Wilwood XRS4R/XRS6R BP10 Brake Pads, 0.65-Inch Set

These BP10 pads serve the XRS4R and XRS6R calipers using the 0.65-inch pad specification. They provide the street-oriented compound in this profile, with the installed caliper and rotor arrangement determining fit rather than piston count alone. For Wilwood Engineering, designing and manufacturing disc brake systems encompasses the calipers and brake rotors as well as master cylinders, brake lines, fittings and valves. Bill Wood established the company in 1977; today it is based in Camarillo, California. Its motorsport, street-performance and specialized components require compatibility throughout the system.

Technical Details

• Manufacturer part number: 150-16866K
• Pad profile: 10416
• Friction compound: BP10
• Package quantity: 4 pads
• Pad thickness: .65 inch
• Published pad area: 8.2 square inches
• Published pad volume: 3.8 cubic inches
• Rotor compatibility: Steel, Iron
• Bedding status: not pre-bedded; follow Wilwood bedding procedure

Fitment & Compatibility

Wilwood’s compatible-caliper list names Forged XRS4R Radial Mount, Forged XRS6R Radial Mount. The replacement must match more than pad width: verify the plate shape, locating ears or holes, and caliper clearance for the stated thickness. Front or rear placement is determined by the actual brake installation.

For a street-oriented system, BP10 provides progressive engagement on iron or steel rotor faces. Wilwood also recommends it for muscle cars, drag racing and light-to-medium dirt competition. Rotor material and expected braking temperature should govern compound selection; a pad that fits mechanically is not automatically right for every track session.

Reference: Wilwood product specifications and compound guidance. Manufacturer profile illustration.

Need to resolve a pad-shape or compound question? PMB Performance draws on more than 20 years of experience; provide the brake assembly details so we can help assess the correct match.

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.