{"product_id":"powerstop-ar8640-disc-brake-rotor","title":"PowerStop AR8640 Disc Brake Rotor - Front","description":"\u003ch2\u003ePower Stop Front OE Stock Replacement Brake Rotor Overview\u003c\/h2\u003e\u003cp\u003eThe Power Stop - Front OE Stock Replacement Brake Rotor AR8640 is engineered for reliable braking performance on select GM vehicles. Designed as a direct replacement for front disc brake rotors, this vented rotor meets original equipment specifications for thickness and dimensions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePart Number: AR8640\u003c\/li\u003e\n\u003cli\u003eVented disc brake rotor for improved heat dissipation\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 12.00 inches (305.00 mm)\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 1.14 inches (28.90 mm)\u003c\/li\u003e\n\u003cli\u003eDiscard thickness: 1.07 inches (27.20 mm)\u003c\/li\u003e\n\u003cli\u003eOverall height: 2.30 inches (58.20 mm)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole circle diameter: 5.50 inches (139.70 mm)\u003c\/li\u003e\n\u003cli\u003e6 stud\/lug hole quantity\u003c\/li\u003e\n\u003cli\u003eNo rust resistant coating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Power Stop front disc brake rotor is designed to match the original equipment specifications for a precise fit and consistent braking performance. The vented rotor design enhances heat dissipation during braking, helping to reduce brake fade under normal driving conditions. With an outside diameter of 12 inches and a nominal thickness of 1.14 inches, this rotor is suitable for front brake applications on various GM trucks and SUVs.\u003c\/p\u003e\u003cp\u003eThe AR8640 rotor features a discard thickness of 1.07 inches, indicating the minimum safe thickness before replacement is necessary. The overall height of 2.30 inches ensures compatibility with the original caliper and wheel assembly. The mounting bolt hole circle diameter of 5.50 inches and six lug holes provide secure installation on compatible vehicles.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCadillac Escalade, Escalade ESV, Escalade EXT\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche 1500, Silverado 1500, Silverado 1500 Classic, Suburban 1500, Tahoe\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500, Sierra 1500 Classic, Yukon, Yukon XL 1500\u003c\/li\u003e\n\u003cli\u003eChevrolet Astro, Express 1500, Express 2500, Safari, Savana 1500, Savana 2500\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis rotor is intended for front brake replacement on these specific makes and models, ensuring proper fitment and performance.\u003c\/p\u003e\u003ch2\u003ePower Stop - Front OE Stock Replacement Brake Rotor Product Line\u003c\/h2\u003e\u003cp\u003eThe Power Stop - Front OE Stock Replacement Brake Rotor line focuses on providing direct OE replacement parts that meet factory specifications. This product line is designed for customers seeking reliable, no-frills brake rotors that maintain the original braking feel and fitment. The AR8640 rotor exemplifies this approach by offering a vented design and precise dimensions without additional coatings or modifications.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Rotor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake rotor wear and thinning beyond discard thickness\u003c\/li\u003e\n\u003cli\u003eWarped or uneven rotor surfaces causing brake pulsation\u003c\/li\u003e\n\u003cli\u003eReduced braking efficiency due to heat buildup\u003c\/li\u003e\n\u003cli\u003eCorrosion-related rotor damage (note: no rust resistant coating)\u003c\/li\u003e\n\u003cli\u003eCompatibility issues with original front brake assemblies on listed GM models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure rotor thickness is above discard thickness before installation\u003c\/li\u003e\n\u003cli\u003eClean mounting surfaces to prevent uneven rotor seating\u003c\/li\u003e\n\u003cli\u003eTorque lug nuts to manufacturer specifications for secure fitment\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and calipers during rotor replacement\u003c\/li\u003e\n\u003cli\u003eTest brakes at low speed after installation to confirm proper operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003ePower Stop manufactures this rotor to meet or exceed original equipment standards for fit and function. While no specific warranty information is provided, the product line emphasizes OE stock replacement quality to ensure dependable braking performance on compatible Cadillac, Chevrolet, and GMC vehicles.\u003c\/p\u003e","brand":"PowerStop","offers":[{"title":"Default Title","offer_id":43590207766709,"sku":"BHKQ-AR8640","price":77.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/P8_AR8640_Fro.jpg?v=1774635268","url":"https:\/\/www.partcatalog.com\/products\/powerstop-ar8640-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}