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Delphi TC1622 Suspension Ball Joint - Rear Lower
| Brand | Delphi TC1622 |
|---|---|
| Position | Rear Lower |
| Adjustable | No |
| Ball Joint Assembly | Yes |
| Bushings Included | No |
| Castle Nut Included | Yes |
| Color | Gray |
| Cotter Pin Hole | Yes |
| Cotter Pin Included | Yes |
| Dust Boot Included | Yes |
| Dust Boot Material | Choloroprene Rubber (CR) |
| Grease Fitting Included | No |
| Height | 3.622 |
| Item Grade | Standard Replacement |
| Length | 92 |
| Material | Ball Material - Alloy Steel SAE 5140, Housing Material - Carbon Steel SAE 1040 |
| Maximum Outside Diameter | 1.929 |
| Maximum Outside Diameter | 49.0 |
| Mount Plate Included | No |
| Mounting Bolts Included | No |
| Mounting Hardware Included | Yes |
| Mounting Type | Press In |
| Nuts Included | Yes |
| Stud Taper Per Foot | 0.167 |
| Stud Tapered End 1 Diameter | 0.634 |
| Stud Tapered End 1 Diameter | 16.1 |
| Stud Tapered End 2 Diameter | 0.512 |
| Stud Tapered End 2 Diameter | 13.0 |
| Stud Thread Diameter | 12.0 |
| Stud Thread Length | 1.024 |
| Stud Thread Pitch | 1.25 |
| Stud Type | Threaded |
| Suspension Grade Type | Standard |
| Tapered Stud | Yes |
| Washers Included | No |
| Width | 49.0 |
| Fits | Buick, Oldsmobile, and Pontiac · 93 vehicles |
Standard replacement. OE expertise and dimensional analysis help ensure compatibility.
Press-in design. Includes mounting hardware for a straightforward installation.
Alloy steel ball. Carbon steel housing and a dust boot add durable construction.
Cross-references Mevotech Supreme MK5297, MOOG Chassis Products K5297 and 9769581 for the same application. See all 5.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
OE-Style Rear Lower Ball Joint
Delphi TC1622 is a suspension ball joint built for rear lower applications on select Buick, Oldsmobile, Cadillac, and Pontiac vehicles. It combines OE-focused dimensional control with durable materials to support precise suspension movement and consistent steering feel.
Fits 1986-1999 Buick LeSabre, rear lower. Fits 1992-1999 Oldsmobile 88, rear lower. Fits 1996-1999 Oldsmobile LSS, rear lower. Fits 1987-1999 Pontiac Bonneville, rear lower. Fits 1997-1998 Oldsmobile Regency, rear lower. Fits 1991-1996 Buick Park Avenue, rear lower. Fits 1985-1996 Oldsmobile 98, rear lower. Fits 1993 Cadillac 60 Special, rear lower. Fits 1985-1993 Cadillac Commercial Chassis, rear lower. Fits 1985-1993 Cadillac DeVille, rear lower. Fits 1985-1992 Cadillac Fleetwood, rear lower. Fits 1986-1991 Oldsmobile Delta 88, rear lower. Fits 1988 Pontiac Fiero, front lower.
- Delphi suspension ball joint, part number TC1622
- Press-in mounting type with threaded stud and tapered stud design
- Ball material: Alloy Steel SAE 5140; housing material: Carbon Steel SAE 1040
- Dust boot included; dust boot material is chloroprene rubber (CR)
- Castle nut, cotter pin, cotter pin hole, nuts, and mounting hardware included
- Standard replacement grade for OE-style suspension service
- Stud thread diameter: 12.0 mm; stud thread pitch: 1.25
- Maximum outside diameter: 49.0 mm; length: 92 mm; height: 3.622 in
Detailed Product Overview
Delphi TC1622 is engineered as a rear lower suspension ball joint for a wide range of GM full-size cars, including Buick LeSabre, Buick Park Avenue, Oldsmobile 88, Oldsmobile 98, Oldsmobile Delta 88, Oldsmobile LSS, Oldsmobile Regency, Pontiac Bonneville, and Cadillac DeVille, Fleetwood, and Commercial Chassis applications. It also lists front lower fitment for the 1988 Pontiac Fiero. The press-in design, tapered stud, and OE-style dimensional analysis help maintain proper suspension geometry and fitment consistency during replacement service. Delphi validates its steering and suspension components through temperature and corrosion exposure testing, including sub-zero and high-heat conditions plus extended salt spray testing.
