Dorman CB81136RD Rugged Duty Suspension Control Arm and Ball Joint Assembly

The Dorman CB81136RD is a Rugged Duty (RD) suspension control arm and ball joint assembly engineered for severe-duty service applications. Dorman's RD line is purpose-built for vehicles that face demanding conditions including off-road use, heavy hauling, towing, and other high-stress environments — making it an ideal choice for work trucks and emergency vehicles that require maximum reliability.

This assembly arrives as a complete, ready-to-install unit with the ball joint and bushings pre-installed, reducing labor time and simplifying the repair process. The housing is constructed from quenched and tempered steel — a stronger material than standard normalized steel — and finished with an exclusive protective coating for superior corrosion and rust resistance.

Key Features:

• Rugged Duty (RD) construction — engineered for off-road, heavy hauling, towing, and other severe-duty applications
• Quenched and tempered steel housing for increased strength and durability over standard normalized steel
• Pre-installed ball joint and bushings for a complete, time-saving repair
• Corrosion-resistant coating on the assembly and included hardware for long-lasting performance
• Pre-loaded with premium grease where applicable to ensure proper lubrication retention
• Direct OE replacement — designed to match the fit and function of the original equipment assembly
• All necessary hardware included, also finished with a corrosion-resistant coating

Dorman's RD chassis line undergoes industry-leading evaluation and testing to ensure a smooth ride, directional stability, and predictable handling dynamics. Backed by Dorman's more than a century of automotive engineering expertise, the CB81136RD delivers the durability and reliability that demanding applications require.