Replacement Piston — Bore 3.437 in, Oversize +0.070 in, Stroke 3-31/32 in

Drag Specialties Replacement Piston — Bore 3.437 in, Oversize +0.070 in, Stroke 3-31/32 in

Fits: Big Twin 1941-1972, 1979

DRAG SPECIALTIES
DS-750707
750707-BX-LB1

OEM-quality cast aluminum; kits include two pistons, wrist pins and clips. Accepts OEM or Hastings rings (sold separately).

Our price €99.22
RRP: €110.03RRP = manufacturer's recommended retail price
VAT included
Ships from our US warehouse · 20–25 days

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Description

OEM quality cast aluminum alloy construction provides reliable performance and long service life.

Some fitments feature pistons with a coating that extends piston life, reduces friction and helps engines run cooler.

Ideal for OEM replacement and economical with great performance — kits include two pistons, wrist pins and clips. Accepts OEM or Hastings rings (order separately).

Specifications

Bore Oversize +0.070"

Fitment

Model Years
Harley Davidson
F 1200 1946–1948
F 1200 (Hydra Glide) 1949–1952
FL 1200 1941–1948
FL 1200 (Duo Glide) 1958–1964
FL 1200 (Electra Glide) 1970–1972
FL 1200 (Hydra Glide) 1949–1957
FLB 1200 (Electra Glide) 1965–1969
FLE 1200 (Hydra Glide) 1953–1956
FLEF 1200 (Hydra Glide) 1953–1956
FLF 1200 (Duo Glide) 1958–1964
FLF 1200 (Hydra Glide) 1952–1957
FLFB 1200 (Electra Glide) 1965–1969
FLH 1200 (Duo Glide) 1958–1964
FLH 1200 (Electra Glide) 1970–1971
FLH 1200 (Hydra Glide) 1955–1957
FLHB 1200 (Electra Glide) 1965–1969
FLHF 1200 (Duo Glide) 1958–1964
FLHF 1200 (Hydra Glide) 1955–1957
FLHFB 1200 (Electra Glide) 1965–1969
FX 1200 (Super Glide) 1971–1972, 1979

Part numbers

Manufacturer part number 750707-BX-LB1
: DS-750707
Ships from our US warehouse · 20–25 days

Data sheet

Units
Pair
Brand
DRAG SPECIALTIES
Bore - Oversize
+0.070"
Piston Material
Aluminum
Bore Size
3,437"
Piston Diameter
3,507"
3.507"
Stroke Length
3-31/32"
Compression Ratio
8.5:1
Model Family
Vintage Big Twin

Vehicle Fitments

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 1946
Harley Davidson Big Twin 1947
Harley Davidson Big Twin 1948
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 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 Big Twin 1948
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 1965
Harley Davidson Electra Glide Big Twin 1966
Harley Davidson Electra Glide Big Twin 1967
Harley Davidson Electra Glide Big Twin 1968
Harley Davidson Electra Glide Big Twin 1969
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 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 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 1965
Harley Davidson Electra Glide Big Twin 1966
Harley Davidson Electra Glide Big Twin 1967
Harley Davidson Electra Glide Big Twin 1968
Harley Davidson Electra Glide Big Twin 1969
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 1965
Harley Davidson Electra Glide Big Twin 1966
Harley Davidson Electra Glide Big Twin 1967
Harley Davidson Electra Glide Big Twin 1968
Harley Davidson Electra Glide Big Twin 1969
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 1965
Harley Davidson Electra Glide Big Twin 1966
Harley Davidson Electra Glide Big Twin 1967
Harley Davidson Electra Glide Big Twin 1968
Harley Davidson Electra Glide Big Twin 1969
Harley Davidson Super Glide Big Twin 1971
Harley Davidson Super Glide Big Twin 1972
Harley Davidson Super Glide Big Twin 1979

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