Made in USA
GP 310 4 Piston Motorcycle Rear Brake Caliper 1984-up Harley Davidson
InfoVehicle Info Needed
WILWOODPART NUMBER: 950-120-7740-RD

GP 310 4 Piston Motorcycle Rear Brake Caliper 1984-up Harley Davidson

$27200
ShippingShips on Sep 04, 2026
Lowest PriceLowest Price Guarantee

GP 310 Rear Disc Brake Caliper
  • 0.25'' Brake Disc Width
    • GP 310 4 Piston Motorcycle Rear Brake Caliper
    • 1984-up Harley Davidson
    • 1.25'' / 1.25'' Piston Bores
    • 11.5'' Rotor Dia.
    • 0.25'' Disc Width
    • Right Hand, Standard 3.50'' Mount Spacing
    • Red Finish


      Vehicle Applications
      Driving EnviromentVehicle Sub-TypesApplication Duty
      Motorcycle Heavy Duty
      PowersportsATV, SnowmobilesMedium Duty


      Product Specifications
      Rotor Compatibility
      Rotor Width:0.25'
      Maximum Rotor Width:0.25'
      Minimum Rotor Width:0.18'
      Maximum Rotor Diameter:11.5'
      Minimum Rotor Diameter:9.0'
      Brake Pad Specifications
      Brake Pad Type 1:6208
      Brake Pad Type 2:N/A
      Brake Pad Type 3:N/A
      Total Pad Area (in/sq):3.65'
      Total Pad Volume (in/sq):0.63'
      Piston Specifications
      Piston 1 Bore:1.25'
      Piston 2 Bore:1.25'
      Piston 3 Bore:N/A
      Piston 4 Bore:N/A
      Total Piston Area (in/sq):2.46'
      Mounting Specifications
      Mount Type:Lug
      Mount Side:Right Hand, Standard 3.50' Mount Spacing
      Mount Center:3.50'
      Mount Hole Size:0.39'
      Mount Height:1.55'
    Part TypeBrake Caliper
    BrandWILWOOD
    Package Height3.38
    Package Width4.44
    Package Length6.75
    Weight2.0 PG
    Part CategoryPerformance Parts
    Piston Diameter1.25 in (31.8 mm)
    Part FitmentSemi Universal
    Rotor Thickness0.25 in (6.4 mm)
    Vendor Part Number120-7740-RD
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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