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Dorman 539-990 Alignment Caster / Camber Ball Joint - Front Upper
Dorman 539-990 Alignment Ball Joint
Dorman 539-990 is a standard replacement alignment caster and camber ball joint for select Ford, Lincoln, Mercury, and Mazda vehicles. It is precision-engineered and tested to replace the original equipment part on applications that require front upper caster and camber adjustment.
Key Features
- Alignment caster and camber ball joint for front upper suspension use
- Adjustable design with a -1.00 degree to +1.00 degree range
- Steel construction for standard replacement service
- Dust boot included
- Threaded stud with 12 mm stud thread diameter and 1.25 thread pitch
- Bolt-on mounting style with locking nut included
- Compatible with select Ford Fusion, Lincoln MKZ, Mercury Milan, Mazda 6, and Lincoln Zephyr applications
Product Details
This Dorman 539-990 ball joint is built for front upper suspension alignment where caster and camber correction is needed. The adjustable design helps restore alignment settings on vehicles such as the Ford Fusion, Lincoln MKZ, Mercury Milan, Mazda 6, and Lincoln Zephyr when the original suspension geometry has shifted. It cross-references MOOG Chassis Products K500013 and Mevotech Supreme MK500013 for the same application.
Common Issues It Can Address
- Front-end alignment that cannot be brought back into specification
- Uneven tire wear caused by incorrect caster or camber settings
- Steering pull related to suspension geometry changes
- Suspension wear at the front upper ball joint location
- Need for OE-style replacement on select Ford, Lincoln, Mercury, and Mazda models
Installation Notes
Install on the front upper position only for the listed applications. Verify stud thread size, mounting style, and alignment settings before installation. After replacement, a professional wheel alignment is required to set caster and camber within specification. Confirm vehicle-specific fitment for 2003-2008 Mazda 6, 2006-2012 Ford Fusion, 2006 Lincoln Zephyr, 2006-2011 Mercury Milan, and 2007-2012 Lincoln MKZ.
Quality Assurance
Dorman manufactures this part as a standard replacement suspension component and subjects it to engineering and testing checks to support reliable OE-style service on the listed vehicles. Part number 539-990 is built for consistent fit and alignment correction on the specified front upper applications.
| Brand | Dorman |
|---|---|
| Part Number | 539-990 |
| Material | Acero |
| Material | Steel |
| Maximum Outside Diameter | 51. |
| Adjustment Range | 1 |
| Adjustment Range | 1 grados |
| Castle Nut Included | No |
| Castle Nut Included | Non |
| Suspension Grade Type | Reemplazo estándar |
| Suspension Grade Type | Standard |
| Dust Boot Included | Oui |
| Dust Boot Included | Sí |
| Dust Boot Included | Yes |
| Ball Joint Assembly | Oui |
| Ball Joint Assembly | Sí |
| Ball Joint Assembly | Yes |
| Cotter Pin Hole | No |
| Cotter Pin Hole | Non |
| Grade Type | Reemplazo estándar |
| Grade Type | Standard replacement |
| Mounting Hole Quantity | 0 |
| Adjustable | Oui |
| Adjustable | Sí |
| Adjustable | Yes |
| Greaseable | No |
| Greaseable | Non |
| Stud Type | Roscado |
| Stud Type | Threaded |
| Mounting Type | Bolt on |
| Mounting Type | Con perno |
| Contenidos del paquete | 1 rótula |
This part fits 26 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2012 | Ford | Fusion | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2012 | Lincoln | MKZ | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2011 | Ford | Fusion | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2011 | Lincoln | MKZ | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2011 | Mercury | Milan | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2010 | Ford | Fusion | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2010 | Lincoln | MKZ | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2010 | Mercury | Milan | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2009 | Ford | Fusion | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2009 | Lincoln | MKZ | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2009 | Mercury | Milan | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2008 | Ford | Fusion | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2008 | Lincoln | MKZ | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2008 | Mazda | 6 | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2008 | Mercury | Milan | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2007 | Ford | Fusion | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2007 | Lincoln | MKZ | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2007 | Mazda | 6 | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2007 | Mercury | Milan | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2006 | Ford | Fusion | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2006 | Lincoln | Zephyr | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2006 | Mazda | 6 | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2006 | Mercury | Milan | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2005 | Mazda | 6 | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2004 | Mazda | 6 | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
| 2003 | Mazda | 6 | Front Upper | Adjusts Caster/Camber -1.00 Degree to +1.00 Degree |
* 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.