This part cross-references MOOG Chassis Products K5297 for the same application.
Common Repair Symptoms
- Clunking or knocking from the rear suspension
- Excessive play in the lower suspension joint
- Uneven tire wear caused by worn suspension geometry
- Loose or unstable handling over bumps and turns
- Inspection failure due to worn ball joint components
Installation Notes
TC1622 uses a press-in mounting style, so proper suspension service tools are required for installation and removal. Verify the vehicle position carefully before ordering, since this part is listed for rear lower applications on most vehicles and front lower on the 1988 Pontiac Fiero. Confirm stud taper, thread size, and mounting dimensions against the original part before pressing the joint into place.
Quality Assurance
Delphi applies OE-level dimensional and material analysis to support fit accuracy and consistent replacement performance. The part is tested for extreme temperature exposure and salt spray resistance to reflect demanding undercar conditions. Part number TC1622 is built as a standard replacement suspension ball joint for service on compatible Buick, Oldsmobile, Cadillac, and Pontiac applications.
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1999 | Buick | LeSabre | — | — | — | Rear Lower | — |
| 1999 | Oldsmobile | 88 | — | — | — | Rear Lower | — |
| 1999 | Oldsmobile | LSS | — | — | — | Rear Lower | — |
| 1999 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1998 | Buick | LeSabre | — | — | — | Rear Lower | — |
| 1998 | Oldsmobile | 88 | — | — | — | Rear Lower | — |
| 1998 | Oldsmobile | LSS | — | — | — | Rear Lower | — |
| 1998 | Oldsmobile | Regency | — | — | — | Rear Lower | — |
| 1998 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1997 | Buick | LeSabre | — | — | — | Rear Lower | — |
| 1997 | Oldsmobile | 88 | — | — | — | Rear Lower | — |
| 1997 | Oldsmobile | LSS | — | — | — | Rear Lower | — |
| 1997 | Oldsmobile | Regency | — | — | — | Rear Lower | — |
| 1997 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1996 | Buick | LeSabre | — | — | — | Rear Lower | — |
| 1996 | Buick | Park Avenue | — | — | — | Rear Lower | — |
| 1996 | Oldsmobile | 88 | — | — | — | Rear Lower | — |
| 1996 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1996 | Oldsmobile | LSS | — | — | — | Rear Lower | — |
| 1996 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1995 | Buick | LeSabre | — | — | — | Rear Lower | — |
| 1995 | Buick | Park Avenue | — | — | — | Rear Lower | — |
| 1995 | Oldsmobile | 88 | — | — | — | Rear Lower | — |
| 1995 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1995 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1994 | Buick | LeSabre | — | — | — | Rear Lower | — |
| 1994 | Buick | Park Avenue | — | — | — | Rear Lower | — |
| 1994 | Oldsmobile | 88 | — | — | — | Rear Lower | — |
| 1994 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1994 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1993 | Buick | LeSabre | — | — | — | Rear Lower | — |
| 1993 | Buick | Park Avenue | — | — | — | Rear Lower | — |
| 1993 | Cadillac | 60 Special | — | — | — | Rear Lower | — |
| 1993 | Cadillac | Commercial Chassis | — | 4.9L | V8 | Rear Lower | — |
| 1993 | Cadillac | DeVille | — | — | — | Rear Lower | — |
| 1993 | Oldsmobile | 88 | — | — | — | Rear Lower | — |
| 1993 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1993 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1992 | Buick | LeSabre | — | — | — | Rear Lower | — |
