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Delphi TC660 Suspension Ball Joint - Front Upper
Delphi TC660 Suspension Ball Joint Overview
The Delphi TC660 suspension ball joint is engineered for reliable performance in Toyota 4Runner, Pickup, and T100 models. Constructed from durable steel with a gray finish, this standard suspension grade ball joint assembly offers essential components for secure and stable vehicle suspension.
- Material: Steel construction for strength and durability
- Maximum outside diameter: 103.0 mm (4.055 inches)
- Length: 351 mm
- Includes castle nut, cotter pin, mounting hardware, and dust boot
- Stud thread diameter: 16.0 mm (0.63 inches) with 26.0 mm (1.024 inches) thread length
- Mounting hole quantity: 4 for secure installation
- Standard suspension grade type, non-adjustable and non-greaseable
- Wrench size: 24.0 mm (0.945 inches)
Detailed Product Description
The Delphi TC660 suspension ball joint is designed to meet the suspension needs of Toyota 4Runner, Pickup, and T100 vehicles. This ball joint assembly features a robust steel construction with a protective gray coating to resist corrosion and wear. The unit includes a dust boot to protect the joint from dirt and debris, extending its service life. The package comes complete with essential mounting hardware, including a castle nut, cotter pin, and nuts, ensuring a secure and proper fit. With four mounting holes and precise dimensions, the TC660 provides a reliable connection between the suspension components and the steering knuckle.
Common Applications and Problem Solving
- Replaces worn or damaged suspension ball joints in Toyota 4Runner, Pickup, and T100 models
- Addresses suspension noise caused by loose or failing ball joints
- Improves steering stability and control by restoring proper joint function
- Eliminates excessive play or vibration in the front suspension
- Prevents premature tire wear related to suspension issues
Installation Notes and Tips
Installation of the Delphi TC660 suspension ball joint requires basic mechanical skills and appropriate tools. The included mounting hardware simplifies the replacement process. Ensure the vehicle is securely lifted and supported before beginning work. Use a 24 mm wrench to tighten the castle nut to the manufacturer’s torque specifications. Verify the cotter pin is properly installed through the cotter pin hole to secure the nut. Since this ball joint is non-greaseable, no additional lubrication is necessary beyond the factory-installed dust boot protection.
Quality Assurance and Warranty
Delphi suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The TC660 ball joint undergoes rigorous quality control to ensure durability and performance in Toyota 4Runner, Pickup, and T100 applications. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in your suspension repair.
| Brand | Delphi |
| Part Number | TC660 |
| Adjustable | No |
| Ball Joint Assembly | Yes |
| Bushings Included | No |
| Castle Nut Included | Yes |
| Color | Gray |
| Cotter Pin Hole | Yes |
| Cotter Pin Included | Yes |
| Distance Between Mounting Holes | 35.0 |
| Dust Boot Included | Yes |
| Dust Boot Material | Choloroprene Rubber (CR) |
| Grease Fitting Included | No |
| Greaseable | No |
| Height | 3.941 |
| Height | 100.1 |
| Item Grade | Standard Replacement |
| Length | 351 |
| Material | Steel |
| Maximum Outside Diameter | 4.055 |
| Maximum Outside Diameter | 103.0 |
| Mount Plate Included | No |
| Mounting Bolt Head Diameter | 0.496 |
| Mounting Bolt Head Diameter | 12.6 |
| Mounting Bolt Length | 1.102 |
| Mounting Bolt Length | 28.0 |
| Mounting Bolt Shank Diameter | 0.315 |
| Mounting Bolt Shank Diameter | 8.0 |
| Mounting Bolt Thread Diameter | 8.0 |
| Mounting Bolt Thread Length | 0.591 |
| Mounting Bolt Thread Length | 15.0 |
| Mounting Bolt Thread Pitch | 1.25 |
| Mounting Bolts Included | Yes |
| Mounting Hardware Included | Yes |
| Mounting Hole Quantity | 4 |
| Mounting Type | Bolt On |
| Nuts Included | Yes |
| Position(s) | Front Upper |
| Stud Tapered End 1 Diameter | 0.659 |
| Stud Tapered End 1 Diameter | 16.75 |
| Stud Tapered End 2 Diameter | 0.748 |
| Stud Tapered End 2 Diameter | 19.0 |
| Stud Thread Diameter | 0.63 |
| Stud Thread Diameter | 16.0 |
| Stud Thread Length | 1.024 |
| Stud Thread Length | 26.0 |
| Stud Thread Pitch | 1.5 |
| Stud Type | Threaded |
| Suspension Grade Type | Standard |
| Tapered Stud | Yes |
| Washers Included | No |
| Width | 77.5 |
| Wrench Size | 0.945 |
| Wrench Size | 24.0 |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 1998 | Toyota | T100 | 4WD | Front Upper | |
| 1997 | Toyota | T100 | 4WD | Front Upper | |
| 1996 | Toyota | 4Runner | Front Upper | To 11/1995 | |
| 1996 | Toyota | T100 | 4WD | Front Upper | |
| 1995 | Toyota | 4Runner | Front Upper | ||
| 1995 | Toyota | Pickup | 4WD | Front Upper | |
| 1995 | Toyota | T100 | 4WD | Front Upper | |
| 1994 | Toyota | 4Runner | Front Upper | ||
| 1994 | Toyota | Pickup | 4WD | Front Upper | |
| 1994 | Toyota | T100 | 4WD | Front Upper | |
| 1993 | Toyota | 4Runner | Front Upper | ||
| 1993 | Toyota | Pickup | 4WD | Front Upper | |
| 1993 | Toyota | T100 | 4WD | Front Upper | |
| 1992 | Toyota | 4Runner | Front Upper | ||
| 1992 | Toyota | Pickup | 4WD | Front Upper | |
| 1991 | Toyota | 4Runner | Front Upper | ||
| 1991 | Toyota | Pickup | 4WD | Front Upper | |
| 1990 | Toyota | 4Runner | Front Upper | ||
| 1990 | Toyota | Pickup | 4WD | Front Upper | |
| 1989 | Toyota | 4Runner | Front Upper | ||
| 1989 | Toyota | Pickup | 4WD | Front Upper | |
| 1988 | Toyota | 4Runner | Front Upper | ||
| 1988 | Toyota | Pickup | 4WD | Front Upper | |
| 1987 | Toyota | 4Runner | Front Upper | ||
| 1987 | Toyota | Pickup | 4WD | Front Upper | |
| 1986 | Toyota | 4Runner | Front Upper | ||
| 1986 | Toyota | Pickup | 4WD | Front Upper |
* 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.