Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The black Wilwood D154-DS is an individual brake caliper. It combines a 5.46-inch attachment span with 2.50-inch piston bore; confirm the rotor centerline and 1.04-inch width configuration before installation. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. Its disc brake design and manufacturing work includes master cylinders, valves, fittings and brake lines as well as rotors and calipers. The company serves motorsport, street-performance and specialized applications in which the entire brake system determines component choice. This D154-DS floating caliper uses a single 2.50-inch stainless piston with a dust wiper seal and D154-shape pads. It replaces the matching GM metric brake arrangement only after the slider, rotor and hose connection have been checked. It is not an axle kit.
Technical Details
- Manufacturer part number: 120-15796-BK
- Component: D154-Dust Seal Single Piston Floater; one individual caliper
- Placement: Universal mounting orientation; verify axle position
- Construction and finish: Forged aluminum; Black Powder Coat
- Nominal rotor width: 1.04 inches
- Rotor width range: 0.87–1.04 inches
- Rotor diameter range: 11.00–12.19 inches
- Caliper weight reference: 4.7 lb
- Pistons: 1; stainless steel; bore dimensions 2.50 inches
- Hydraulic piston area: 4.90 square inches
- Dust boots: Yes
- Brake pad shape: D154; shape number does not specify a friction compound
- Mounting interface: Floating; mounting centers 5.46 inches
- Mounting-hole diameter: 0.69 inches
- Mount height: 0.37 inches
- Hydraulic inlet thread: M10 x 1.50
Fitment & Compatibility
This caliper requires the measured 1.04-inch rotor-width configuration and the matching floating bracket on 5.46-inch centers. Axle placement is determined by the engineered brake package, not by a generic caliper designation. Confirm the M10 x 1.50 hydraulic inlet, pad outline and total piston area with the rest of the brake system before assembly.
Wilwood caliper specifications
With over 20 years of experience in parts and fitment, PMB Performance can help you compare the actual brake assembly. Include rotor width, mounting centers and the existing caliper details when requesting assistance.
