{"product_id":"dorman-521-878-suspension-control-arm-and-ball-joint-assembly","title":"Dorman 521-878 Suspension Control Arm and Ball Joint Assembly - Front Right Lower","description":"\u003ch2\u003eDurable Suspension Control Arm and Ball Joint Assembly\u003c\/h2\u003e\u003cp\u003eThe Dorman 521-878 suspension control arm and ball joint assembly is engineered for reliable performance in Chevrolet, GMC, and Hummer trucks and SUVs. Designed to meet regular suspension grade requirements, this assembly ensures proper steering and suspension function for heavy-duty vehicles like the Silverado 2500 HD and Yukon XL 2500.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-greased for immediate installation and smooth operation\u003c\/li\u003e\n\u003cli\u003eIncludes rubber bushings and mounting hardware for a complete replacement\u003c\/li\u003e\n\u003cli\u003eSteel control arm with casting\/forged construction for strength and durability\u003c\/li\u003e\n\u003cli\u003ePress-in ball joint with threaded stud for secure mounting\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple Chevrolet, GMC, and Hummer models including Avalanche 2500 and Sierra 3500 HD\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis suspension control arm and ball joint assembly (part number 521-878) features a black steel control arm with a maximum length of 237 mm and width of 288.5 mm. The assembly includes rubber bushings to absorb road vibrations and reduce noise. The ball joint is pre-installed and press-fitted with a 14 mm threaded stud, ensuring a secure connection to the vehicle’s suspension system. Mounting hardware is included, and the control arm has one mounting hole with a diameter of 12.3 mm. This assembly is designed for light suspension grade applications and is not adjustable.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis Dorman suspension control arm and ball joint assembly is compatible with a range of Chevrolet, GMC, and Hummer models, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Avalanche 2500\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500 HD, 2500, 3500, and their Classic and HD variants\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado 1500 HD, 2500, 3500, and Classic versions\u003c\/li\u003e\n\u003cli\u003eGMC Yukon XL 2500\u003c\/li\u003e\n\u003cli\u003eHummer H2\u003c\/li\u003e\n\u003cli\u003eChevrolet Suburban 2500\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Suspension Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorn or damaged control arm bushings causing steering instability\u003c\/li\u003e\n\u003cli\u003eBall joint wear leading to uneven tire wear or clunking noises\u003c\/li\u003e\n\u003cli\u003eCorroded or bent control arms affecting suspension alignment\u003c\/li\u003e\n\u003cli\u003eLoose or missing mounting hardware compromising suspension integrity\u003c\/li\u003e\n\u003cli\u003ePre-greased ball joints reducing maintenance needs and improving longevity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 521-878 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and press-fitted, no separate ball joint replacement is necessary. Ensure the mounting hole aligns properly with the vehicle’s frame and torque all hardware to manufacturer specifications. This assembly does not include a grease fitting, so no additional greasing is required after installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-878 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and performance. While specific warranty details vary, Dorman typically offers a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":43997456662709,"sku":"BKKY-521-878","price":216.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_521878_Fro_584e6c58-2b24-4649-b71e-0351f87dfa59.jpg?v=1775007939","url":"https:\/\/www.partcatalog.com\/products\/dorman-521-878-suspension-control-arm-and-ball-joint-assembly","provider":"PartCatalog","version":"1.0","type":"link"}