OE Quality
60-Day Returns

Delphi TC3557 Suspension Control Arm and Ball Joint Assembly - Front Left Upper Rearward
Delphi Suspension Control Arm and Ball Joint Assembly Overview
The Delphi TC3557 suspension control arm and ball joint assembly is designed specifically for the front left upper rearward position on Audi A8 Quattro and S8 models. Engineered with a casting and forged construction, this light suspension grade component offers reliable performance for standard replacement needs.
- Compatible with Audi A8 Quattro and S8 front left upper rearward suspension
- Control arm constructed from durable casting and forged materials
- Standard replacement grade for light suspension applications
- Natural rubber bushings for effective vibration dampening
- Ball joint with 18.0 mm thread diameter and 46.0 mm stud length
- Silver finish control arm with a maximum width of 50.0 mm (1.969 inches)
- Single mounting hole with 10.2 mm diameter
- Non-adjustable and non-greaseable design
Detailed Product Description
The Delphi TC3557 suspension control arm and ball joint assembly is crafted to meet the specific suspension requirements of Audi A8 Quattro and S8 vehicles. Its casting and forged construction ensures structural integrity while maintaining a light suspension grade suitable for standard replacement applications. The control arm features a silver finish and incorporates natural rubber bushings that help absorb road vibrations and reduce noise, contributing to a smoother ride quality.
The ball joint included in this assembly has an 18.0 mm thread diameter and a stud length of 46.0 mm, designed to provide precise steering and suspension articulation. This assembly is designed for the front left upper rearward position, ensuring proper fitment and alignment for the specified Audi models. Note that this part is non-adjustable and does not include grease fittings, reflecting its maintenance-free design.
Common Applications and Issues Addressed
- Replacement of worn or damaged front left upper rearward suspension control arm on Audi A8 Quattro and S8
- Correction of suspension misalignment causing uneven tire wear
- Elimination of clunking or knocking noises from front suspension
- Restoration of proper steering response and vehicle handling
- Resolution of vibration or instability during driving
Installation Notes and Tips
- Ensure compatibility with Audi A8 Quattro and S8 front left upper rearward suspension before installation
- Professional installation is recommended to maintain suspension geometry and safety
- Torque all mounting bolts to manufacturer specifications
- Inspect related suspension components for wear during replacement
- Alignment check is advised after installation to ensure proper handling
Quality Assurance and Warranty
Delphi suspension components are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The TC3557 control arm and ball joint assembly is a standard replacement grade part designed for consistent fit and function. While specific warranty details are not provided, Delphi products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or supplier for exact warranty terms.
| Brand | Delphi |
|---|---|
| Part Number | TC3557 |
| Grease Fitting Included | No |
| Suspension Grade Type | Light |
| Control Arm Construction | Casting/forged |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 1 |
| Adjustable | No |
| Greaseable | No |
| Control Arm Maximum Width | 1.969 |
| Control Arm Maximum Width | 50.0 |
| Control Arm Color | Silver |
| Ball Joint Thread Diameter | 18.0 |
| Ball Joint Stud Length | 46.0 |
| Bushing Material | Natural rubber (nr) |
| Mounting Hole Diameter | 10.2 |
| Item Grade | Standard replacement |
| Position(s) | Front left upper rearward |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2018 | Audi | A8 Quattro | Front Left Upper Rearward | |
| 2017 | Audi | A8 Quattro | Front Left Upper Rearward | |
| 2017 | Audi | S8 | Front Left Upper Rearward | |
| 2016 | Audi | A8 Quattro | Front Left Upper Rearward | |
| 2016 | Audi | S8 | Front Left Upper Rearward | |
| 2015 | Audi | A8 Quattro | Front Left Upper Rearward | |
| 2015 | Audi | S8 | Front Left Upper Rearward | |
| 2014 | Audi | A8 Quattro | Front Left Upper Rearward | |
| 2014 | Audi | S8 | Front Left Upper Rearward | |
| 2013 | Audi | A8 Quattro | Front Left Upper Rearward | |
| 2013 | Audi | S8 | Front Left Upper Rearward | |
| 2012 | Audi | A8 Quattro | Front Left Upper Rearward | |
| 2011 | Audi | A8 Quattro | Front Left Upper Rearward | |
| 2010 | Audi | A8 Quattro | Front Left Upper Rearward |
* 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.