Wilwood Black D154 Caliper, 0.81-Inch Rotor-Width Channel / 1.62-Inch Stainless Bores

This black D154 has two 1.62-inch stainless bores and a nominal 0.81-inch rotor-width channel. The smaller rotor opening distinguishes it from the same-area 1.04-inch-width version. With a range spanning calipers, brake rotors, master cylinders, valves, fittings and brake lines, Wilwood Engineering designs and manufactures complete disc braking systems and their components. Bill Wood founded the Camarillo, California-based company in 1977 for a market now covering motorsport, street-performance and specialized applications.

Technical Details

• Manufacturer part number: 120-11873-BK. Component: D154 Single & Dual Piston Floater caliper.
• Supply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.
• Piston dust boots: not fitted.
• Pistons: 2 stainless steel; bore specification: 1.62 inches. Effective piston area: 4.12 sq in.
• Compatible brake pad shape: D154; choose the required compound for the brake system.
• Rotor compatibility: nominal width 0.81 inch; diameter 11.00–12.19 inches. Specified rotor-width limits: 0.70–0.81 inch.
• Caliper weight: approximately 4.6 lb.
• Mounting: floating, 5.46-inch centers; universal orientation. Mount holes: 0.69 inch; height: 0.37 inches.
• Body: forged aluminum; finish: Black powder coat.
• Hydraulic inlet thread: M10 x 1.50. Use a fitting with the correct thread and sealing seat.

Fitment & Compatibility

Match the 4.12-square-inch hydraulic area and the rotor's centerline together. Verify 5.46-inch slide-pin spacing, adequate sliding travel and the M10 x 1.50 inlet connection.

PMB Performance brings more than 20 years of experience to brake-part selection. Include the existing caliper, rotor and mounting details when requesting help with this assembly.