{"product_id":"wilwood-pad-set-promatrix-d1631","title":"Wilwood ProMatrix D1631 Brake Pad Set","description":"\u003ch4\u003eBuild smooth street response with a wider useful temperature range\u003c\/h4\u003e\u003cp\u003eWilwood 150-D1631K is a four-pad ProMatrix set built on the D1631 plate shape. The PM compound combines smooth engagement, low-to-moderate dust, and low noise with a temperature range suited to performance street driving, autocross, and track-day use on steel or iron rotors.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePM ProMatrix compound delivers medium friction with smooth engagement\u003c\/li\u003e\n\u003cli\u003eFriction response rises progressively as operating temperature increases\u003c\/li\u003e\n\u003cli\u003eLow-to-moderate dust and low noise support street use\u003c\/li\u003e\n\u003cli\u003eWider operating range than Wilwood BP-10 compound\u003c\/li\u003e\n\u003cli\u003eSuitable for performance street, autocross, and track-day use\u003c\/li\u003e\n\u003cli\u003eDesigned for steel and iron rotor surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003cp\u003eNo year-make-model fitment applies. Confirm every dimension, interface, clearance, load, and installation requirement shown below.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eApplication Type\u003c\/th\u003e\n\u003cth\u003eRequirements\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eDimension Based\u003c\/td\u003e\n\u003ctd\u003eSelect by the Wilwood D1631 pad plate and a caliper or brake package specifically documented for that plate. Confirm the .81-inch pad thickness, rotor material, operating temperature, and required clearance. No broad year-make-model fitment is assigned.\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWilwood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e150-D1631K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eBrake Pads - Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad Plate\u003c\/td\u003e\n\u003ctd\u003eD1631\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompound\u003c\/td\u003e\n\u003ctd\u003ePM ProMatrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003eFour pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad Thickness\u003c\/td\u003e\n\u003ctd\u003e.81 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBedded\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFriction Level\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDust Level\u003c\/td\u003e\n\u003ctd\u003eLow to moderate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Level\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Compatibility\u003c\/td\u003e\n\u003ctd\u003eSteel or iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e889545035285\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFour Wilwood ProMatrix brake pads on the D1631 plate shape\u003c\/li\u003e\n\u003cli\u003eNot included: Calipers\u003c\/li\u003e\n\u003cli\u003eNot included: Rotors\u003c\/li\u003e\n\u003cli\u003eNot included: Pad hardware not expressly shown\u003c\/li\u003e\n\u003cli\u003eNot included: Installation labor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Wilwood\u003c\/h4\u003e\u003cp\u003eWilwood Engineering develops brake systems and friction materials for street, competition, and specialty applications. Its ProMatrix compounds are selected by pad plate, caliper compatibility, rotor material, temperature range, and intended use rather than by a broad vehicle claim.\u003c\/p\u003e\u003ch4\u003eRelated Parts\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eUse only calipers, rotors, and installation hardware verified for the D1631 pad plate, .81-inch thickness, and intended operating range.\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstrong\u003eWhat is the 150-D1631K?\u003c\/strong\u003e\u003cp\u003eIt is a four-pad Wilwood ProMatrix set using the D1631 pad plate and PM friction compound.\u003c\/p\u003e\u003cstrong\u003eHow many pads are included?\u003c\/strong\u003e\u003cp\u003eThe package contains four pads.\u003c\/p\u003e\u003cstrong\u003eWhat is the pad thickness?\u003c\/strong\u003e\u003cp\u003eWilwood lists a nominal pad thickness of .81 inch.\u003c\/p\u003e\u003cstrong\u003eAre the pads pre-bedded?\u003c\/strong\u003e\u003cp\u003eNo. They are supplied non-bedded and should be conditioned according to current Wilwood procedures.\u003c\/p\u003e\u003cstrong\u003eWhat driving is the PM compound intended for?\u003c\/strong\u003e\u003cp\u003eIt is intended for performance street use and can also support autocross and track-day use within its documented temperature range.\u003c\/p\u003e\u003cstrong\u003eWhat rotors can be used?\u003c\/strong\u003e\u003cp\u003eWilwood specifies steel or iron rotor surfaces for this compound.\u003c\/p\u003e\u003cstrong\u003eDo these pads have a universal vehicle fitment?\u003c\/strong\u003e\u003cp\u003eNo. Selection is based on the D1631 pad plate, compatible Wilwood caliper or brake package, pad thickness, and operating requirements.\u003c\/p\u003e\u003cstrong\u003eHow should compatibility be confirmed?\u003c\/strong\u003e\u003cp\u003eMatch the pad plate and thickness to the current caliper or kit documentation and inspect the existing components before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eConfirm the brake system calls for the D1631 pad plate and .81-inch pad thickness before opening the package.\u003c\/li\u003e\n\u003cli\u003eRaise and support the vehicle safely, remove the wheel as required, and inspect the caliper, rotor, seals, guides, and hardware.\u003c\/li\u003e\n\u003cli\u003eInstall the pads in the correct orientation with the hardware and lubricants specified by Wilwood, keeping friction surfaces clean.\u003c\/li\u003e\n\u003cli\u003eReassemble and tighten all components to the current brake-system specifications, then restore a firm pedal before moving the vehicle.\u003c\/li\u003e\n\u003cli\u003eBed the pads against compatible steel or iron rotors according to current Wilwood guidance and verify safe braking operation.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eCalifornia Proposition 65 Warning:\u003c\/strong\u003e This product may expose you to chemicals known to the State of California to cause cancer and reproductive harm.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67889794515023,"sku":"WIL150-D1631K","price":135.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/wilwood-150-d1631k-brake-pads-performance-01-1000.webp?v=1793117506","url":"https:\/\/www.blackopsautoworks.com\/products\/wilwood-pad-set-promatrix-d1631","provider":"Black Ops Auto Works","version":"1.0","type":"link"}