Replacement Piston — 3.498" diameter, 4.25" stroke, pair

Drag Specialties Replacement Piston — 3.498" diameter, 4.25" stroke, pair

Fits: Big Twin 1979-1984 · Touring 1980-1984 · FXR 1982-1984 · Police 1984

DRAG SPECIALTIES
DS-750720
750720-BX-LB1

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

Our price €102.85
RRP: €113.69RRP = manufacturer's recommended retail price
VAT included
Ships from our US warehouse · 20–25 days

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Description

Upgrade your rebuild with OEM-quality replacement pistons engineered for reliable performance.

Cast aluminum alloy construction provides strength and lightweight operation, and some fitments include a coating that reduces friction for cooler running and extended piston life.

  • Ideal for OEM replacement and economical performance
  • Kits include two pistons, wrist pins and clips; accept OEM or Hastings rings (sold separately)

Specifications

Bore Oversize Standard

Fitment

Model Years
Harley Davidson
FLH 1340 (Electra Glide Belt Drive) 1984
FLH 1340 (Electra Glide) 1979–1983
FLHC (Electra Glide Classic) 1979
FLHC 1340 (Electra Glide Classic) 1981–1983
FLHC 1340 (Electra Glide) 1980
FLHT 1340 (Electra Glide) 1983–1984
FLHTE 1340 (Electra Glide Classic) 1984
FLT 1340 (Tour Glide) 1980–1983
FLTC 1340 (Tour Glide Classic) 1980–1984
FXB 1340 (Sturgis) 1980–1982
FXDG 1340 1983–1984
FXE 1340 (Super Glide) 1981–1984
FXEF 1340 (Fat Bob) 1979–1982
FXR 1340 II (Super Glide II) 1982–1984
FXRDG 1340 (Disc Glide) 1984
FXRP 1340 (Sport Glide Police) 1984
FXRS 1340 (Low Glide) 1984
FXRS 1340 II (Super Glide II) 1982
FXRT 1340 (Sport Glide) 1984
FXS 1340 (Low Rider) 1979–1983
FXSB 1340 (Low Rider) 1984
FXWG 1340 (Wide Glide) 1980–1984

Part numbers

Manufacturer part number 750720-BX-LB1
: DS-750720
Ships from our US warehouse · 20–25 days

Data sheet

Units
Pair
Brand
DRAG SPECIALTIES
Bore - Oversize
Standard
Piston Material
Aluminum
Bore Size
3,498"
Piston Diameter
3,498"
3.498"
Stroke Length
4-1/4"
Compression Ratio
8.0:1
Model Family
FXR
Touring
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 Electra Glide Big Twin 1979
Harley Davidson Electra Glide Big Twin 1980
Harley Davidson Electra Glide Big Twin 1981
Harley Davidson Electra Glide Big Twin 1982
Harley Davidson Electra Glide Big Twin 1983
Harley Davidson Electra Glide Belt Drive Big Twin 1984
Harley Davidson Electra Glide Classic Big Twin 1979
Harley Davidson Electra Glide Big Twin 1980
Harley Davidson Electra Glide Classic Big Twin 1981
Harley Davidson Electra Glide Classic Big Twin 1982
Harley Davidson Electra Glide Classic Big Twin 1983
Harley Davidson Electra Glide Touring 1983
Harley Davidson Electra Glide Touring 1984
Harley Davidson Electra Glide Classic Touring 1984
Harley Davidson Tour Glide Touring 1980
Harley Davidson Tour Glide Touring 1981
Harley Davidson Tour Glide Touring 1982
Harley Davidson Tour Glide Touring 1983
Harley Davidson Tour Glide Classic Touring 1980
Harley Davidson Tour Glide Classic Touring 1981
Harley Davidson Tour Glide Classic Touring 1982
Harley Davidson Tour Glide Classic Touring 1983
Harley Davidson Tour Glide Classic Touring 1984
Harley Davidson Sturgis Big Twin 1980
Harley Davidson Sturgis Big Twin 1981
Harley Davidson Sturgis Big Twin 1982
Harley Davidson Big Twin 1983
Harley Davidson Big Twin 1984
Harley Davidson Super Glide Big Twin 1981
Harley Davidson Super Glide Big Twin 1982
Harley Davidson Super Glide Big Twin 1983
Harley Davidson Super Glide Big Twin 1984
Harley Davidson Fat Bob Big Twin 1979
Harley Davidson Fat Bob Big Twin 1980
Harley Davidson Fat Bob Big Twin 1981
Harley Davidson Fat Bob Big Twin 1982
Harley Davidson Super Glide II FXR 1982
Harley Davidson Super Glide II FXR 1983
Harley Davidson Super Glide II FXR 1984
Harley Davidson Disc Glide Big Twin 1984
Harley Davidson Sport Glide Police Police 1984
Harley Davidson Low Glide FXR 1984
Harley Davidson Super Glide II FXR 1982
Harley Davidson Sport Glide FXR 1984
Harley Davidson Low Rider Big Twin 1979
Harley Davidson Low Rider Big Twin 1980
Harley Davidson Low Rider Big Twin 1981
Harley Davidson Low Rider Big Twin 1982
Harley Davidson Low Rider Big Twin 1983
Harley Davidson Low Rider Big Twin 1984
Harley Davidson Wide Glide Big Twin 1980
Harley Davidson Wide Glide Big Twin 1981
Harley Davidson Wide Glide Big Twin 1982
Harley Davidson Wide Glide Big Twin 1983
Harley Davidson Wide Glide Big Twin 1984

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