Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
With 6 pistons and 1.75/1.62/1.62-inch bore dimensions, the black Wilwood AeroDM front left brake caliper for Jeep Wrangler JL/Gladiator JT must be matched to the brake system rather than selected by finish alone. Its 1.25-inch rotor-width specification is separate from rotor diameter. Based in Camarillo, California, Wilwood Engineering has its origins in the company Bill Wood founded in 1977. Its designs and manufactured disc brake products cover calipers and rotors alongside master cylinders, valves, fittings and lines. Motorsport, street-performance and specialized installations each require components selected for the complete system. 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.
Technical Details
- Manufacturer part number: 120-16957-BK
- Component: AeroDM Lug Mount; one individual caliper
- Placement: Front Left
- Construction and finish: Forged aluminum; Black Powder Coat
- Mounting interface: Lug; mounting centers 5.75 inches
- Mounting-hole diameter: 0.55 inches
- Hydraulic inlet thread: 1/8-27 NPT
- 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
Fitment & Compatibility
For the matching Wilwood AeroDM front conversion on Jeep Wrangler JL and Gladiator JT. Wilwood DS1550 identifies the 2018–2025 JL/JT platform range; verify the actual model year and Wilwood kit. Use the specified 13.38 × 1.25-inch-wide rotor and 5.75-inch lug arrangement; this caliper is not the JK bore configuration.
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.
