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Moog RK621955 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Forward
| Brand | Moog RK621955 |
|---|---|
| Position | Front Left Lower Forward |
| Pre-Greased | Yes |
| Grease Fitting Included | No |
| Bushings Included | Yes |
| Ball Joint Mounting Type | Press in |
| Ball Joint Stud Type | Threaded |
| Mounting Hardware Included | Yes |
| Adjustable | No |
| Control Arm Maximum Length | 15.840 |
| Bushing Material | Rubber |
| Fits | Mercedes-Benz · 16 vehicles |
OE-style replacement. Built as a control arm and ball joint assembly for suspension service.
Pre-greased design. Arrives ready for installation with reduced prep time.
Rubber bushings. Helps isolate suspension movement and road vibration.
Cross-references Beck/Arnley 102-7529, Dorman - OE Solutions 522-713 and Mevotech Supreme CMS101186 for the same application. See all 7.
OE-Style Suspension Control Arm
Moog RK621955 is a suspension control arm and ball joint assembly built for Mercedes-Benz E-Class applications with a front left lower forward mounting position. It is engineered for structural strength and corrosion protection, with pre-greased components and included bushings for a service-ready replacement.
Key Features
- Pre-greased for reduced prep before installation.
- Rubber bushings help isolate suspension movement and road vibration.
- Press-in ball joint with threaded stud design.
- Mounting hardware included for a complete replacement setup.
- Non-adjustable control arm construction.
Detailed Description
This Moog control arm assembly, part number RK621955, is made for Mercedes-Benz E250, E350, E400, and E550 models in the front left lower forward position. The assembly combines the control arm and ball joint into one replacement unit, helping restore suspension geometry when the original part shows wear, looseness, or corrosion. RK621955 is built with rubber bushings and a press-in ball joint design to match the needs of OE-style suspension service.
Moog RK621955 cross-references Beck/Arnley 102-7529 and Dorman - OE Solutions 522-713 for the same application.
What It Is Used For
- Clunking or knocking from a worn suspension joint.
- Excessive play in the control arm or ball joint.
- Uneven tire wear caused by suspension looseness.
- Corrosion-related replacement of the original control arm assembly.
- Restoring stable steering response and suspension alignment.
Installation Notes and Tips
Verify fitment by year, model, and mounting position before installation. Because this assembly uses a press-in ball joint and threaded stud, proper suspension service procedures and alignment checks are recommended after replacement. Confirm all mounting points are clean and free of damage before tightening hardware.
Quality Assurance
MOOG premium control arms for foreign and domestic nameplates are engineered for structural strength and corrosion protection.
| Year | Make | Model | Body Type | # Doors | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2016 | Mercedes-Benz | E250 | — | — | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2016 | Mercedes-Benz | E350 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2016 | Mercedes-Benz | E400 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2015 | Mercedes-Benz | E250 | — | — | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2015 | Mercedes-Benz | E350 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2015 | Mercedes-Benz | E400 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2014 | Mercedes-Benz | E250 | — | — | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2014 | Mercedes-Benz | E350 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2014 | Mercedes-Benz | E400 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2013 | Mercedes-Benz | E350 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2013 | Mercedes-Benz | E400 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2012 | Mercedes-Benz | E350 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2011 | Mercedes-Benz | E350 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2011 | Mercedes-Benz | E550 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2010 | Mercedes-Benz | E350 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2010 | Mercedes-Benz | E550 | Sedan | 4 Door | RWD | Front Left Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
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