| 1992 | Buick | Park Avenue | — | — | — | Rear Lower | — |
| 1992 | Cadillac | Commercial Chassis | — | 4.9L | V8 | Rear Lower | — |
| 1992 | Cadillac | DeVille | — | — | — | Rear Lower | — |
| 1992 | Cadillac | Fleetwood | FWD | — | — | Rear Lower | — |
| 1992 | Oldsmobile | 88 | — | — | — | Rear Lower | — |
| 1992 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1992 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1991 | Buick | LeSabre | — | — | — | Rear Lower | — |
| 1991 | Buick | Park Avenue | — | — | — | Rear Lower | — |
| 1991 | Cadillac | Commercial Chassis | — | — | — | Rear Lower | — |
| 1991 | Cadillac | DeVille | — | — | — | Rear Lower | — |
| 1991 | Cadillac | Fleetwood | FWD | — | — | Rear Lower | — |
| 1991 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1991 | Oldsmobile | Delta 88 | — | — | — | Rear Lower | — |
| 1991 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1990 | Buick | LeSabre | FWD | — | — | Rear Lower | — |
| 1990 | Cadillac | Commercial Chassis | — | — | — | Rear Lower | — |
| 1990 | Cadillac | DeVille | — | — | — | Rear Lower | — |
| 1990 | Cadillac | Fleetwood | FWD | — | — | Rear Lower | — |
| 1990 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1990 | Oldsmobile | Delta 88 | — | — | — | Rear Lower | — |
| 1990 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1989 | Buick | LeSabre | FWD | — | — | Rear Lower | — |
| 1989 | Cadillac | Commercial Chassis | — | — | — | Rear Lower | — |
| 1989 | Cadillac | DeVille | — | — | — | Rear Lower | — |
| 1989 | Cadillac | Fleetwood | FWD | — | — | Rear Lower | — |
| 1989 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1989 | Oldsmobile | Delta 88 | — | — | — | Rear Lower | — |
| 1989 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1988 | Buick | LeSabre | FWD | — | — | Rear Lower | — |
| 1988 | Cadillac | Commercial Chassis | — | — | — | Rear Lower | — |
| 1988 | Cadillac | DeVille | — | — | — | Rear Lower | — |
| 1988 | Cadillac | Fleetwood | FWD | — | — | Rear Lower | — |
| 1988 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1988 | Oldsmobile | Delta 88 | — | — | — | Rear Lower | — |
| 1988 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1988 | Pontiac | Fiero | — | — | — | Front Lower | — |
| 1987 | Buick | LeSabre | FWD | — | — | Rear Lower | — |
| 1987 | Cadillac | Commercial Chassis | — | — | — | Rear Lower | — |
| 1987 | Cadillac | DeVille | — | — | — | Rear Lower | — |
| 1987 | Cadillac | Fleetwood | FWD | — | — | Rear Lower | — |
| 1987 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1987 | Oldsmobile | Delta 88 | — | — | — | Rear Lower | — |
| 1987 | Pontiac | Bonneville | — | — | — | Rear Lower | — |
| 1986 | Buick | LeSabre | FWD | — | — | Rear Lower | — |
| 1986 | Cadillac | Commercial Chassis | — | — | — | Rear Lower | — |
| 1986 | Cadillac | DeVille | — | — | — | Rear Lower | — |
| 1986 | Cadillac | Fleetwood | FWD | — | — | Rear Lower | — |
| 1986 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
| 1986 | Oldsmobile | Delta 88 | — | — | — | Rear Lower | — |
| 1985 | Cadillac | Commercial Chassis | — | — | — | Rear Lower | — |
| 1985 | Cadillac | DeVille | — | — | — | Rear Lower | — |
| 1985 | Cadillac | Fleetwood | FWD | — | — | Rear Lower | — |
| 1985 | Oldsmobile | 98 | — | — | — | Rear Lower | — |
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