Moog RK640749 Suspension Control Arm - Rear Lower

Moog RK640749 Rear Lower Control Arm

The Moog RK640749 is a rear lower suspension control arm built for BMW applications that need a direct OE-style replacement. It uses stamped steel construction with rubber bushings to support stable rear suspension geometry and consistent road feel.

Key Features

• Stamped steel construction for structural strength
• Black finish for added corrosion protection
• Rubber bushings included for direct replacement service
• Non-adjustable design for OE-style fitment
• No grease fitting included
• Fits rear lower suspension positions on select BMW models

Detailed Description

Moog RK640749 is engineered as a premium rear lower control arm for foreign and domestic nameplates, with a focus on structural durability and corrosion resistance. The stamped steel arm and rubber bushings are specified for BMW rear suspension service where a non-adjustable lateral link or control arm is required. This part number, RK640749, is used across a wide range of BMW 3 Series and X3/Z4 applications, including BMW 325i, BMW 330i, and BMW M3 rear lower positions.

This part cross-references Dorman OE Solutions 522-222 for the same application.

What It Helps Address

• Rear suspension looseness or excess movement
• Clunking or knocking from worn control arm bushings
• Uneven rear tire wear caused by worn suspension geometry
• Imprecise rear-end tracking during braking or cornering
• Replacement needs for a damaged or corroded rear lower arm

Installation Notes and Tips

Compatible With 2003-2016 BMW Z4, rear lower; 2004-2010 BMW X3, rear lower; 2001-2006 BMW 325Ci, rear lower; 2001-2006 BMW 330Ci, rear lower; 2001-2006 BMW M3, rear lower; 1994-1999 BMW M3, rear lower; 2005 BMW 325i, rear lower; 2001-2005 BMW 325xi, rear lower; 2001-2005 BMW 330i, rear lower; 2001-2005 BMW 330xi, rear lower; 2001-2004 BMW 325i, rear lower; 1992-1995 BMW 325i, rear lower; 2000 BMW 323Ci, rear lower; 1998-2000 BMW 323i, rear lower; 2000 BMW 328Ci, rear lower; 1996-2000 BMW 328i, rear lower; 1992-1999 BMW 318is, rear lower; 1998-1999 BMW 323is, rear lower; 1992-1998 BMW 318i, rear lower; 1993-1995 BMW 320i, rear lower; 1992-1995 BMW 325is, rear lower.

Verify the rear lower position and suspension configuration before installation. Because this arm is non-adjustable, final alignment should be checked after replacement to confirm proper rear suspension geometry.

Quality Assurance

Moog designs this control arm for structural strength and corrosion protection, making it a practical OE replacement choice for BMW rear suspension repair. The RK640749 is built with stamped steel and rubber bushings to match the service requirements of the listed applications.