HomeSuspension > Suspension, Springs and Related ComponentsDelphi TC6494 Suspension Ball Joint - Front Lower
Part #: TC6494

Delphi TC6494 Suspension Ball Joint - Front Lower

Front Lower
43 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$85.20Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
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: Checker, Oldsmobile, and Cadillac, Marathon, 98, Delta 88, Calais, Commercial Chassis, DeVille, Fleetwood, Delmont 88, Eldorado, Dynamic 88, Jetstar 88, Starfire, Series 60 Fleetwood, Series 62, Series 75 Fleetwood, and Super 88
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Delphi Suspension Ball Joint TC6494 Overview

The Delphi Suspension Ball Joint TC6494 is engineered for front lower suspension applications on select Cadillac and Oldsmobile models. Designed with durable steel construction and a greaseable design, this ball joint supports reliable steering and suspension performance for vehicles like the Cadillac DeVille and Oldsmobile Delta 88.

  • Constructed from high-strength steel for durability
  • Includes grease fitting for easy maintenance
  • Comes with castle nut and cotter pin for secure installation
  • Equipped with a chloroprene rubber dust boot to protect against contaminants
  • Press-in mounting type with tapered stud design
  • Standard suspension grade suitable for replacement needs

Detailed Product Features and Specifications

The Delphi TC6494 suspension ball joint features a maximum outside diameter and width of 63.5 mm, with a height of 101.1 mm, ensuring precise fitment in front lower suspension positions. The stud thread diameter measures 15.84 mm with a tapered stud design, including two tapered end diameters of 19.65 mm and 22.3 mm, providing a secure and stable connection. This assembly includes a grease fitting for routine lubrication, a castle nut, and a cotter pin with a cotter pin hole to maintain proper fastening. The dust boot is made from chloroprene rubber (CR), offering resistance to wear and environmental elements. While bushings, mounting hardware, washers, and nuts are not included, the ball joint assembly is ready for press-in installation.

Compatible Vehicles and Applications

This suspension ball joint is compatible with front lower suspension systems on various Cadillac and Oldsmobile models, including:

  • Cadillac DeVille
  • Cadillac Eldorado
  • Cadillac Fleetwood
  • Oldsmobile Delta 88
  • Oldsmobile Starfire
  • Oldsmobile Commercial Chassis

Common Suspension Issues Addressed

  • Excessive play or looseness in front lower suspension
  • Uneven tire wear caused by worn ball joints
  • Clunking or knocking noises during steering or over bumps
  • Reduced steering responsiveness or alignment problems
  • Contaminant ingress causing premature joint failure

Installation Notes and Tips

Installation of the Delphi TC6494 ball joint requires press-in mounting tools compatible with the specified dimensions. Ensure the grease fitting is accessible for future maintenance. Use the included castle nut and cotter pin to secure the stud properly, preventing loosening during operation. Verify the dust boot is seated correctly to protect the joint from dirt and moisture. This ball joint is not adjustable and does not include mounting hardware, so retain existing components or source separately as needed.

Quality Assurance and Warranty

Delphi suspension components meet standard replacement grade specifications, providing reliable performance for Cadillac and Oldsmobile front lower suspension systems. The TC6494 ball joint is manufactured with quality materials and includes features such as a grease fitting and durable dust boot to extend service life. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandDelphi
Part NumberTC6494
AdjustableNo
Ball Joint AssemblyYes
Bushings IncludedNo
Castle Nut IncludedYes
ColorBlack
Cotter Pin HoleYes
Cotter Pin IncludedYes
Dust Boot IncludedYes
Dust Boot MaterialCholoroprene Rubber (CR)
Grease Fitting IncludedYes
GreaseableYes
Height101.1
Item GradeStandard Replacement
MaterialSteel
Maximum Outside Diameter63.5
Mounting Hardware IncludedNo
Mounting TypePress In
Nuts IncludedNo
Position(s)Front Lower
Stud Tapered End 1 Diameter19.65
Stud Tapered End 2 Diameter22.3
Stud Thread Diameter15.84
Stud Thread Length15.5
Stud TypeMetal
Suspension Grade TypeStandard
Tapered StudYes
Washers IncludedNo
Width63.5

This part fits 43 vehicles. Search below:

YearMakeModelPositionNotes
1970Oldsmobile98Front Lower
1970OldsmobileDelta 88Front Lower
1969CadillacCommercial ChassisFront Lower
1969CadillacDeVilleFront Lower
1969CadillacFleetwoodFront Lower
1969Oldsmobile98Front Lower
1969OldsmobileDelta 88Front Lower
1968CadillacCommercial ChassisFront Lower
1968CadillacDeVilleFront Lower
1968CadillacFleetwoodFront Lower
1968Oldsmobile98Front Lower
1968OldsmobileDelta 88Front Lower
1967CadillacCommercial ChassisFront LowerRWD
1967CadillacDeVilleFront Lower
1967CadillacFleetwoodFront Lower
1967Oldsmobile98Front Lower
1967OldsmobileDelta 88Front Lower
1966CadillacCommercial ChassisFront LowerRWD
1966CadillacDeVilleFront Lower
1966CadillacEldoradoFront Lower
1966CadillacFleetwoodFront Lower
1966Oldsmobile98Front Lower
1966OldsmobileDelta 88Front Lower
1966OldsmobileStarfireFront Lower
1965CadillacCommercial ChassisFront LowerRWD
1965CadillacDeVilleFront Lower
1965CadillacEldoradoFront Lower
1965CadillacFleetwoodFront Lower
1965Oldsmobile98Front Lower
1965OldsmobileDelta 88Front Lower
1965OldsmobileStarfireFront Lower
1964CadillacCommercial ChassisFront LowerRWD
1964CadillacDeVilleFront Lower
1964Oldsmobile98Front Lower
1964OldsmobileStarfireFront Lower
1963CadillacCommercial ChassisFront Lower
1963CadillacDeVilleFront Lower
1963Oldsmobile98Front Lower
1963OldsmobileStarfireFront Lower
1962CadillacCommercial ChassisFront Lower
1962CadillacDeVilleFront Lower
1961CadillacCommercial ChassisFront Lower
1961CadillacDeVilleFront 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:

3631818386203586828703305703735K5073

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