Wilwood 150-40-6617K BP-40 High-Temp Racing Brake Pads

Brake Pad / Caliper Fitment

• Fits calipers using the 6617 pad-plate
• Commonly used in Wilwood big-brake calipers like W4A, W6A, Aero, etc.

Features

• BP-40 compound designed for high-temperature racing performance
• Aggressive initial bite with strong friction under heat
• Excellent fade resistance for sustained, high-load braking
• Linear and predictable pedal feel for driver control
• Low wear rate under competitive conditions
• Optimized for use with iron or steel rotors
• Designed to work well on track vehicles and high-performance builds
• Durable compound built for repeated high-temperature cycles

Specifications

• Part Number: 150-40-6617K
• Pad Plate: 6617
• Compound: BP-40
• Thickness: 0.67" 
• Pad Area: 11.1 in² 
• Pad Volume: 5.2 in³ 

Included Components

• 4x Brake pads (axle set / matching pair)

Product Description

The Wilwood 150-40-6617K brake pads use the BP-40 compound, engineered for racing situations where high temperatures and sustained brake loads are common. These pads are ideal for competition vehicles that need aggressive initial bite and very good thermal durability.

With a large pad surface area (11.1 in²) and solid pad volume, these pads provide excellent modulation and consistent friction through repeated laps. The BP-40 compound offers a fade-resistant performance, making them reliable for track-day use, endurance racing, and other high-stress driving conditions.

This pad set is best used with iron or steel rotors and is designed for Wilwood calipers compatible with the 6617 pad-plate. Whether you're upgrading a big-brake kit or replacing worn racing pads, these deliver race-ready stopping power without sacrificing control.