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Product details
The 5.04-inch lug attachment distinguishes this front left Wilwood AeroDM brake caliper for Toyota 4Runner. This individual anodized unit is built for the 1.25-inch-wide rotor configuration and requires accurate alignment with the mating rotor and bracket. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are among the disc brake components designed and manufactured by Wilwood Engineering. Bill Wood founded the company in 1977; it is based in Camarillo, California. The range serves motorsport, street-performance and specialized systems, with component selection determined by the full brake arrangement. 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: 120-16970
- Component: AeroDM Lug Mount; one individual caliper
- Placement: Front Left
- Construction and finish: Forged aluminum; Type III Anodize
- 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: 8.9 lb
- Pistons: 6; stainless steel; bore dimensions 1.75/1.50/1.50 inches
- Hydraulic piston area: 5.94 square inches
- Dust boots: No
- Brake pad shape: 6617; shape number does not specify a friction compound
- Mounting interface: Lug; mounting centers 5.04 inches
- Mounting-hole diameter: 0.59 inches
- Hydraulic inlet thread: 1/8-27 NPT
Fitment & Compatibility
Replacement caliper for the Wilwood AeroDM front conversion on Toyota 4Runner (2015–2021). The matching kit uses a 13.31 × 1.26-inch Wilwood rotor. Match the exact 5.04-inch lug mount, rotor centering and side; the caliper is not a stock 4Runner brake conversion on its own.
Wilwood caliper specifications · Wilwood technical reference
A correct caliper choice begins with the complete brake arrangement. PMB Performance has over 20 years of parts and fitment experience; send the mounting geometry and rotor dimensions for help with your selection.
