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Delphi TC438 Suspension Ball Joint - Front Lower
Delphi Suspension Ball Joint TC438 Overview
The Delphi Suspension Ball Joint TC438 is engineered for reliable suspension performance on select Volkswagen models. Designed with durable steel construction and a premium assembly, this ball joint supports smooth steering and stable handling for vehicles like the Volkswagen Golf, Jetta, Passat, and Corrado.
- Constructed from high-strength steel for durability
- Includes a dust boot made of chloroprene rubber for protection
- Standard suspension grade type suitable for everyday driving
- Comes with mounting hardware including nuts, washers, and bolts
- Compatible with Volkswagen Corrado, Golf, Jetta, and Passat models
Technical Specifications and Features
The Delphi TC438 suspension ball joint features a maximum outside diameter of 80.0 mm and a length of 81 mm, providing a precise fit for compatible Volkswagen vehicles. The assembly includes a dust boot made from chloroprene rubber, which helps protect the joint from dirt and moisture, extending its service life. This premium ball joint is a bolt-on type with three mounting holes spaced 58.0 mm apart, and it includes all necessary mounting hardware such as nuts, washers, and bolts with a length of 30.3 mm. The stud is threaded with a length of 19.5 mm, designed for secure installation without the need for a cotter pin or castle nut.
Compatible Volkswagen Models and Applications
This suspension ball joint is specifically compatible with Volkswagen Corrado, Golf, Jetta, and Passat models. It is designed to replace worn or damaged ball joints in the front suspension system, restoring proper steering control and suspension geometry. The TC438 part number ensures a direct fit and reliable performance for these vehicles.
- Restores steering precision and suspension stability
- Eliminates clunking noises caused by worn ball joints
- Prevents uneven tire wear due to suspension misalignment
- Improves vehicle handling and safety
- Reduces vibration and harshness in the front suspension
Installation Notes and Tips
Installation of the Delphi TC438 ball joint requires basic suspension knowledge and tools. The bolt-on mounting type allows for straightforward replacement without the need for special adapters. Ensure the mounting surface is clean and free of debris before installation. Torque mounting bolts to manufacturer specifications and verify proper seating of the dust boot to maintain joint protection. Since this ball joint is not greaseable, regular inspection is recommended to monitor wear and dust boot condition.
Quality Assurance and Warranty
Delphi suspension components are manufactured to meet or exceed OEM standards, ensuring consistent quality and durability. The TC438 ball joint undergoes rigorous testing for material strength and fitment accuracy. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product reliability.
| Brand | Delphi |
| Part Number | TC438 |
| Adjustable | No |
| Ball Joint Assembly | Yes |
| Bushing Quantity | 0 |
| Bushings Included | No |
| Castle Nut Included | No |
| Cotter Pin Hole | No |
| Cotter Pin Included | No |
| Distance Between Mounting Holes | 58.0 |
| Dust Boot Included | Yes |
| Dust Boot Material | Choloroprene Rubber (CR) |
| Grease Fitting Included | No |
| Greaseable | No |
| Height | 3.071 |
| Height | 78.0 |
| Item Grade | Standard Replacement |
| Length | 81 |
| Material | Steel |
| Maximum Outside Diameter | 3.15 |
| Maximum Outside Diameter | 80.0 |
| Mount Plate Included | Yes |
| Mounting Bolt Head Diameter | 0.591 |
| Mounting Bolt Head Diameter | 15.0 |
| Mounting Bolt Length | 1.193 |
| Mounting Bolt Length | 30.3 |
| Mounting Bolt Shank Diameter | 0.335 |
| Mounting Bolt Shank Diameter | 8.5 |
| Mounting Bolt Thread Length | 0.984 |
| Mounting Bolt Thread Length | 25.0 |
| Mounting Bolt Thread Pitch | 1.25 |
| Mounting Bolts Included | Yes |
| Mounting Hardware Included | Yes |
| Mounting Hole Quantity | 3 |
| Mounting Type | Bolt On |
| Nuts Included | Yes |
| Position(s) | Front Lower |
| Stud Tapered End 1 Diameter | 0.724 |
| Stud Tapered End 1 Diameter | 18.4 |
| Stud Tapered End 2 Diameter | 0.646 |
| Stud Tapered End 2 Diameter | 16.4 |
| Stud Thread Length | 0.768 |
| Stud Thread Length | 19.5 |
| Stud Thread Pitch | 1.5 |
| Stud Type | Threaded |
| Suspension Grade Type | Standard |
| Tapered Stud | Yes |
| Type | Premium |
| Washers Included | Yes |
| Width | 80.0 |
This part fits 20 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1999 | Volkswagen | Golf | Front Lower | |
| 1999 | Volkswagen | Jetta | Front Lower | |
| 1998 | Volkswagen | Golf | Front Lower | |
| 1998 | Volkswagen | Jetta | Front Lower | |
| 1997 | Volkswagen | Golf | Front Lower | |
| 1997 | Volkswagen | Jetta | Front Lower | |
| 1997 | Volkswagen | Passat | Front Lower | |
| 1996 | Volkswagen | Golf | Front Lower | |
| 1996 | Volkswagen | Jetta | Front Lower | |
| 1996 | Volkswagen | Passat | Front Lower | |
| 1995 | Volkswagen | Corrado | Front Lower | |
| 1995 | Volkswagen | Golf | Front Lower | |
| 1995 | Volkswagen | Jetta | Front Lower | |
| 1995 | Volkswagen | Passat | Front Lower | |
| 1994 | Volkswagen | Corrado | Front Lower | |
| 1994 | Volkswagen | Jetta | Front Lower | |
| 1994 | Volkswagen | Passat | Front Lower | |
| 1993 | Volkswagen | Corrado | Front Lower | |
| 1993 | Volkswagen | Passat | Front Lower | |
| 1992 | Volkswagen | Corrado | Front 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.