Replacement Piston Rings — Bore 3.437", Oversize +0.040"

HASTINGS Replacement Piston Rings — Bore 3.437", Oversize +0.040" – 41-47, 49-64, 70-80 Big Twin, 80 Touring, 86 Softail

HASTINGS
DS-750624
WG1254945|6482040

Complete replacement piston ring kit for two pistons, including top, second, and three-piece oil control rings. Made in USA.

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Replacement piston ring set engineered to restore compression and control oil for two pistons. 🔧

  • Includes top compression rings, second compression rings, and oil control rings.
  • Top compression rings are barrel face and cast coated to aid heat transfer between the piston and cylinder wall.
  • Second compression rings are reverse torsional taper face to promote side sealing and better oil economy.
  • Oil control rings are three-piece flex vent with two expanders and four steel rails for uniform pressure and positive oil control.
  • Two rings per groove, except for the rails where two rail rings match one expander; kit includes enough rings for two pistons.
  • Made in the USA.
: DS-750624
In Stock

Data sheet

Units
Set
Style
Replacement
Brand
HASTINGS
Bore - Oversize
+0.040"
Bore Size
3,437"
Ring Material
Cast

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Big Twin 1941
Harley Davidson Big Twin 1942
Harley Davidson Big Twin 1943
Harley Davidson Big Twin 1944
Harley Davidson Big Twin 1945
Harley Davidson Big Twin 1946
Harley Davidson Big Twin 1947
Harley Davidson Hydra Glide Big Twin 1949
Harley Davidson Hydra Glide Big Twin 1950
Harley Davidson Hydra Glide Big Twin 1951
Harley Davidson Hydra Glide Big Twin 1952
Harley Davidson Hydra Glide Big Twin 1953
Harley Davidson Hydra Glide Big Twin 1954
Harley Davidson Hydra Glide Big Twin 1955
Harley Davidson Hydra Glide Big Twin 1956
Harley Davidson Hydra Glide Big Twin 1957
Harley Davidson Duo Glide Big Twin 1958
Harley Davidson Duo Glide Big Twin 1959
Harley Davidson Duo Glide Big Twin 1960
Harley Davidson Duo Glide Big Twin 1961
Harley Davidson Duo Glide Big Twin 1962
Harley Davidson Duo Glide Big Twin 1963
Harley Davidson Duo Glide Big Twin 1964
Harley Davidson Electra Glide Big Twin 1970
Harley Davidson Electra Glide Big Twin 1971
Harley Davidson Electra Glide Big Twin 1972
Harley Davidson Electra Glide Big Twin 1973
Harley Davidson Electra Glide Big Twin 1974
Harley Davidson Electra Glide Big Twin 1975
Harley Davidson Electra Glide Big Twin 1976
Harley Davidson Electra Glide Big Twin 1977
Harley Davidson Duo Glide Big Twin 1958
Harley Davidson Duo Glide Big Twin 1959
Harley Davidson Duo Glide Big Twin 1960
Harley Davidson Duo Glide Big Twin 1961
Harley Davidson Duo Glide Big Twin 1962
Harley Davidson Duo Glide Big Twin 1963
Harley Davidson Duo Glide Big Twin 1964
Harley Davidson Electra Glide Big Twin 1970
Harley Davidson Electra Glide Big Twin 1971
Harley Davidson Electra Glide Big Twin 1972
Harley Davidson Electra Glide Big Twin 1973
Harley Davidson Electra Glide Big Twin 1974
Harley Davidson Electra Glide Big Twin 1975
Harley Davidson Electra Glide Big Twin 1976
Harley Davidson Electra Glide Big Twin 1977
Harley Davidson Electra Glide Big Twin 1978
Harley Davidson Electra Glide Big Twin 1979
Harley Davidson Electra Glide Big Twin 1980
Harley Davidson Electra Glide Sport Touring 1980
Harley Davidson Heritage Softail Softail 1986
Harley Davidson Super Glide Big Twin 1971
Harley Davidson Super Glide Big Twin 1972
Harley Davidson Super Glide Big Twin 1973
Harley Davidson Super Glide Big Twin 1974
Harley Davidson Super Glide Big Twin 1975
Harley Davidson Super Glide Big Twin 1976
Harley Davidson Super Glide Big Twin 1977
Harley Davidson Super Glide Big Twin 1978
Harley Davidson Super Glide Big Twin 1974
Harley Davidson Super Glide Big Twin 1975
Harley Davidson Super Glide Big Twin 1976
Harley Davidson Super Glide Big Twin 1977
Harley Davidson Super Glide Big Twin 1978
Harley Davidson Super Glide Big Twin 1979
Harley Davidson Super Glide Big Twin 1980
Harley Davidson Fat Bob Big Twin 1979
Harley Davidson Low Rider Big Twin 1977
Harley Davidson Low Rider Big Twin 1978
Harley Davidson Low Rider Big Twin 1979