{"product_id":"raybestos-781766-disc-brake-rotor","title":"Raybestos 781766 Disc Brake Rotor - Front","description":"\u003ch2\u003eOverview of Raybestos Specialty - Truck Disc Brake Rotor 781766\u003c\/h2\u003e\u003cp\u003eThe Raybestos Specialty - Truck Disc Brake Rotor 781766 is engineered for reliable braking performance on Ram ProMaster 1500, 2500, 3500, and ProMaster Rapid models. Designed to meet the demands of heavy-duty truck applications, this vented rotor ensures consistent heat dissipation and durability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Ram ProMaster 1500, 2500, 3500, and ProMaster Rapid\u003c\/li\u003e\n\u003cli\u003ePart number 781766 for precise identification\u003c\/li\u003e\n\u003cli\u003eVented disc brake rotor with smooth surface finish\u003c\/li\u003e\n\u003cli\u003eOverall height: 1.141 inches (29.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 11.811 inches (300.000 mm)\u003c\/li\u003e\n\u003cli\u003eInside diameter: 7.193 inches (182.700 mm)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole quantity: 5 with 0.694 inch (17.650 mm) diameter holes\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 1.260 inches (32.000 mm), discard thickness: 1.181 inches (30.000 mm)\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter: 3.150 inches (80.000 mm)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole circle diameter: 5.110 inches (129.800 mm)\u003c\/li\u003e\n\u003cli\u003eConventional rotor type suitable for drum-in-hat applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRaybestos Specialty - Truck Product Line Details\u003c\/h2\u003e\u003cp\u003eThe Specialty - Truck line by Raybestos focuses on components designed specifically for truck applications, emphasizing durability and performance under heavy load conditions. This disc brake rotor 781766 is part of that line, engineered to provide reliable braking for Ram ProMaster trucks, ensuring compatibility and meeting the rigorous demands of commercial and fleet vehicles.\u003c\/p\u003e\u003ch2\u003eTechnical Description and Specifications\u003c\/h2\u003e\u003cp\u003eThis Raybestos disc brake rotor features a vented design that improves heat dissipation during braking, reducing the risk of brake fade in demanding driving conditions. The smooth surface finish ensures consistent pad contact and braking efficiency. With a nominal thickness of 1.260 inches (32.000 mm) and a discard thickness of 1.181 inches (30.000 mm), this rotor maintains structural integrity throughout its service life. The rotor’s outside diameter measures 11.811 inches (300.000 mm), and it includes five mounting bolt holes with a diameter of 0.694 inches (17.650 mm), arranged on a 5.110 inch (129.800 mm) bolt circle diameter. The center hole diameter is 3.150 inches (80.000 mm), designed for precise fitment on Ram ProMaster hubs.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors on Ram ProMaster 1500, 2500, 3500, and ProMaster Rapid\u003c\/li\u003e\n\u003cli\u003eAddresses brake pulsation and vibration issues caused by uneven rotor surfaces\u003c\/li\u003e\n\u003cli\u003eImproves braking performance and heat management in heavy-duty truck use\u003c\/li\u003e\n\u003cli\u003eRestores proper rotor thickness to maintain safe braking distances\u003c\/li\u003e\n\u003cli\u003eCompatible with conventional drum-in-hat brake systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor surface is clean and free of rust or debris before installation. Verify the mounting bolt hole pattern and center hole diameter match the vehicle hub. Use proper torque specifications for the five mounting bolts to avoid rotor warping. It is recommended to replace brake pads simultaneously to ensure optimal braking performance. Check rotor thickness regularly and replace when it reaches the discard thickness of 1.181 inches (30.000 mm).\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eRaybestos disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The Specialty - Truck line undergoes rigorous quality control to ensure durability and consistent performance. While specific warranty details for part number 781766 should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Raybestos","offers":[{"title":"Default Title","offer_id":44447622561973,"sku":"BDBL-781766","price":148.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RS_781766_Fro.jpg?v=1774636795","url":"https:\/\/www.partcatalog.com\/products\/raybestos-781766-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}