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Product details
A 1.25-inch rotor-width specification and 1.75/1.62/1.62-inch piston bores identify this front left Wilwood AeroDM brake caliper for Jeep Wrangler JL/Gladiator JT. The anodized finish is applied to the exact component described below; match the mounting bracket before replacement. Founded by Bill Wood in 1977, Wilwood Engineering is based in Camarillo, California. It designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized applications. Components must be selected to suit the complete brake 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
- Component: AeroDM Lug Mount; one individual caliper
- Placement: Front Left
- Construction and finish: Forged aluminum; Type III Anodize
- 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 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
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.
