HomeSuspension > Suspension, Springs and Related ComponentsDelphi TC660 Suspension Ball Joint - Front Upper
Part #: TC660

Delphi TC660 Suspension Ball Joint - Front Upper

Front Upper
⚙️ 27 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, T100, 4Runner, and Pickup
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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.

BrandDelphi
Part NumberTC660
AdjustableNo
Ball Joint AssemblyYes
Bushings IncludedNo
Castle Nut IncludedYes
ColorGray
Cotter Pin HoleYes
Cotter Pin IncludedYes
Distance Between Mounting Holes35.0
Dust Boot IncludedYes
Dust Boot MaterialCholoroprene Rubber (CR)
Grease Fitting IncludedNo
GreaseableNo
Height3.941
Height100.1
Item GradeStandard Replacement
Length351
MaterialSteel
Maximum Outside Diameter4.055
Maximum Outside Diameter103.0
Mount Plate IncludedNo
Mounting Bolt Head Diameter0.496
Mounting Bolt Head Diameter12.6
Mounting Bolt Length1.102
Mounting Bolt Length28.0
Mounting Bolt Shank Diameter0.315
Mounting Bolt Shank Diameter8.0
Mounting Bolt Thread Diameter8.0
Mounting Bolt Thread Length0.591
Mounting Bolt Thread Length15.0
Mounting Bolt Thread Pitch1.25
Mounting Bolts IncludedYes
Mounting Hardware IncludedYes
Mounting Hole Quantity4
Mounting TypeBolt On
Nuts IncludedYes
Position(s)Front Upper
Stud Tapered End 1 Diameter0.659
Stud Tapered End 1 Diameter16.75
Stud Tapered End 2 Diameter0.748
Stud Tapered End 2 Diameter19.0
Stud Thread Diameter0.63
Stud Thread Diameter16.0
Stud Thread Length1.024
Stud Thread Length26.0
Stud Thread Pitch1.5
Stud TypeThreaded
Suspension Grade TypeStandard
Tapered StudYes
Washers IncludedNo
Width77.5
Wrench Size0.945
Wrench Size24.0

This part fits 27 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
1998ToyotaT1004WDFront Upper
1997ToyotaT1004WDFront Upper
1996Toyota4RunnerFront UpperTo 11/1995
1996ToyotaT1004WDFront Upper
1995Toyota4RunnerFront Upper
1995ToyotaPickup4WDFront Upper
1995ToyotaT1004WDFront Upper
1994Toyota4RunnerFront Upper
1994ToyotaPickup4WDFront Upper
1994ToyotaT1004WDFront Upper
1993Toyota4RunnerFront Upper
1993ToyotaPickup4WDFront Upper
1993ToyotaT1004WDFront Upper
1992Toyota4RunnerFront Upper
1992ToyotaPickup4WDFront Upper
1991Toyota4RunnerFront Upper
1991ToyotaPickup4WDFront Upper
1990Toyota4RunnerFront Upper
1990ToyotaPickup4WDFront Upper
1989Toyota4RunnerFront Upper
1989ToyotaPickup4WDFront Upper
1988Toyota4RunnerFront Upper
1988ToyotaPickup4WDFront Upper
1987Toyota4RunnerFront Upper
1987ToyotaPickup4WDFront Upper
1986Toyota4RunnerFront Upper
1986ToyotaPickup4WDFront 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:

101-414943350-2908543350-3904543350-3908543360-39085B9482BJ07003BJ74056J4335039085JBJ456K9482MK9482

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.