{"product_id":"wilwood-150-40-10420k","title":"Wilwood BP-40 High-Friction Race Pads for XRZ Radial Mount Brakes","description":"\u003cp\u003eFounded in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering designs and manufactures disc brake systems. Its calipers, rotors, master cylinders, valves, fittings and lines serve motorsport, street and specialized applications with different operating requirements. BP-40 brake pads in the .80-inch XRZ4R configuration supply four replacement pads. The requirements of the complete brake system govern the choice of individual components.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 150-40-10420K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePad\/shoe profile:\u003c\/strong\u003e 10420\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompound:\u003c\/strong\u003e BP-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog pad area:\u003c\/strong\u003e 8.2 square inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplied condition:\u003c\/strong\u003e Not pre-bedded; follow the instructions for the selected compound and brake system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage quantity:\u003c\/strong\u003e 4 individual pads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog thickness:\u003c\/strong\u003e .80 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog pad volume:\u003c\/strong\u003e 4.9 cubic inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListed Wilwood calipers:\u003c\/strong\u003e XRZ4R Radial Mount\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBP-40 provides an aggressive initial response and good low-temperature friction, followed by stable modulation under sustained racing heat. Wilwood lists steel, stainless steel, iron, Super Alloy and titanium rotor materials. This is a racing-only selection, not a street pad; temperature needs and system balance remain part of compound selection.\u003c\/p\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eSelect this 0.80-inch pad for the XRZ4R radial-mount caliper. It is thicker than the 0.65-inch XRS version; verify the available pad space and rotor specification.\u003c\/p\u003e\u003ch3\u003eManufacturer Reference\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wilwood.com\/BrakePads\/BrakePadsProd?itemno=150-40-10420K\" target=\"_blank\" rel=\"noopener\"\u003eWilwood pad dimensions, compound and caliper information\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eFor help matching the installed brake hardware, contact PMB Performance. Our team has more than 20 years of parts and fitment experience.\u003c\/p\u003e\u003cp\u003eWARNING: 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.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67726671020210,"sku":"150-40-10420K","price":227.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/10420_7df88705-263f-4900-99cd-c4e956e8f4ae.jpg?v=1792106044","url":"https:\/\/pmbperformance.com\/products\/wilwood-150-40-10420k","provider":"PMB Performance","version":"1.0","type":"link"}