Wilwood BP-45 Race Pads for AERO and W-Series Brakes

From Camarillo, California, Wilwood Engineering designs and builds disc braking systems for motorsport, street and specialized uses. Bill Wood established the company in 1977; its component range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines. BP-45 brake pads in the .67-inch AERO4/AERO6 and W4A/W6A configuration supply four replacement pads. Choose each component to match the complete system’s braking requirements.

Technical Details

• Manufacturer part number: 150-45-6617K
• Pad/shoe profile: 6617
• Listed Wilwood calipers: Aero4; Aero4-Dust Seal; Aero6; Aero6-Dust Seal; Aero6-DM; W4A; W6A
• Supplied condition: Not pre-bedded; follow the instructions for the selected compound and brake system.
• Catalog pad volume: 5.2 cubic inches
• Catalog pad area: 11.1 square inches
• Catalog thickness: .67 inch
• Compound: BP-45
• Package quantity: 4 individual pads

BP-45 combines high friction with useful cold response and a smooth increase in friction as rotor temperature rises. Wilwood lists it for racing applications with iron or steel rotors. Choose it around the car’s braking load and balance; a matching production-car pad shape does not make this a general street replacement.

Fitment & Compatibility

Use the 0.67-inch pad only in the listed AERO4, AERO6 and W-series configurations. The thicker 0.80-inch AERO option is a separate selection, even where the pad face appears similar.

Manufacturer Reference

Wilwood pad dimensions, compound and caliper information

PMB Performance brings over 20 years of parts and fitment experience. Contact our team with the caliper details and rotor specification to confirm the right pad.

WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.