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Drag Specialties High Compression Piston - 3.187 in. Bore/9:1 Ratio - DS-750750

  • Part #:
    H1370
  • Manufacturer Part #:
    DS-750750
Our Price: $29.95
Please select Bore Size
3 on Hand

Overview of Drag Specialties High Compression Piston - 3.187 in. Bore/9:1 Ratio - DS-750750

  • Keep the heart of your Harley pumping with these high-quality, cast aluminum pistons
  • Pistons come complete with wrist pins and keepers; rings are not included (we suggest using Hastings rings), choose either Part No. H1370R for chromoly top ring set or Part No. H1370RC for cast top ring set
  • Ratio 9:1
  • Sold each


  • 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 Drag Specialties High Compression Piston - 3.187 in. Bore/9:1 Ratio - DS-750750

Bore Size 3.187 in.
Compression Ratio 9:1
Type Piston w/o Ring Set
Units Each
Weight 2.31 lbs

Specs for Drag Specialties High Compression Piston - 3.187 in. Bore/9:1 Ratio - DS-750750

Bore Size 3.187 in.
Compression Ratio 9:1
Type Piston w/o Ring Set
Units Each
Weight 2.31 lbs

Fitment for Drag Specialties High Compression Piston - 3.187 in. Bore/9:1 Ratio - DS-750750

See if this part fits your ride

Part H1370 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
  • 1978 Harley-Davidson Sportster Cafe Racer - XLCR 1000
  • 1977 Harley-Davidson Sportster Cafe Racer - XLCR 1000
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Instructions and Manuals for Drag Specialties High Compression Piston - 3.187 in. Bore/9:1 Ratio - DS-750750

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