Wilwood Black GP310 Front Right Caliper for Harley-Davidson, Four 1.25-Inch Pistons

SKU: 120-12116-BK

$281.52 Sale
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Fitment questions?

Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.

Product details

This black GP310 is the right-hand front fork-mount caliper for selected Harley-Davidson brake arrangements. Four stainless pistons work in a billet aluminum body with 2.72-inch mounting centers. Camarillo, California is home to Wilwood Engineering, the disc brake company Bill Wood founded in 1977. Its design and manufacturing range spans calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized brake systems.

Technical Details

  • Manufacturer part number: 120-12116-BK. Component: GP310 Motorcycle Front (2008-UP) caliper.
  • Supply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.
  • Nominal rotor width 0.25 inch; compatible outside diameter from 9.00 through 11.80 inches. Specified rotor-width limits: 0.18–0.25 inch.
  • Construction and surface: billet aluminum housing finished in Black powder coat.
  • Caliper weight: approximately 2.1 lb.
  • Bore configuration 1.25 inches across 4 pistons; piston material: stainless steel. Hydraulic effective area: 2.46 square inches.
  • Bracket interface: 2.72-inch lug centers with -inch holes. Specified mount height: 2.40 inches; orientation: right hand.
  • Piston dust boots: not fitted.
  • Hydraulic inlet thread: 3/8-24. Use a fitting with the correct thread and sealing seat.
  • Pad fit is type 6208. Match the pad dimensions and compound to the rotor and intended braking conditions.

Fitment & Compatibility

Check the 2008-on fork geometry and exclude Springer applications. Match the rotor's dimensions and 6208 pad sweep, then verify the hydraulic line connection and wheel clearance.

Ask PMB Performance to check the complete brake arrangement before ordering. Our team brings over 20 years of experience; photographs and measured bracket and rotor dimensions make that check more useful.