Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The rotor and bracket determine whether this red Wilwood AeroDM front left brake caliper for GM 1500 Trucks/SUVs is the correct choice. Its 1.25-inch rotor-width configuration works with the lug mount and 6-piston layout detailed below. AeroDM is a forged six-piston caliper using a vehicle-specific direct lug mount. It is intended for the matching Wilwood rotor and conversion geometry, rather than the stock rotor by itself. Verify the package, side and lug offset before ordering a replacement. Wilwood Engineering, founded in 1977 by Bill Wood, is based in Camarillo, California. The company designs and manufactures disc braking equipment for motorsport, street-performance and specialized use. Calipers, rotors, master cylinders, valves, fittings and brake lines form a range whose individual components must be matched to one another.
Technical Details
- Manufacturer part number: 120-16826-RD
- Component: AeroDM Lug Mount; one individual caliper
- Placement: Front Left
- Construction and finish: Forged aluminum; Red Powder Coat
- Nominal rotor width: 1.25 inches
- Rotor width range: 1.10–1.28 inches
- Rotor diameter range: 12.19–13.38 inches
- Caliper weight reference: 8.7 lb
- Pistons: 6; stainless steel; bore dimensions 1.75/1.62/1.62 inches
- Hydraulic piston area: 6.52 square inches
- Dust boots: No
- Brake pad shape: 6617; shape number does not specify a friction compound
- Mounting interface: Lug; mounting centers 7.56 inches
- Mounting-hole diameter: 0.55 inches
- Hydraulic inlet thread: 1/8-27 NPT
Fitment & Compatibility
Replacement caliper for the matching Wilwood AeroDM front conversion on GM 1500 trucks and SUVs (2019–2021). Use the specified 13.38 × 1.25-inch Wilwood rotor and correct model-specific attachment geometry. The caliper is not a direct substitution over the stock rotor; confirm the installed kit and side.
Wilwood caliper specifications · Wilwood technical reference
Share the vehicle and the brake system actually installed with PMB Performance before ordering if the configuration is uncertain. We draw on over 20 years of parts and fitment experience when comparing the rotor, mount and caliper.
