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Product details
These BP20 pads cover the listed Aero 4/6, Aero-DM and W4A/W6A calipers with a 0.67-inch pad specification. Select this friction set for a compatible iron, steel or stainless-steel rotor system, rather than the PCM compound required by a carbon-ceramic installation. Street-performance cars, motorsport vehicles and specialized applications are served by Wilwood Engineering’s disc brake systems. Founded by Bill Wood in 1977 and based in Camarillo, California, the company designs and manufactures calipers, brake rotors, master cylinders, valves, fittings and brake lines. Correct selection starts with the complete brake system.
Technical Details
- Manufacturer part number: 150-20-6617K
- Package quantity: 4 pads
- Pad thickness: .67 inch
- Published pad area: 11.1 square inches
- Published pad volume: 5.2 cubic inches
- Rotor compatibility: Steel, Stainless Steel, Iron
- Bedding status: not pre-bedded; follow Wilwood bedding procedure
- Pad profile: 6617
- Friction compound: BP20
Fitment & Compatibility
Wilwood’s compatible-caliper list names Aero4 Radial Mount, Aero4-DS Radial Mount, Aero6 Radial Mount, Aero6-DS Radial Mount, AeroDM Lug Mount, W4A Radial Mount, W4A Radial Mount -Quick-Silver, W4A Radial Mount -Quick-Silver/ST, W4A Radial Mount-ST, W6A Radial Mount, W6A Radial Mount-Quick-Silver, W6A Radial Mount-Quick-Silver/ST, W6A Radial Mount-ST. Check the pad’s mounting outline against the installed caliper before choosing this set. A shared friction compound does not make different plate profiles interchangeable, and axle position cannot be inferred from the compound.
Choosing BP20 brings a wider temperature window than BP10 and medium-friction braking for street/track use. Recommended roles include autocross, drag events and medium-braking dirt or pavement competition. Rotor compatibility covers steel, stainless steel and iron; evaluate the thermal duty of the complete brake package.
Reference: Wilwood product specifications and compound guidance. Manufacturer profile illustration.
PMB Performance’s 20+ years of brake experience can help with the final compatibility check. A pad outline, new-pad thickness and caliper identification give us the information needed to discuss the application.
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.
