{"product_id":"wagner-brake-dsx125778e-disc-brake-rotor-rear","title":"Wagner Brake DSX125778E Disc Brake Rotor - Rear","description":"\u003ch2\u003eBrake Rotor for Heavy-Duty Rear Applications\u003c\/h2\u003e\u003cp\u003eThe Wagner Brake DSX125778E is a vented disc brake rotor built for demanding stopping conditions. Its cast iron, full-cast construction and rust-resistant coating support consistent braking performance in heavy-duty service.\u003c\/p\u003e\u003cp\u003eFits 2001-2010 Chevrolet Silverado 3500, rear. Fits 2003-2008 Chevrolet Express 3500, rear. Fits 2001-2010 GMC Sierra 3500, rear. Fits 2003-2008 GMC Savana 3500, rear.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCast iron construction with a full-cast design for strength and heat handling.\u003c\/li\u003e\n\u003cli\u003eVented rotor design helps move heat away during repeated stops.\u003c\/li\u003e\n\u003cli\u003eRust-resistant coating helps protect the rotor surface before and after installation.\u003c\/li\u003e\n\u003cli\u003eSmooth, directional braking surface supports even pad contact.\u003c\/li\u003e\n\u003cli\u003e8-lug rotor configuration for listed heavy-duty rear fitments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eWagner Brake DSX125778E is engineered for vehicles that see frequent braking and higher load demands. The vented design, 12.800-inch outside diameter, 1.181-inch nominal thickness, and 132.4 mm overall height align with the listed rear applications on Chevrolet Silverado 3500, Chevrolet Express 3500, GMC Sierra 3500, and GMC Savana 3500. Part number DSX125778E is also cross-referenced to Monroe Shocks \u0026amp; Struts 172286 and 182286 for the same application.\u003c\/p\u003e\u003cp\u003eWagner SD rotors are positioned for severe-duty use, with metallurgy and heat management focused on durability under repeated stops. For buyers searching for a rear brake rotor for Chevrolet Silverado 3500 HD, GMC Sierra 3500 HD, or related heavy-duty van and truck applications, DSX125778E provides a direct replacement format for the listed fitments.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Solve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake fade during repeated stop-and-go driving.\u003c\/li\u003e\n\u003cli\u003eHeat buildup from towing, delivery, or municipal service.\u003c\/li\u003e\n\u003cli\u003eSurface wear from heavy-load braking cycles.\u003c\/li\u003e\n\u003cli\u003eCorrosion on exposed rotor surfaces.\u003c\/li\u003e\n\u003cli\u003eUneven braking feel from worn rear rotors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify rear fitment by year, make, model, and position before installation. Confirm the 8-lug configuration and rotor dimensions match the existing part. Inspect pads, calipers, and hub surfaces during replacement to help maintain even braking performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eWagner Brake designs SD rotors for severe-duty braking environments, with emphasis on metallurgy, heat control, and durability for fleet and commercial use.\u003c\/p\u003e","brand":"Wagner Brake","offers":[{"title":"Default Title","offer_id":53636950818997,"sku":"BCSJ-DSX125778E","price":161.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/WB_DSX125778E_Fro.jpg?v=1793340283","url":"https:\/\/www.partcatalog.com\/products\/wagner-brake-dsx125778e-disc-brake-rotor-rear","provider":"PartCatalog","version":"1.0","type":"link"}