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Delphi TC5579 Suspension Ball Joint - Front Lower
| Brand | Delphi TC5579 |
|---|---|
| Position | Front Lower |
| Adjustable | No |
| Ball Joint Assembly | Yes |
| Bushings Included | No |
| Castle Nut Included | No |
| Color | Gray |
| Cotter Pin Hole | No |
| Cotter Pin Included | No |
| Dust Boot Included | Yes |
| Dust Boot Material | Choloroprene Rubber (CR) |
| Grease Fitting Included | Yes |
| Greaseable | Yes |
| Height | 4.449 |
| Item Grade | Standard Replacement |
| Length | 113 |
| Material | Steel |
| Maximum Outside Diameter | 2.35 |
| Maximum Outside Diameter | 59.7 |
| Mount Plate Included | No |
| Mounting Bolts Included | No |
| Mounting Hardware Included | Yes |
| Mounting Type | Press In |
| Nuts Included | Yes |
| Stud Taper Per Foot | 0.125 |
| Stud Tapered End 1 Diameter | 0.866 |
| Stud Tapered End 1 Diameter | 22.0 |
| Stud Tapered End 2 Diameter | 0.748 |
| Stud Tapered End 2 Diameter | 19.0 |
| Stud Thread Diameter | 16.0 |
| Stud Thread Length | 0.827 |
| Stud Thread Pitch | 1.5 |
| Stud Type | Threaded |
| Suspension Grade Type | Standard |
| Tapered Stud | Yes |
| Washers Included | No |
| Width | 59.7 |
| Fits | Mitsubishi · 4 vehicles |
Standard replacement. OE-style fit and compatibility for dependable service.
Greaseable design. Includes a grease fitting and dust boot for easier maintenance.
Steel construction. Built with a threaded, press-in ball joint assembly.
Cross-references K9470, K9665 and MB527383 for the same application. See all 5.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi TC5579 Front Lower Ball Joint
Delphi TC5579 is a front lower suspension ball joint built for OE-style replacement on select Mitsubishi Van applications. It combines a steel body, greaseable design, and a press-in mounting style to support precise suspension movement and consistent steering response.
Fits 1987-1990 Mitsubishi Van, front lower. This Delphi TC5579 ball joint is also a direct reference for service work on the same application where OE-style dimensions and fit are required.
Key Features
- OE-style suspension ball joint for front lower placement
- Steel construction with gray finish
- Press-in mounting type
- Grease fitting included for serviceability
- Dust boot included with chloroprene rubber material
- Ball joint assembly included
- Standard replacement grade
- Mounting hardware included
- Threaded tapered stud with 16.0 mm stud thread diameter
Detailed Description
Delphi TC5579 is engineered for the front lower suspension position on 1987-1990 Mitsubishi Van models. Delphi applies OE dimensional and material analysis to help maintain proper compatibility between the replacement part and the original suspension geometry. The ball joint uses a press-in design, a threaded tapered stud, and a greaseable service layout to support routine maintenance and dependable operation. Delphi tests its OE and aftermarket steering components across extreme temperature and corrosion conditions, including sub-zero and high-heat exposure as well as extended salt spray testing.
This part cross-references Monroe Shocks & Struts (e.g., RK620820) for the same application.
Common Repair Symptoms
- Front suspension looseness or play
- Clunking or popping from the lower control arm area
- Uneven tire wear caused by worn suspension joints
- Steering wander or reduced directional stability
- Visible boot damage or grease loss at the joint
Installation Notes
Verify front lower placement before installation and confirm the press-in bore, stud taper, and thread specifications match the original component. Because this is a press-in ball joint, proper suspension service tools are required for removal and installation. Inspect the surrounding control arm and related hardware for wear before completing the repair on your Mitsubishi Van.
Quality Assurance
Delphi uses OE-focused engineering, dimensional verification, and material analysis to support fit and function in aftermarket steering and suspension parts. TC5579 is built to the same application standards expected for front lower service on 1987-1990 Mitsubishi Van models.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1990 | Mitsubishi | Van | Front Lower | — |
| 1989 | Mitsubishi | Van | Front Lower | — |
| 1988 | Mitsubishi | Van | Front Lower | — |
| 1987 | Mitsubishi | Van | Front Lower | — |
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