Wilwood Anodized AeroDM Front Left Caliper — 7.56-Inch Mount and 1.25-Inch Rotor Width for GM 1500 Trucks/SUVs (1999–2018)

For a brake assembly requiring the 1.25-inch rotor-width version, this Wilwood AeroDM front left brake caliper for GM 1500 Trucks/SUVs provides the anodized configuration. Compare its lug mount and piston area with the component being replaced. 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. The Wilwood disc brake range is designed and manufactured for motorsport, street-performance and specialized applications. It includes brake lines, fittings, valves and master cylinders together with calipers and brake rotors. Wilwood Engineering was founded in 1977 by Bill Wood and is based in Camarillo, California; its components must be matched to the complete braking system.

Technical Details

• Manufacturer part number: 120-16824
• 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: 8.7 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 conversions on 1999–2006 and 2007–2018 GM 1500 trucks/SUVs. 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

With over 20 years of experience in parts and fitment, PMB Performance can help you compare the actual brake assembly. Include rotor width, mounting centers and the existing caliper details when requesting assistance.