Wilwood 120-17954-BK AeroDM Forged Disc Brake Caliper - 4-Piston Black

The Wilwood AeroDM 4-Piston Disc Brake Caliper (P/N 120-17954-BK) delivers race-proven stopping power engineered for demanding street and off-road applications. Built on Wilwood's stress-flow forging technology, this caliper brings serious performance hardware to heavy-duty truck and performance builds.

AeroDM Series Design:

• Stress-flow forged aluminum alloy body — the forging process realigns the metal's internal grain structure to follow the contour of the caliper body, eliminating the stress interruptions caused by machining straight billet stock
• Superior fatigue and distortion resistance — the optimized grain structure delivers exceptional clamping efficiency and long-term structural integrity under sustained braking loads
• Variable lug geometry — enables direct spindle mounting with proprietary 13.38" diameter rotors across a wide range of late-model truck platforms
• Internal fluid ports — eliminate external fluid cross-over tubes and reduce the center bridge assembly mass, contributing to a more rigid caliper body
• Multiple piston volume options — allows tuning of brake bias and pedal feel to match specific vehicle weight and braking requirements
• Black powdercoat finish — corrosion-resistant coating designed for long-term durability in street and off-road environments
• Available as part of the AeroDM lineup offered in multiple mounting configurations and finish options

The AeroDM caliper incorporates race-developed technology into a body designed for widespread platform adaptability, making it an ideal upgrade for trucks and performance vehicles that demand reliable, high-capacity braking performance on and off the road.