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Delphi TC537 Suspension Ball Joint - Rear Left Lower
Delphi Suspension Ball Joint for Audi 90 Quattro and Coupe Quattro
The Delphi TC537 suspension ball joint is engineered to provide reliable steering and suspension performance for Audi 90 Quattro and Coupe Quattro models. Constructed from durable steel with a gray finish, this standard-grade ball joint assembly includes essential mounting hardware for a secure bolt-on installation.
- Material: High-strength steel construction
- Maximum outside diameter: 1.693 inches (43.0 mm)
- Includes dust boot made of chloroprene rubber for protection
- Mounting hardware included: bolts, nuts, and washers
- Adjustable design with two mounting holes spaced 48.0 mm apart
- Standard suspension grade type suitable for OEM replacement
- Mounting bolt length: 2.028 inches (51.5 mm) with 0.394 inch (10.0 mm) shank diameter
- Wrench size required: 17 mm (0.669 inches)
Durable Design and Construction
The Delphi TC537 suspension ball joint is manufactured from steel to ensure strength and longevity under typical driving conditions. The gray finish helps resist corrosion, while the included chloroprene rubber dust boot protects the joint from dirt and moisture, extending service life. This ball joint assembly is designed as a bolt-on replacement with all necessary mounting hardware included, simplifying installation. Its adjustable feature allows for precise alignment, maintaining proper suspension geometry on Audi 90 Quattro and Coupe Quattro vehicles.
Compatible Applications and Use Cases
This suspension ball joint is specifically compatible with Audi 90 Quattro and Coupe Quattro models, making it a direct replacement part for these vehicles. It is intended for use in the suspension system to connect control arms to steering knuckles, enabling smooth pivoting and steering control.
- Restores proper steering response and suspension articulation
- Eliminates excessive play or looseness in suspension components
- Prevents uneven tire wear caused by worn ball joints
- Reduces noise and vibration from faulty suspension joints
- Maintains vehicle stability and handling performance
Installation Notes and Tips
Installation of the Delphi TC537 ball joint requires basic mechanical skills and standard hand tools. The included mounting hardware (bolts, nuts, washers) ensures a secure fit. Use a 17 mm wrench to tighten mounting bolts to manufacturer torque specifications. The dust boot should be inspected during installation to confirm it is properly seated to prevent contamination. Since this ball joint is adjustable, verify alignment settings after installation to maintain correct suspension geometry.
Quality Assurance and Warranty
Delphi suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The TC537 ball joint undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in the product's reliability.
| Brand | Delphi |
| Part Number | TC537 |
| Adjustable | Yes |
| Ball Joint Assembly | Yes |
| Bushings Included | No |
| Castle Nut Included | No |
| Color | Gray |
| Cotter Pin Hole | No |
| Cotter Pin Included | No |
| Distance Between Mounting Holes | 48.0 |
| Dust Boot Included | Yes |
| Dust Boot Material | Choloroprene Rubber (CR) |
| Grease Fitting Included | No |
| Greaseable | No |
| Height | 2.587 |
| Height | 65.7 |
| Item Grade | Standard Replacement |
| Material | Steel |
| Maximum Outside Diameter | 1.693 |
| Maximum Outside Diameter | 43.0 |
| Mounting Bolt Head Diameter | 0.709 |
| Mounting Bolt Head Diameter | 18.0 |
| Mounting Bolt Length | 2.028 |
| Mounting Bolt Length | 51.5 |
| Mounting Bolt Shank Diameter | 0.394 |
| Mounting Bolt Shank Diameter | 10.0 |
| Mounting Bolt Thread Diameter | 10.0 |
| Mounting Bolt Thread Length | 1.102 |
| Mounting Bolt Thread Length | 28.0 |
| Mounting Bolt Thread Pitch | 1.5 |
| Mounting Bolts Included | Yes |
| Mounting Hardware Included | Yes |
| Mounting Hole Quantity | 2 |
| Mounting Type | Bolt On |
| Nuts Included | Yes |
| Position(s) | Rear Left Lower |
| Suspension Grade Type | Standard |
| Washers Included | Yes |
| Width | 90.6 |
| Wrench Size | 0.669 |
| Wrench Size | 17.0 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1991 | Audi | 90 Quattro | Rear Left Lower | |
| 1991 | Audi | Coupe Quattro | Rear Left Lower | |
| 1990 | Audi | 90 Quattro | Rear Left Lower | |
| 1990 | Audi | Coupe Quattro | Rear Left Lower | |
| 1989 | Audi | 90 Quattro | Rear Left Lower | |
| 1988 | Audi | 90 Quattro | Rear Left Lower |
* 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.