Engine Parts
Other Variations
Kb Piston 050 41-79 Fx/fl
Part # DS-751207
$239.95
NY: 0
National: 4
- —Manufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy
- —Allow a tighter fit and longer piston and ring life
- —Diamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch (.0005") tolerances from piston to piston
- —Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
- —Replacement piston rings and pin lock rings available separately
- —KB pistons can be installed tighter than other pistons. This results in less piston rock and better ring seal. Please read instructions included with piston for correct piston clearance.
- —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.
Calculated shipping at checkout
30-day returns on unused parts
Ships in 1–3 business days
Specifications
Displacement74"
Bore Size3.437"
Riding StyleStreet
Displacement1200 cc
Bore - Oversize+0.050"
Piston MaterialHypereutectic Alloy
Product NamePiston Kit
Compression Ratio9.0:1
UnitsKit
Weight2.75 lbs
Dimensions (L x W x H)9.6" x 4.64" x 4.64"
Fits These Vehicles (170)
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Electra Glide Sport FLHS1979
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1200 Low Rider FXS1979
1200 Electra Glide FLH1979
1200 Super Glide FX1979
FL1979
FLHC Electra Glide Classic1979
FXS Low Rider1979
FL1978
FLH Electra Glide1978
FX Super Glide1978
Electra Glide FL1978
1200 Electra Glide FLH1978
FXE Super Glide1978
FXS Low Rider1978
FLH Electra Glide1977
FX Super Glide1977
FXS Low Rider1977
FL1977
FXE Super Glide1977
Electra Glide FL1977
FL1976
FX Super Glide1976
Electra Glide FL1976
FLH Electra Glide1976
FXE Super Glide1976
Electra Glide FL1975
FL1975
FLH Electra Glide1975
FX Super Glide1975
FXE Super Glide1975
Electra Glide FL1974
FL1974
FXE Super Glide1974
FX Super Glide1974
FLH Electra Glide1974
FXE Super Glide1973
FLH Electra Glide1973
FX Super Glide1973
Electra Glide FL1973
FL1973
FLHF1972
FL1972
FLH Electra Glide1972
FX Super Glide1972
Electra Glide FL1972
FX Super Glide1971
FL1971
FLHF1971
Electra Glide FL1971
FLH Electra Glide1971
Electra Glide FL1970
FLHF1970
FL1970
FLH Electra Glide1970
FL1969
FLHFB1969
1200 Electra Glide FLH1969
Electra Glide FL1969
FLFB1969
FLHB1969
FLHB1968
FLHFB1968
1200 Electra Glide FLH1968
FL1968
FLFB1968
Electra Glide FL1968
1200 Electra Glide FLH1967
Electra Glide FL1967
FL1967
FLFB1967
FLHFB1967
FLHB1967
1200 Electra Glide FLH1966
FLHFB1966
FL1966
FLHB1966
Electra Glide FL1966
FLFB1966
1200 Electra Glide FLH1965
FLHFB1965
FLFB1965
FL1965
Electra Glide FL1965
FLHB1965
FL1964
Duo Glide FL1964
FLH Duo-Glide1964
FLF1964
FLHF1964
FLH Duo-Glide1963
FL1963
FLF1963
Duo Glide FL1963
FLHF1963
FL1962
FLH Duo-Glide1962
FLHF1962
Duo Glide FL1962
FLF1962
FLH Duo-Glide1961
FLHF1961
FL1961
FLF1961
Duo Glide FL1961
FL1960
FLF1960
FLHF1960
Duo Glide FL1960
FLH Duo-Glide1960
FLF1959
FL1959
FLH Duo-Glide1959
Duo Glide FL1959
FLHF1959
Duo Glide FL1958
FLHF1958
FLF1958
FLH Duo-Glide1958
FL1958
FLHF1957
Hydra Glide FL1957
FL1957
FLF1957
FLH Hydra-Glide1957
FL1956
FLF1956
FLHF1956
FLH Hydra-Glide1956
Hydra Glide FL1956
Hydra Glide FL1955
FL1955
FLF1955
FLHF1955
FLH Hydra-Glide1955
FLF1954
FL1954
Hydra Glide FL1954
Hydra Glide FL1953
FLF1953
FL1953
Hydra Glide FL1952
FL1952
FL1951
Hydra Glide FL1951
FL1950
Hydra Glide FL1950
Hydra Glide FL1949
FL1949
FL1948
FL1947
Knucklehead FL1947
FL1946
Knucklehead FL1946
FL1945
Knucklehead FL1945
Knucklehead FL1944
FL1944
FL1943
Knucklehead FL1943
FL1942
Knucklehead FL1942
FL1941
Knucklehead FL1941
Not sure it fits? Call our Harley techs at 607-654-7431.
