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Dorman 533-320 Suspension Ball Joint - Front Lower
Dorman 533-320 Front Lower Ball Joint
Dorman 533-320 is a threaded suspension ball joint built as a standard replacement for specific front lower applications. It is precision-engineered and tested for reliable OE-style service on vehicles such as the Chevrolet Spectrum, Geo Spectrum, Pontiac Sunburst, and Isuzu I-Mark.
Key Features
- Threaded, bolt-in suspension ball joint for front lower mounting locations
- Steel construction with a grey finish
- Rubber dust boot included
- Standard replacement suspension grade
- Mounting hardware included
- 12 mm wrench size
- Pinch-style stud design
- Part number: 533-320
Detailed Description
Dorman 533-320 is a suspension ball joint designed for direct replacement in specific front lower applications. It uses a threaded, bolt-in mounting type with a pinch-style stud and steel body construction. The rubber dust boot helps protect the joint from road contamination, while the standard replacement design supports dependable steering and suspension operation. This part cross-references MOOG Chassis Products K9389 for the same application.
What It Helps Fix
- Front-end looseness or play from a worn ball joint
- Clunking or popping noises from the lower suspension area
- Uneven tire wear related to suspension joint wear
- Steering instability caused by excessive joint movement
- Inspection failures tied to worn front lower suspension components
Installation Notes
Fits 1989 Geo Spectrum, Front Lower. Fits 1985-1989 Isuzu I-Mark, Front Lower, wo/Heavy Duty or Lotus Suspenson. Fits 1985-1988 Chevrolet Spectrum, Front Lower. Fits 1985-1988 Pontiac Sunburst, Front Lower. Verify the front lower position, threaded mounting style, and 12 mm wrench size before installation. The dust boot is included, and the part uses a bolt-in mounting design with two mounting holes.
Quality Assurance
Dorman states this suspension ball joint is precision-engineered and rigorously tested to provide a reliable replacement for the original equipment on specific vehicles. Part number 533-320 is built to standard replacement specifications for consistent fit and function.
| Brand | Dorman |
|---|---|
| Part Number | 533-320 |
| Material | Acero |
| Material | Steel |
| Maximum Outside Diameter | 61 |
| Length | 111 |
| Color | Grey |
| Color | Gris |
| Castle Nut Included | No |
| Castle Nut Included | Non |
| Grease Fitting Included | No |
| Grease Fitting Included | Non |
| Suspension Grade Type | Reemplazo estándar |
| Suspension Grade Type | Standard |
| Bushings Included | No |
| Bushings Included | Non |
| Dust Boot Included | Oui |
| Dust Boot Included | Sí |
| Dust Boot Included | Yes |
| Ball Joint Assembly | Oui |
| Ball Joint Assembly | Sí |
| Ball Joint Assembly | Yes |
| Width | 59 |
| Type | Roscado |
| Type | Threaded |
| Cotter Pin Included | No |
| Cotter Pin Included | Non |
| Cotter Pin Hole | No |
| Cotter Pin Hole | Non |
| Mounting Hardware Included | Oui |
| Mounting Hardware Included | Sí |
| Mounting Hardware Included | Yes |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1989 | Geo | Spectrum | Front Lower | |
| 1989 | Isuzu | I-Mark | Front Lower | wo/Heavy Duty or Lotus Suspenson |
| 1988 | Chevrolet | Spectrum | Front Lower | |
| 1988 | Isuzu | I-Mark | Front Lower | wo/Heavy Duty or Lotus Suspenson |
| 1988 | Pontiac | Sunburst | Front Lower | |
| 1987 | Chevrolet | Spectrum | Front Lower | |
| 1987 | Isuzu | I-Mark | Front Lower | wo/Heavy Duty or Lotus Suspenson |
| 1987 | Pontiac | Sunburst | Front Lower | |
| 1986 | Chevrolet | Spectrum | Front Lower | |
| 1986 | Isuzu | I-Mark | Front Lower | wo/Heavy Duty or Lotus Suspenson |
| 1986 | Pontiac | Sunburst | Front Lower | |
| 1985 | Chevrolet | Spectrum | Front Lower | |
| 1985 | Isuzu | I-Mark | Front Lower | wo/Heavy Duty or Lotus Suspenson |
| 1985 | Pontiac | Sunburst | Front 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.