{"product_id":"powerstop-ar8646xpr-disc-brake-rotor-set","title":"PowerStop AR8646XPR Disc Brake Rotor Set - Rear","description":"\u003ch2\u003ePower Stop Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair Overview\u003c\/h2\u003e\u003cp\u003eThe Power Stop - Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair (Part Number AR8646XPR) is engineered for reliable braking performance on heavy-duty Chevrolet and GMC trucks. Designed specifically for rear axle applications, this rotor set offers enhanced heat dissipation and corrosion resistance to maintain consistent stopping power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Chevrolet Express 3500, GMC Savana 3500, Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Silverado 3500, Silverado 3500 Classic, and Silverado 3500 HD models\u003c\/li\u003e\n\u003cli\u003eVented disc brake rotors with drilled and slotted surface for improved heat management\u003c\/li\u003e\n\u003cli\u003eZinc plating provides rust-resistant coating to extend rotor life\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 30.00 mm with discard thickness at 28.50 mm ensures durability and safety\u003c\/li\u003e\n\u003cli\u003eOverall diameter of 324 mm (12.80 inches) and 8 lug holes for secure mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Power Stop rotor pair features a vented design that promotes airflow to reduce heat buildup during braking, which is critical for heavy-duty vehicles like the Chevrolet Silverado 3500 and GMC Sierra 3500 HD. The drilled and slotted surface pattern helps evacuate brake dust, gas, and water, improving brake pad contact and reducing fade. The zinc plating on the rotors offers a protective layer against rust and corrosion, which is especially beneficial for vehicles exposed to harsh weather conditions.\u003c\/p\u003e\u003cp\u003eWith an overall height of 132.10 mm and a mounting bolt hole circle diameter of 165.10 mm, these rotors fit securely on the rear axle of compatible trucks. The 8 stud\/lug hole configuration matches the wheel hub specifications of the listed Chevrolet and GMC models. The nominal thickness of 30.00 mm and discard thickness of 28.50 mm provide a clear maintenance threshold to ensure safe operation.\u003c\/p\u003e\u003ch2\u003eAbout the Power Stop - Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair Line\u003c\/h2\u003e\u003cp\u003eThe Power Stop - Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair product line focuses on delivering rotors that combine performance and durability for rear brake applications. This line incorporates drilled and slotted surfaces to enhance braking efficiency and zinc plating to resist corrosion, making it suitable for trucks that require dependable stopping power under demanding conditions.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rear brake rotors on Chevrolet Express 3500 and GMC Savana 3500\u003c\/li\u003e\n\u003cli\u003eImproves braking performance in heavy-duty use cases such as towing or hauling with Silverado 3500 models\u003c\/li\u003e\n\u003cli\u003eReduces brake fade caused by excessive heat during prolonged braking\u003c\/li\u003e\n\u003cli\u003ePrevents rust and corrosion buildup that can lead to rotor surface degradation\u003c\/li\u003e\n\u003cli\u003eRestores proper rotor thickness to maintain safe braking distances\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with vehicle make and model before installation\u003c\/li\u003e\n\u003cli\u003eCheck rotor thickness and discard limits to confirm replacement necessity\u003c\/li\u003e\n\u003cli\u003eClean mounting surfaces and inspect wheel hub for damage prior to installation\u003c\/li\u003e\n\u003cli\u003eTorque lug nuts to manufacturer specifications to avoid rotor warping\u003c\/li\u003e\n\u003cli\u003eConsider replacing brake pads simultaneously for optimal braking performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003ePower Stop rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The zinc plating process enhances corrosion resistance, contributing to longer rotor life. While specific warranty details are not provided here, Power Stop products typically come with a limited warranty covering defects in materials and workmanship. Always refer to the manufacturer’s warranty documentation for complete terms.\u003c\/p\u003e","brand":"PowerStop","offers":[{"title":"Default Title","offer_id":43590213304501,"sku":"BHKQ-AR8646XPR","price":354.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/P8_AR8646XPR_Fro.jpg?v=1774972454","url":"https:\/\/www.partcatalog.com\/products\/powerstop-ar8646xpr-disc-brake-rotor-set","provider":"PartCatalog","version":"1.0","type":"link"}