Dorman 521-878 Suspension - Control Arm and Ball Joint Assembly
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$192.43
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Product Description
This suspension control arm and ball joint assembly is a direct replacement for the original equipment on specific vehicle applications. An industry-leading evaluation process ensures a smooth ride, directional stability and predictable dynamics.
- Trustworthy replacement - this control arm and ball joint assembly directly replaces the original assembly on specific vehicle applications
- Complete repair - each assembly includes pre-installed ball joint and bushings, saving time and labor
- Quality engineering - underwent industry-leading testing to ensure a smooth, stable and safe ride
- Durably designed - additional coatings offer long-lasting rust and corrosion resistance
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2013 | Chevrolet | Suburban 2500 | Front Right Lower | ||
| 2013 | GMC | Yukon XL 2500 | Front Right Lower | ||
| 2012 | Chevrolet | Suburban 2500 | Front Right Lower | ||
| 2012 | GMC | Yukon XL 2500 | Front Right Lower | ||
| 2011 | Chevrolet | Suburban 2500 | Front Right Lower | ||
| 2011 | GMC | Yukon XL 2500 | Front Right Lower | ||
| 2010 | Chevrolet | Silverado 2500 (Mexico) | Front Right Lower | ||
| 2010 | Chevrolet | Silverado 2500 HD | Front Right Lower | ||
| 2010 | Chevrolet | Silverado 3500 (Mexico) | Front Right Lower | ||
| 2010 | Chevrolet | Silverado 3500 HD | Front Right Lower | ||
| 2010 | Chevrolet | Suburban 2500 | Front Right Lower | ||
| 2010 | GMC | Sierra 2500 HD | Front Right Lower | ||
| 2010 | GMC | Sierra 3500 HD | Front Right Lower | ||
| 2010 | GMC | Yukon XL 2500 | Front Right Lower | ||
| 2009 | Chevrolet | Silverado 2500 (Mexico) | Front Right Lower | ||
| 2009 | Chevrolet | Silverado 2500 HD | Front Right Lower | ||
| 2009 | Chevrolet | Silverado 3500 (Mexico) | Front Right Lower | ||
| 2009 | Chevrolet | Silverado 3500 HD | Front Right Lower | ||
| 2009 | Chevrolet | Suburban 2500 | Front Right Lower | ||
| 2009 | GMC | Sierra 2500 HD | Front Right Lower | ||
| 2009 | GMC | Sierra 3500 HD | Front Right Lower | ||
| 2009 | GMC | Yukon XL 2500 | Front Right Lower | ||
| 2009 | Hummer | H2 | Front Right Lower | ||
| 2008 | Chevrolet | Silverado 2500 (Mexico) | Front Right Lower | ||
| 2008 | Chevrolet | Silverado 2500 HD | Front Right Lower | ||
| 2008 | Chevrolet | Silverado 3500 (Mexico) | Front Right Lower | ||
| 2008 | Chevrolet | Silverado 3500 HD | Front Right Lower | ||
| 2008 | Chevrolet | Suburban 2500 | Front Right Lower | ||
| 2008 | GMC | Sierra 2500 HD | Front Right Lower | ||
| 2008 | GMC | Sierra 3500 HD | Front Right Lower | ||
| 2008 | GMC | Yukon XL 2500 | Front Right Lower | ||
| 2008 | Hummer | H2 | Front Right Lower | ||
| 2007 | Chevrolet | Silverado 1500 HD Classic | Front Right Lower | ||
| 2007 | Chevrolet | Silverado 2500 (Mexico) | Front Right Lower | ||
| 2007 | Chevrolet | Silverado 2500 HD | Front Right Lower | ||
| 2007 | Chevrolet | Silverado 2500 HD Classic | Front Right Lower | ||
| 2007 | Chevrolet | Silverado 3500 (Mexico) | Front Right Lower | ||
| 2007 | Chevrolet | Silverado 3500 Classic | Front Right Lower | ||
| 2007 | Chevrolet | Silverado 3500 HD | Front Right Lower | ||
| 2007 | Chevrolet | Suburban 2500 | Front Right Lower | ||
| 2007 | GMC | Sierra 1500 HD Classic | Front Right Lower | ||
| 2007 | GMC | Sierra 2500 HD | Front Right Lower | ||
| 2007 | GMC | Sierra 2500 HD Classic | Front Right Lower | ||
| 2007 | GMC | Sierra 3500 Classic | Front Right Lower | ||
| 2007 | GMC | Sierra 3500 HD | Front Right Lower | ||
| 2007 | GMC | Yukon XL 2500 | Front Right Lower | ||
| 2007 | Hummer | H2 | Front Right Lower | ||
| 2006 | Chevrolet | Avalanche 2500 | Front Right Lower | ||
| 2006 | Chevrolet | Silverado 1500 HD | Front Right Lower | ||
| 2006 | Chevrolet | Silverado 2500 (Mexico) | Front Right Lower |
Product Specifications
| Adjustable: | No |
|---|---|
| Ball Joint Included: | Yes |
| Ball Joint Installed: | Yes |
| Ball Joint Stud Type: | Threaded |
| Ball Joint Thread Diameter: | 14 mm |
| Bushing Material: | Rubber |
| Bushings Included: | Yes |
| Control Arm Color: | Black |
| Control Arm Material: | Steel |
| Control Arm Maximum Length: | 237 mm |
| Control Arm Maximum Width: | 288.5 mm |
| Control Arm Type: | Casting/Forged |
| Grade Type: | Standard |
| Grease Fitting Included: | No |
| Mounting Hardware Included: | Yes |
| Mounting Hole Diameter: | 12.3 mm |
| Mounting Hole Quantity: | 1 |
| Package Contents: | Control Arm and Ball Joint Assembly |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Pre-Greased: | Yes |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 12475322 | GENERAL MOTORS |
| 12475476 | GENERAL MOTORS |
| 15103879 | GENERAL MOTORS |
| 15103881 | GENERAL MOTORS |
| 20832023 | GENERAL MOTORS |
| 20832025 | GENERAL MOTORS |
| 25905441 | GENERAL MOTORS |
| 25909327 | GENERAL MOTORS |