidson Road Glide - FLTR
1998 Harley-Davidson Road Glide Injected - FLTR I
1998 Harley-Davidson Road King - FLHR
1997 Harley-Davidson Road King - FLHR
1996 Harley-Davidson Road King - FLHR
1995 Harley-Davidson Road King - FLHR
1994 Harley-Davidson Road King - FLHR
1998 Harley-Davidson Road King Classic Injected - FLHRC I
1998 Harley-Davidson Road King Injected - FLHR I
1997 Harley-Davidson Road King Injected - FLHR I
1996 Harley-Davidson Road King Injected - FLHR I
1990 Harley-Davidson Softail - FXST
1989 Harley-Davidson Softail - FXST
1988 Harley-Davidson Softail - FXST
1987 Harley-Davidson Softail - FXST
1986 Harley-Davidson Softail - FXST
1985 Harley-Davidson Softail - FXST
1984 Harley-Davidson Softail - FXST
1999 Harley-Davidson Softail Custom - FXSTC
1998 Harley-Davidson Softail Custom - FXSTC
1997 Harley-Davidson Softail Custom - FXSTC
1996 Harley-Davidson Softail Custom - FXSTC
1995 Harley-Davidson Softail Custom - FXSTC
1994 Harley-Davidson Softail Custom - FXSTC
1993 Harley-Davidson Softail Custom - FXSTC
1992 Harley-Davidson Softail Custom - FXSTC
1991 Harley-Davidson Softail Custom - FXSTC
1990 Harley-Davidson Softail Custom - FXSTC
1999 Harley-Davidson Softail Fat Boy - FLSTF
1998 Harley-Davidson Softail Fat Boy - FLSTF
1997 Harley-Davidson Softail Fat Boy - FLSTF
1996 Harley-Davidson Softail Fat Boy - FLSTF
1995 Harley-Davidson Softail Fat Boy - FLSTF
1994 Harley-Davidson Softail Fat Boy - FLSTF
1993 Harley-Davidson Softail Fat Boy - FLSTF
1992 Harley-Davidson Softail Fat Boy - FLSTF
1991 Harley-Davidson Softail Fat Boy - FLSTF
1990 Harley-Davidson Softail Fat Boy - FLSTF
1999 Harley-Davidson Softail Night Train - FXSTB
1999 Harley-Davidson Softail Springer - FXSTS
1998 Harley-Davidson Softail Springer - FXSTS
1997 Harley-Davidson Softail Springer - FXSTS
1996 Harley-Davidson Softail Springer - FXSTS
1995 Harley-Davidson Softail Springer - FXSTS
1994 Harley-Davidson Softail Springer - FXSTS
1993 Harley-Davidson Softail Springer - FXSTS
1992 Harley-Davidson Softail Springer - FXSTS
1991 Harley-Davidson Softail Springer - FXSTS
1990 Harley-Davidson Softail Springer - FXSTS
1989 Harley-Davidson Softail Springer - FXSTS
1988 Harley-Davidson Softail Springer - FXSTS
1997 Harley-Davidson Softail Springer Bad Boy - FXSTSB
1996 Harley-Davidson Softail Springer Bad Boy - FXSTSB
1995 Harley-Davidson Softail Springer Bad Boy - FXSTSB
1999 Harley-Davidson Softail Standard - FXST
1984 Harley-Davidson Sport Glide - FXRT
1986 Harley-Davidson Sport Glide Grand Touring - FXRD
1994 Harley-Davidson Super Glide - FXR
1993 Harley-Davidson Super Glide - FXR
1992 Harley-Davidson Super Glide - FXR
1991 Harley-Davidson Super Glide - FXR
1990 Harley-Davidson Super Glide - FXR
1989 Harley-Davidson Super Glide - FXR
1988 Harley-Davidson Super Glide - FXR
1987 Harley-Davidson Super Glide - FXR
1986 Harley-Davidson Super Glide - FXR
1985 Harley-Davidson Super Glide Fat Bob - FXEF
1991 Harley-Davidson Tour Glide Classic - FLTC
1990 Harley-Davidson Tour Glide Classic - FLTC
1995 Harley-Davidson Tour Glide Ultra Classic - FLTCU
1994 Harley-Davidson Tour Glide Ultra Classic - FLTCU
1993 Harley-Davidson Tour Glide Ultra Classic - FLTCU
1992 Harley-Davidson Tour Glide Ultra Classic - FLTCU
1991 Harley-Davidson Tour Glide Ultra Classic - FLTCU
1990 Harley-Davidson Tour Glide Ultra Classic - FLTCU
1989 Harley-Davidson Tour Glide Ultra Classic - FLTCU
1996 Harley-Davidson Tour Glide Ultra Classic Injected - FLTCU I
1986 Harley-Davidson Wide Glide - FXWG
1985 Harley-Davidson Wide Glide - FXWG

Reviews for KB Performance Piston Kit - 3.538 in. Bore/9.5:1 Ratio - KB305040

out of 1 reviews.

1 out of 1 (100%) customers would recommend this to a friend.

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Good bang for buck.

July 8, 2013

Good kit for the money. Only real complaint is Keith Black piston pin retainer clips (spiral clips) are a pain in the butt to install compared to regular circlips! Once you get all 4 in though, you are a champ at it! One thing to note is, these pistons run tighter ad are slightly larger then stock by design. I order STD. Size to replace my stock ones, brought it to machine shop to be honed, and they did have to shave .001 off cylinder for them to fit correctly.

I would recommend this item to a friend.
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By: from Northern Minnesota

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Instructions and Media for KB Performance Piston Kit - 3.538 in. Bore/9.5:1 Ratio - KB305040

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