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Product details
Check the 5.75-inch mounting centers before fitting this red Wilwood AeroDM front left brake caliper for Jeep Wrangler JL/Gladiator JT. The component is sold individually and uses 1.75/1.62/1.62-inch bores in its 1.25-inch rotor-width configuration. 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. 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-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 5.75 inches
- Mounting-hole diameter: 0.55 inches
- Hydraulic inlet thread: 1/8-27 NPT
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.
