HomeSuspension > Suspension, Springs and Related ComponentsDelphi TC1946 Suspension Control Arm and Ball Joint Assembly - Front Lower Forward
Part #: TC1946

Delphi TC1946 Suspension Control Arm and Ball Joint Assembly - Front Lower Forward

Front Lower Forward
14 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Audi and Volkswagen, A8 Quattro, S8, and Phaeton
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Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC1946 suspension control arm and ball joint assembly is engineered for front lower forward suspension applications on select Audi and Volkswagen models. Designed with durable aluminum construction and pre-greased bushings, this assembly provides reliable performance for vehicles like the Audi A8 Quattro, Volkswagen Phaeton, and S8.

  • Pre-greased for immediate installation
  • Includes natural rubber bushings for vibration dampening
  • Threaded ball joint stud for secure fitment
  • Aluminum casting/forged control arm construction
  • Mounting hardware included for convenience
  • Compatible with front lower forward suspension position
  • Standard replacement grade for light suspension use

Technical Details and Construction

The Delphi TC1946 control arm assembly features a lightweight yet strong aluminum control arm constructed through casting and forging processes. This ensures structural integrity while reducing unsprung weight. The assembly includes natural rubber bushings that help absorb road vibrations and improve ride quality. The ball joint stud is threaded, measuring approximately 3.78 inches in length, providing a secure connection to the suspension knuckle. With four mounting holes of varying diameters, the control arm is designed for precise fitment and alignment. The gray finish offers corrosion resistance and a clean appearance under the vehicle.

Compatible Vehicles and Applications

This suspension control arm and ball joint assembly is compatible with the following vehicles:

  • Audi A8 Quattro (front lower forward position)
  • Volkswagen Phaeton (front lower forward position)
  • Volkswagen S8 (front lower forward position)

Part number TC1946 is specifically designed to meet the suspension requirements of these models, ensuring proper fit and function.

Common Suspension Issues Addressed

  • Worn or damaged control arm bushings causing excessive play
  • Ball joint wear leading to steering instability or noise
  • Corroded or bent control arms affecting wheel alignment
  • Vibration and harshness from deteriorated suspension components
  • Loose or missing mounting hardware compromising suspension integrity

Installation Notes and Tips

  • Pre-greased bushings eliminate the need for additional lubrication during installation
  • Verify the front lower forward position before installation to ensure correct placement
  • Use included mounting hardware to maintain proper torque specifications
  • Inspect related suspension components for wear during replacement
  • Alignment check is recommended after installation to maintain handling performance

Quality Assurance and Warranty

The Delphi TC1946 suspension control arm and ball joint assembly is manufactured to meet standard replacement grade specifications for light suspension use. Each unit undergoes quality control inspections to ensure durability and fitment accuracy. While specific warranty details may vary, Delphi products typically come with a limited warranty covering defects in materials and workmanship.

BrandDelphi
Part NumberTC1946
AdjustableNo
Ball Joint Stud Length3.78
Ball Joint Stud Length96.0
Ball Joint Stud TypeThreaded
Bushing MaterialNatural Rubber (NR)
Bushings IncludedYes
Control Arm ColorGray
Control Arm ConstructionCasting/Forged
Control Arm MaterialAluminum
Control Arm Maximum Length20.709
Control Arm Maximum Length526.0
Control Arm Maximum Width5.748
Control Arm Maximum Width146.0
Grease Fitting IncludedNo
GreaseableNo
Item GradeStandard Replacement
Mounting Hardware IncludedYes
Mounting Hole Diameter0.24
Mounting Hole Diameter0.39
Mounting Hole Diameter0.48
Mounting Hole Diameter6.2
Mounting Hole Diameter10.0
Mounting Hole Diameter12.1
Mounting Hole Quantity4
Position(s)Front Lower Forward
Pre-GreasedYes
Suspension Grade TypeLight

This part fits 14 vehicles. Search below:

YearMakeModelPositionNotes
2010AudiA8 QuattroFront Lower Forward
2009AudiA8 QuattroFront Lower Forward
2009AudiS8Front Lower Forward
2008AudiA8 QuattroFront Lower Forward
2008AudiS8Front Lower Forward
2007AudiA8 QuattroFront Lower Forward
2007AudiS8Front Lower Forward
2006AudiA8 QuattroFront Lower Forward
2006VolkswagenPhaetonFront Lower Forward
2005AudiA8 QuattroFront Lower Forward
2005VolkswagenPhaetonFront Lower Forward
2004AudiA8 QuattroFront Lower Forward
2004VolkswagenPhaetonFront Lower Forward
2003AudiA8 QuattroFront Lower Forward

* 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:

101-5970102-59704E0 407 151 G4E0 407 151 J4E0 407 151 L4E0407151K507-183652-1755CB12085CB12085PRCMS70133FA3362JTC1036K620453RK620453

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