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DormanPart #: 521-959
Dorman 521-959 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper
⚙️ 10 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$57.76Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mazda, and Mercury, Escape, Mariner, and Tribute
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Suspension Control Arm and Ball Joint Assembly options
Dorman 521-959 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper
| Brand | Dorman |
| Part Number | 521-959 |
| Pre-Greased | Yes |
| Grease Fitting Included | Yes |
| Suspension Grade Type | Light |
| Bushings Included | Yes |
| Ball Joint Mounting Type | Press in |
| Ball Joint Stud Type | Threaded |
| Control Arm Material | Steel |
| Mounting Hardware Included | Yes |
| Mounting Hole Quantity | 1 |
| Adjustable | No |
| Control Arm Maximum Width | 288.5 |
| Control Arm Color | Black |
| Ball Joint Thread Diameter | 14 |
| Control Arm Maximum Length | 237 |
| Bushing Material | Rubber |
| Ball Joint Included | Yes |
| Ball Joint Installed | Yes |
| Control Arm Type | Stamped |
| Grade Type | Regular |
| Mounting Hole Diameter | 12.3 mm |
| Package Contents | Control arm and ball joint assembly |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2012 | Ford | Escape | Rear Left Upper | Original Design |
| 2011 | Ford | Escape | Rear Left Upper | Original Design |
| 2011 | Mazda | Tribute | Rear Left Upper | Original Design |
| 2011 | Mercury | Mariner | Rear Left Upper | Original Design |
| 2010 | Ford | Escape | Rear Left Upper | Original Design |
| 2010 | Mazda | Tribute | Rear Left Upper | Original Design |
| 2010 | Mercury | Mariner | Rear Left Upper | Original Design |
| 2009 | Ford | Escape | Rear Left Upper | Original Design |
| 2009 | Mazda | Tribute | Rear Left Upper | Original Design |
| 2009 | Mercury | Mariner | Rear Left Upper | Original Design |
* 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:
102-7870150807526064189L8Z5500BCA1590BCB40160CMS40156GS40156JTC7583RK621456TC6582
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.