{"product_id":"powerstop-ar82158xpr-disc-brake-rotor-set-rear","title":"PowerStop AR82158XPR Disc Brake Rotor Set - Rear","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Power Stop AR82158XPR is a rear disc brake rotor set built for direct OE fitment and improved thermal management. It combines cross-drilled and slotted rotor surfaces with a zinc dichromate coating to help maintain clean friction contact and resist corrosion.\u003c\/p\u003e\u003cp\u003eCompatible with Cadillac ATS rear brake applications, this rotor set is engineered for drivers who want a bolt-on replacement with performance-focused surface design. The AR82158XPR is also a fitment match for 2017 Cadillac ATS rear applications with a 321mm front rotor.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCross-drilled and slotted surface helps move heat, gas, dust, and moisture away from the braking surface.\u003c\/li\u003e\n\u003cli\u003eSilver zinc dichromate plating adds rust and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eVented rotor construction supports heat dissipation under demanding braking conditions.\u003c\/li\u003e\n\u003cli\u003eDirect OE fit reduces the need for special modifications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Fitment and Design\u003c\/h2\u003e\u003cp\u003ePower Stop designed the AR82158XPR as a rear brake rotor solution for Cadillac ATS models from 2013-2018, with a specific 2017 Cadillac ATS rear application noted for vehicles equipped with a 321mm front rotor. The 12.40-inch outside diameter, 5-lug bolt pattern, and vented construction align with the listed application data, while the slotted X drilled surface is intended to keep the pad contact area cleaner during repeated stops. This part number, AR82158XPR, is a practical OE-style replacement for buyers looking for a rotor set with corrosion protection and a performance-oriented finish. The AR82158XPR also cross-references Raybestos Brakes 581045 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake fade during repeated or high-heat stops\u003c\/li\u003e\n\u003cli\u003eSurface contamination from dust, gas, and moisture buildup\u003c\/li\u003e\n\u003cli\u003eRust and corrosion on exposed rotor surfaces\u003c\/li\u003e\n\u003cli\u003eFitment issues when replacing a worn rear rotor with an OE-style part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstall on the rear axle only for the listed Cadillac ATS applications. Confirm rotor diameter, bolt pattern, and the 2017 application note before ordering. Because this rotor is a direct OE fit, no special modifications are needed when used on the confirmed applications.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003ePower Stop positions this rotor as a bolt-on upgrade with OE fitment and corrosion-resistant plating. The drilled and slotted design is engineered for consistent cooling and braking surface cleanup in demanding conditions.\u003c\/p\u003e","brand":"PowerStop","offers":[{"title":"Default Title","offer_id":53580559057077,"sku":"BHKQ-AR82158XPR","price":224.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/P8_AR82158XPR_Fro.jpg?v=1792652899","url":"https:\/\/www.partcatalog.com\/products\/powerstop-ar82158xpr-disc-brake-rotor-set-rear","provider":"PartCatalog","version":"1.0","type":"link"}