HomeSuspension > Suspension, Springs and Related ComponentsDelphi TC502 Suspension Ball Joint - Front Left Lower
Part #: TC502

Delphi TC502 Suspension Ball Joint - Front Left Lower

Front Left Lower
11 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Audi, 90, 90 Quattro, 80, 80 Quattro, and Coupe Quattro
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Delphi Suspension Ball Joint for Audi 80 and 90 Models

The Delphi TC502 suspension ball joint is engineered for reliable performance in Audi 80, 80 Quattro, 90, 90 Quattro, and Coupe Quattro vehicles. Designed with durable steel construction and a premium suspension grade type, this ball joint ensures consistent handling and suspension stability.

  • Constructed from high-strength steel for durability
  • Includes dust boot made of chloroprene rubber for protection against contaminants
  • Comes with mounting hardware including nuts, washers, and bolts for bolt-on installation
  • Standard suspension grade type suitable for everyday driving conditions
  • Compatible with Audi 80, 80 Quattro, 90, 90 Quattro, and Coupe Quattro models

Durable Design and Key Specifications

The Delphi TC502 suspension ball joint features a maximum outside diameter of 64.0 mm and a length of 114 mm, providing a precise fit for specified Audi models. The assembly includes a dust boot made from chloroprene rubber (CR), 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 and includes all necessary mounting hardware such as nuts, washers, and bolts with a length of 36.4 mm and a head diameter of 19.6 mm. The design excludes grease fittings and bushings, focusing on a maintenance-free, sealed assembly.

Applications and Problem Resolution

This suspension ball joint is used to connect the control arm to the steering knuckle, allowing for smooth pivoting and suspension articulation. It addresses several common suspension issues, including:

  • Excessive play or looseness in the front suspension
  • Uneven tire wear caused by worn ball joints
  • Clunking or knocking noises during driving over bumps
  • Steering instability or wandering
  • Reduced suspension responsiveness and handling precision

Installation Notes and Tips

Installation of the Delphi TC502 ball joint requires removal of the old ball joint and proper alignment of the new unit. Since the product includes mounting hardware, ensure all bolts and nuts are torqued to manufacturer specifications. The dust boot should be inspected during installation to confirm it is seated correctly to prevent premature wear. This ball joint is not greaseable, so no additional lubrication is necessary after installation.

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet or exceed OEM standards, ensuring reliable fit and function. The TC502 ball joint undergoes rigorous quality control to maintain durability and performance. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship for a defined period. Consult product documentation or supplier for exact warranty terms.

BrandDelphi
Part NumberTC502
AdjustableNo
Ball Joint AssemblyYes
Bushing Quantity0
Bushings IncludedNo
Castle Nut IncludedNo
Cotter Pin HoleNo
Cotter Pin IncludedNo
Distance Between Mounting Holes24.9
Distance Between Mounting Holes49.0
Dust Boot IncludedYes
Dust Boot MaterialCholoroprene Rubber (CR)
Grease Fitting IncludedNo
GreaseableNo
Height3.425
Height87.0
Item GradeStandard Replacement
Length114
MaterialSteel
Maximum Outside Diameter2.52
Maximum Outside Diameter64.0
Mount Plate IncludedNo
Mounting Bolt Head Diameter19.6
Mounting Bolt Length1.433
Mounting Bolt Length36.4
Mounting Bolt Thread Length30.0
Mounting Bolt Thread Pitch1.25
Mounting Bolts IncludedYes
Mounting Hardware IncludedYes
Mounting Hole Quantity3
Mounting TypeBolt On
Nuts IncludedYes
Position(s)Front Left Lower
Suspension Grade TypeStandard
Tapered StudNo
TypePremium
Washers IncludedYes
Width64.0

This part fits 11 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
1995Audi90Front Left Lower
1995Audi90 QuattroSportFront Left Lower
1995Audi90 QuattroBaseFront Left Lower
1994Audi90Front Left Lower
1994Audi90 QuattroCSFront Left Lower
1993Audi90Front Left Lower
1993Audi90 QuattroCSFront Left Lower
1992Audi80Front Left LowerFrom Chassis Serial Number 8CN000001
1992Audi80 QuattroFront Left LowerFrom Chassis Serial Number 8CN000001
1991AudiCoupe QuattroFront Left Lower
1990AudiCoupe QuattroFront 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:

101-4103893 407 365B893 407 365D895 407 3658A0 407 365BJ07056BJ12083JBJ318K90504MK90504

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