Vehicle Fitment
- Fits Models with 381mm (15") x 28mm (1.1") Brake Rotors.
AERO4® Series Radial Mount Driver or Passenger Side Brake Caliper (120-13338-BK) by Wilwood®. The new AERO4 forged four piston caliper delivers heavy duty stopping power for the road or track. The caliper incorporates race technology into a body design with widespread adaptability. Radial mounting, multiple options for piston volume, and a rotor diameter ranging from 12.88" to 15.00" give this caliper the versatility necessary to suit all types of heavy weight braking requirements. The new AERO4 is the latest innovation to the W4A / W6A series of calipers. It has been redesigned with internal fluid ports that eliminate the external fluid cross-over tubes and massive center bridge assembly.
Caliper Material: Aluminum |
Caliper Color: Black |
Caliper Construction: Fixed |
Caliper Mount Side: Universal |
Caliper Type: AERO4 |
Driving Style: Performance / Racing |
Mount Type: Radial |
Pad Area: 11 in² |
Pad Plate: 6617 |
Caliper Total Piston Area: 1.98 in² |
Piston Material: Stainless Steel |
Piston Quantity: 4-Piston |
Piston Size: 1.12"/1.12" |
Brake Pad Volume: 5.2 in³ |
Maximum Rotor Width: 1.10" |
Maximum Rotor Diameter: 15" |
Minimum Rotor Diameter: 12.19" |
The body of Aero series is stress-flow forged from a premium grade aluminum alloy billet. Stress-flow forging realigns the metal's internal grain structure to flow within the contour of the caliper body. This process eliminates the stresses and interruptions to the internal grain structure that occur when machining a straight block billet. The results are a caliper with superior clamping efficiency and ultimate strength against fatigue, stresses, and distortion under load.
Wilwood® Engineering designs and manufactures high-performance disc brake systems. Since founding in 1977, Wilwood has developed a substantial matrix of brake components and engineering techniques that allow us to quickly and reliably create brake systems for almost any application. Their core ability is the rapid development of custom engineered brake systems using a combination of off-the-shelf and custom components. In addition to designing and manufacturing brakes for all types of competitive motor sports, Wilwood also manufactures brake systems and components for agricultural equipment, industrial applications, utility vehicles, snowmobiles, quads, motorcycles and military vehicles.