Dennis Kirk Inc.
Legendary Service... Ask Your Friends - Since 1969
Need Assistance?
Over 150K Powersport Items - In-Stock and ready to ship today! View tires, apparel, helmets, exhaust and more!

KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio - KB292+20

  • Part #: H13215
  • Manufacturer Part #: KB292+20

MSRP Price: $231.95

Our Price: $219.99

You Save:
$11.96 (5%)
1 on Hand

Overview of KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio - KB292+20

  • 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 for KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio - KB292+20

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

Specs for KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio - KB292+20

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

Fitment for KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio - KB292+20

See if this part fits your ride

Part H13215 fits the following machines

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
4.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
0
2
0
0
0
Fit
5.0 / 5
Quality
5.0 / 5
Style
4.0 / 5
Value
4.0 / 5
Fit
5 / 5
Quality
5 / 5
Style
4 / 5
Value
4 / 5
The only pistons I use in my bikes
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
December 25, 2009
Fit
5 / 5
Quality
5 / 5
Style
4 / 5
Value
4 / 5
The only pistons I use in my bikes
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
December 25, 2009

Instructions and Manuals for KB Performance Piston Kit - 3.208 in. Bore/9:1 Ratio - KB292+20

You May Also Be Interested In