{"product_id":"powerstop-ar8638-disc-brake-rotor","title":"PowerStop AR8638 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 AR8638 is engineered for reliable braking performance on select Chevrolet, GMC, Isuzu, and Oldsmobile vehicles. Designed as a direct replacement for front disc brake rotors, this vented rotor meets original equipment specifications to maintain consistent stopping power and vehicle safety.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePart Number: AR8638\u003c\/li\u003e\n\u003cli\u003eVented disc brake rotor design for improved heat dissipation\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 274.00 mm (10.80 inches)\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 28.90 mm (1.14 inches)\u003c\/li\u003e\n\u003cli\u003eDiscard thickness: 27.50 mm (1.08 inches)\u003c\/li\u003e\n\u003cli\u003eOverall height: 54.70 mm (2.20 inches)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole circle diameter: 120.70 mm (4.80 inches)\u003c\/li\u003e\n\u003cli\u003e5 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\u003eThe AR8638 rotor from Power Stop is a vented disc brake rotor designed to replace front OE stock rotors on compatible vehicles including Chevrolet Blazer, GMC Jimmy, Isuzu Hombre, Oldsmobile Bravada, and Chevrolet S10 and Sonoma models. The vented design helps dissipate heat generated during braking, reducing the risk of brake fade and maintaining consistent braking performance. With an outside diameter of 274 mm and a nominal thickness of 28.90 mm, this rotor fits precisely within factory specifications. The discard thickness of 27.50 mm indicates the minimum safe thickness before replacement is necessary, ensuring safety and reliability. The rotor features a 5-lug hole pattern with a mounting bolt hole circle diameter of 120.70 mm, matching the OE fitment requirements for the listed vehicles.\u003c\/p\u003e\u003ch2\u003eAbout the Power Stop - Front OE Stock Replacement Brake Rotor Line\u003c\/h2\u003e\u003cp\u003eThe Power Stop - Front OE Stock Replacement Brake Rotor product line focuses on providing direct OE replacement rotors that meet factory specifications for fit, form, and function. This line is designed to offer a straightforward replacement option for front disc brake rotors, ensuring compatibility and reliable braking performance without modifications. The AR8638 rotor is part of this line, engineered to maintain the original braking characteristics of the vehicle.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped front brake rotors on Chevrolet Blazer and GMC Jimmy\u003c\/li\u003e\n\u003cli\u003eRestores braking performance on Isuzu Hombre and Oldsmobile Bravada with front disc brakes\u003c\/li\u003e\n\u003cli\u003eSolves issues related to brake pulsation and noise caused by rotor wear\u003c\/li\u003e\n\u003cli\u003eAddresses rotor thickness below manufacturer discard limits\u003c\/li\u003e\n\u003cli\u003eImproves heat dissipation to reduce brake fade during regular driving conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure rotor thickness is measured before installation to confirm discard limits\u003c\/li\u003e\n\u003cli\u003eClean rotor surface and hub mounting area to prevent uneven rotor seating\u003c\/li\u003e\n\u003cli\u003eTorque lug nuts to manufacturer specifications to avoid rotor warping\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and replace if worn to ensure optimal rotor performance\u003c\/li\u003e\n\u003cli\u003eFollow vehicle-specific service manual instructions for rotor replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003ePower Stop manufactures the AR8638 rotor to meet or exceed OE standards for durability and performance. While this rotor does not include a rust resistant coating, it is engineered for consistent braking under normal operating conditions. Warranty coverage details should be confirmed with the manufacturer or authorized distributor.\u003c\/p\u003e","brand":"PowerStop","offers":[{"title":"Default Title","offer_id":43590206914741,"sku":"BHKQ-AR8638","price":59.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/P8_AR8638_Fro.jpg?v=1774635267","url":"https:\/\/www.partcatalog.com\/products\/powerstop-ar8638-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}