HomeSuspension > Suspension, Springs and Related ComponentsDelphi TC6339 Suspension Control Arm and Ball Joint Assembly - Front Right or Front Right Lower
Part #: TC6339

Delphi TC6339 Suspension Control Arm and Ball Joint Assembly - Front Right or Front Right Lower

Front Right Lower and Front Right
12 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick and Cadillac, DTS and Lucerne
Easy Returns — Return within 60 days for a full refund
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Delphi Suspension Control Arm and Ball Joint Assembly Overview

The Delphi TC6339 suspension control arm and ball joint assembly is designed specifically for front right lower suspension on Buick DTS and Cadillac Lucerne models. Engineered with durable aluminum construction and natural rubber bushings, this assembly ensures reliable performance and precise fitment for your vehicle.

  • Pre-greased for immediate installation
  • Includes natural rubber bushings for effective vibration dampening
  • Machined ball joint mounting with threaded stud for secure attachment
  • Durable aluminum control arm with casting and forging construction
  • Includes mounting hardware for straightforward replacement
  • Designed for front right lower suspension position

Detailed Product Description

The Delphi TC6339 suspension control arm and ball joint assembly combines a machined ball joint mounting type with a threaded stud to provide a secure and stable connection to the vehicle’s suspension system. Constructed from aluminum using casting and forging methods, the control arm offers a balance of strength and lightweight performance. The included natural rubber bushings help absorb road vibrations and reduce noise, contributing to a smoother ride. This assembly is pre-greased, eliminating the need for additional lubrication during installation, and comes with mounting hardware to facilitate a proper fit on Buick DTS and Cadillac Lucerne models.

Common Applications and Problem Resolution

  • Replacement for worn or damaged front right lower suspension control arm
  • Eliminates excessive suspension noise and vibration caused by deteriorated bushings
  • Restores proper wheel alignment and handling performance
  • Addresses ball joint wear that can lead to steering instability
  • Improves suspension durability and safety on Buick DTS and Cadillac Lucerne vehicles

Installation Notes and Tips

  • Ensure vehicle is securely lifted and supported before beginning installation
  • Verify the part number TC6339 matches the original component for correct fitment
  • Pre-greased ball joint and bushings reduce installation time and maintenance
  • Torque all mounting bolts to manufacturer specifications for safety and performance
  • Check wheel alignment after installation to maintain proper handling

Quality Assurance and Warranty

Delphi suspension components meet standard replacement grade requirements, ensuring reliable performance and durability. The TC6339 assembly is manufactured to strict quality standards to provide consistent fit and function for Buick DTS and Cadillac Lucerne vehicles. While specific warranty details are not provided, Delphi products typically come with coverage against manufacturing defects to support customer confidence.

BrandDelphi
Part NumberTC6339
Pre-GreasedYes
Grease Fitting IncludedNo
Bushings IncludedYes
Ball Joint Mounting TypeMachined
Ball Joint Stud TypeThreaded
Control Arm ConstructionCasting/forged
Control Arm MaterialAluminum
Mounting Hardware IncludedYes
Mounting Hole Quantity4
AdjustableNo
GreaseableNo
Control Arm Maximum Width17.28
Control Arm Maximum Width439.0
Ball Joint Stud Length3.5
Ball Joint Stud Length89.0
Control Arm Maximum Length18.25
Control Arm Maximum Length463.5
Bushing MaterialNatural rubber (nr)
Item GradeStandard replacement
Position(s)Front right, front right lower. for the position specific to your

This part fits 12 vehicles. Search below:

YearMakeModelPositionNotes
2011BuickLucerneFront Right Lower
2011CadillacDTSFront RightSuspension System, Soft Ride (FE1), Sport (FE3)
2010BuickLucerneFront Right Lower
2010CadillacDTSFront RightSuspension System, Soft Ride (FE1), Sport (FE3)
2009BuickLucerneFront Right Lower
2009CadillacDTSFront RightSuspension System, Soft Ride (FE1), Sport (FE3)
2008BuickLucerneFront Right Lower
2008CadillacDTSFront RightSuspension System, Soft Ride (FE1), Sport (FE3)
2007BuickLucerneFront Right Lower
2007CadillacDTSFront RightSuspension System, Soft Ride (FE1), Sport (FE3)
2006BuickLucerneFront Right Lower
2006CadillacDTSFront Right LowerSuspension System, Soft Ride (FE1), Sport (FE3)

* 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:

15939600520-394CB90324CB90324PRRK80355

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