Dorman 526-643 Front Left Lower Control Arm w/ Ball Joint 15-21 Subaru WRX STI
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
$199.30
Select your vehicle at the top of the page to check fitment.
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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.
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
Vehicle Fitment
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2019-2021 | Subaru | WRX | Front Left Lower | |
| 2015-2016 | Subaru | WRX | Front Left Lower | |
| 2015-2021 | Subaru | WRX STI | Front Left Lower |
Please confirm the part number and your vehicle's year, make, model and engine before ordering. Questions? Message us with your VIN and we'll check fitment for you.
Specifications
| Brand | Dorman |
|---|---|
| Part Number | 526-643 |
| UPC | 889245210524 |
| Placement | Front, Left, Lower |
| Thread Direction | Clockwise (Right) |
| Length | 361.5 mm |
| Mounting Hardware Included | Yes |
| Adjustable | No |
| Bushing Material | Rubber |
| Bushing Inside Diameter | 12.2 mm; 14.5 mm |
| Bushing Length | 57 mm; 80 mm |
| Bushing Color | Black |
| Finish | Uncoated |
| Mounting Hole Quantity | 3 |
| Boot Color | Black |
| Cone Outside Diameter | 15.5 mm |
| Bearing Material | Polymer |
| Mounting Hole Diameter | 12.2 mm; 14.5 mm |
| Bore Diameter | 12.2 mm; 14.5 mm; 12.5 mm |
| Reinforced | No |
| Pre-Greased | Yes |
| Castle Nut Included | Yes |
| Grease Fitting Included | No |
| Bushings Included | Yes |
| Dust Boot Included | Yes |
| Ball Joint Mounting Type | Screw In |
| Ball Joint Stud Type | Threaded |
| Ball Joint Included | Yes |
| Control Arm Construction | Casting/Forged |
| Control Arm Material | Aluminum |
| Cotter Pin Included | Yes |
| Grade Type | Standard Replacement |
| Locking Nut Included | Yes |
| Greaseable | No |
| Control Arm Maximum Width | 362 mm |
| Control Arm Color | Black |
| Ball Joint Stud Length | 16 mm |
| Control Arm Maximum Length | 361.5 mm |
| Steering Type | Power |
| Thread Size | 12 mm; 1.25 mm |
| Distance Between Bushings | 362 mm |
| Attachments Included | Yes |
| Ball Joint Installed | Yes |
| Ball Joint Thread Diameter | 12 mm; 1.25 mm |
| Control Arm Type | Forged |
| End 1 Thread Diameter | 14 mm |
| End 1 Thread Pitch | 1.25 mm |
| Package Contents | 1 Control Arm; 1 Ball Joint; 1 Nut; 1 Cotter Pin; 1 Washer |
| Set | No |
| Suspension Grade Type | Standard Replacement |
| Thread Diameter | 12 mm |
| Thread Pitch | 1.25 mm |
| Country of Origin | Thailand |
| Warranty | Limited Lifetime |
OE & Interchange Numbers
| 20202VA011 | Subaru (OE) |
|---|---|
| 20202VA010 | Subaru (OE) |
| CA14984 | Interchange |
| RK623750 | Interchange |