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KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio

  • Part #: H13215
  • Manufacturer Part #: KB292
  • MSRP Price: $231.95
  • Our Price: $219.99
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H13215
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Overview of KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio

  • 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. H1372RC(enough for two pistons)
  • Replacement spiro-lock pin clips Part no. 148980 (4pk)
  • Made in the U.S.A.


  • Available Sizes:
    + .010 in. - Part No. H13223
    + .020 in. - Part No. H13215
    + .030 in. - Part No. H13218
    + .040 in. - Part No. H13229

    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 3.208 in.
Compression Ratio 9:1
Type Piston Kit
Units Each
Weight 2.75 lbs

Specs for KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio

Bore Size 3.208 in.
Compression Ratio 9:1
Type Piston Kit
Units Each
Weight 2.75 lbs

Fitment for KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio

Part H13215 fits the following machines

See if this part fits your ride

Harley-Davidson
1985 Harley-Davidson Roadster - XLS
1984 Harley-Davidson Roadster - XLS
1983 Harley-Davidson Roadster - XLS
1982 Harley-Davidson Roadster - XLS
1981 Harley-Davidson Roadster - XLS
1980 Harley-Davidson Roadster - XLS
1979 Harley-Davidson Roadster - XLS
1979 Harley-Davidson Sportster - XLCH 1000
1978 Harley-Davidson Sportster - XLCH 1000
1977 Harley-Davidson Sportster - XLCH 1000
1976 Harley-Davidson Sportster - XLCH 1000
1975 Harley-Davidson Sportster - XLCH 1000
1974 Harley-Davidson Sportster - XLCH 1000
1973 Harley-Davidson Sportster - XLCH 1000
1972 Harley-Davidson Sportster - XLCH 1000
1985 Harley-Davidson Sportster - XLH 1000
1984 Harley-Davidson Sportster - XLH 1000
1983 Harley-Davidson Sportster - XLH 1000
1982 Harley-Davidson Sportster - XLH 1000
1981 Harley-Davidson Sportster - XLH 1000
1980 Harley-Davidson Sportster - XLH 1000
1979 Harley-Davidson Sportster - XLH 1000
1978 Harley-Davidson Sportster - XLH 1000
1977 Harley-Davidson Sportster - XLH 1000
1976 Harley-Davidson Sportster - XLH 1000
1975 Harley-Davidson Sportster - XLH 1000
1974 Harley-Davidson Sportster - XLH 1000
1973 Harley-Davidson Sportster - XLH 1000
1972 Harley-Davidson Sportster - XLH 1000
1978 Harley-Davidson Sportster - XLT
1977 Harley-Davidson Sportster - XLT
1985 Harley-Davidson Sportster - XLX 1000
1984 Harley-Davidson Sportster - XLX 1000
1983 Harley-Davidson Sportster - XLX 1000
1985 Harley-Davidson Sportster - XR 1000
1984 Harley-Davidson Sportster - XR 1000
1983 Harley-Davidson Sportster - XR 1000
1978 Harley-Davidson Sportster Cafe Racer - XLCR 1000
1977 Harley-Davidson Sportster Cafe Racer - XLCR 1000

Reviews for KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio

out of 1 reviews.

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

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The only pistons I use in my bikes

December 26, 2009

Six years ago when doing the top end on my shovel I installed KB pistons and was vary impressed with them. They run quiet and seal up better than the forged pistons I had been running. This time I installed them in my early 84 XLS iron head sportster.The engine is pumped-R-5 cams,heads ported,NO2 with a beull fuel injection system and power commander.The KB pistons shape and construction has aloud me to run single plugs again with out detonation problems that I was dealing with,with the forged pistons.They handle the Nitrous with no problem and are quiet even at start up. The pistons Keith Black makes now adays are not the KB of old they have improved 10 fold to old. thanks Scary

I would recommend this item to a friend.
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By: from Foresthill Ca.

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Instructions and Media for KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio

Instructions - PDF Instructions - PDF Instructional PDF
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