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Dorman 521-488 Suspension Control Arm - Rear Upper Rearward
Dorman 521-488 Rear Upper Rearward Control Arm
Dorman 521-488 is a suspension control arm built for specific Mercedes-Benz applications that use a rear upper rearward position at the knuckle. It is precision-engineered and tested as a direct replacement for the original equipment part on select CL500, S430, S500, S350, CL55 AMG, CL600, S55 AMG, and S600 models.
Key Features
- Aluminum construction with a coated black finish
- Casting/forged design for OE-style replacement fitment
- Rubber bushing included with black bushing color
- Welded ball joint mounting type with threaded stud type
- No ball joint installed and no grease fitting included
- Designed for the rear upper rearward position at the knuckle
- Part number 521-488 for easy identification
Detailed Description
This Dorman suspension control arm is built to replace the original rear upper rearward arm on select Mercedes-Benz chassis. The aluminum body, rubber bushing, and coated finish are selected to match the demands of suspension service while maintaining the correct geometry for the application. If you are replacing a worn Mercedes-Benz CL500 control arm, S430 rear upper rearward control arm, or S500 suspension arm, 521-488 provides a direct-fit service part for the listed vehicles.
This part cross-references Delphi TC1751 for the same application.
What It Helps Fix
- Clunking or knocking from the rear suspension
- Excessive play at the knuckle connection
- Uneven tire wear caused by worn suspension bushings
- Loose or unstable rear suspension feel
- Alignment issues related to a worn control arm
Installation Notes and Tips
Install this control arm in the rear upper rearward position at the knuckle only on the listed Mercedes-Benz applications. Mounting hardware is not included, and the ball joint is not preinstalled. Verify bushing orientation, torque fasteners to factory specifications, and perform a wheel alignment after installation. Confirm vehicle fitment by year, make, model, and suspension position before ordering.
Quality Assurance
Dorman manufactures this control arm as a tested replacement part for specific OE applications. The component is built to meet the fit and function requirements of the listed Mercedes-Benz models, including 1999-2006 S430, 2000-2006 S500, and related CL-Class and AMG variants.
| Brand | Dorman |
|---|---|
| Part Number | 521-488 |
| Material | Aluminum |
| Bushing Color | Black |
| Length | 262.5 |
| Construction | Casting/forged |
| Color | Black |
| Finish | Coated |
| Grease Fitting Included | No |
| Bushings Included | Yes |
| Ball Joint Mounting Type | Welded |
| Ball Joint Stud Type | Threaded |
| Ball Joint Included | No |
| Mounting Hardware Included | No |
| Grade Type | Regular |
| Adjustable | No |
| Bushing Material | Rubber |
| Bushing Inside Diameter | 14.3 |
| Bushing Length | 92 |
| Ball Joint Installed | No |
| Bushing Outside Diameter | 39.6 mm |
| Bushing Quantity | 1 |
| End 2 Type | Press in |
| Linkage End Type | Bushing |
| Mounting Brackets Included | No |
| Overall Length | 262.5 mm |
| Package Contents | Control arm |
This part fits 31 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Mercedes-Benz | CL500 | Rear Upper Rearward | Position at Knuckle |
| 2006 | Mercedes-Benz | S350 | Rear Upper Rearward | Position at Knuckle |
| 2006 | Mercedes-Benz | S430 | Rear Upper Rearward | Position at Knuckle |
| 2006 | Mercedes-Benz | S500 | Rear Upper Rearward | Position at Knuckle |
| 2005 | Mercedes-Benz | CL500 | Rear Upper Rearward | Position at Knuckle |
| 2005 | Mercedes-Benz | S430 | Rear Upper Rearward | Position at Knuckle |
| 2005 | Mercedes-Benz | S500 | Rear Upper Rearward | Position at Knuckle |
| 2004 | Mercedes-Benz | CL500 | Rear Upper Rearward | Position at Knuckle |
| 2004 | Mercedes-Benz | S430 | Rear Upper Rearward | Position at Knuckle |
| 2004 | Mercedes-Benz | S500 | Rear Upper Rearward | Position at Knuckle |
| 2003 | Mercedes-Benz | CL500 | Rear Upper Rearward | Position at Knuckle |
| 2003 | Mercedes-Benz | S430 | Rear Upper Rearward | Position at Knuckle |
| 2003 | Mercedes-Benz | S500 | Rear Upper Rearward | Position at Knuckle |
| 2002 | Mercedes-Benz | CL500 | Rear Upper Rearward | Position at Knuckle |
| 2002 | Mercedes-Benz | CL55 AMG | Rear Upper Rearward | Position at Knuckle |
| 2002 | Mercedes-Benz | CL600 | Rear Upper Rearward | Position at Knuckle |
| 2002 | Mercedes-Benz | S430 | Rear Upper Rearward | Position at Knuckle |
| 2002 | Mercedes-Benz | S500 | Rear Upper Rearward | Position at Knuckle |
| 2002 | Mercedes-Benz | S55 AMG | Rear Upper Rearward | Position at Knuckle |
| 2002 | Mercedes-Benz | S600 | Rear Upper Rearward | Position at Knuckle |
| 2001 | Mercedes-Benz | CL500 | Rear Upper Rearward | Position at Knuckle |
| 2001 | Mercedes-Benz | CL55 AMG | Rear Upper Rearward | Position at Knuckle |
| 2001 | Mercedes-Benz | CL600 | Rear Upper Rearward | Position at Knuckle |
| 2001 | Mercedes-Benz | S430 | Rear Upper Rearward | Position at Knuckle |
| 2001 | Mercedes-Benz | S500 | Rear Upper Rearward | Position at Knuckle |
| 2001 | Mercedes-Benz | S55 AMG | Rear Upper Rearward | Position at Knuckle |
| 2001 | Mercedes-Benz | S600 | Rear Upper Rearward | Position at Knuckle |
| 2000 | Mercedes-Benz | CL500 | Rear Upper Rearward | Position at Knuckle |
| 2000 | Mercedes-Benz | S430 | Rear Upper Rearward | Position at Knuckle |
| 2000 | Mercedes-Benz | S500 | Rear Upper Rearward | Position at Knuckle |
| 1999 | Mercedes-Benz | S430 | Rear Upper Rearward | Position at Knuckle |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.