Dorman® 521-306 - Front Passenger Side Lower Non-Adjustable Control Arm and Ball Joint Assembly

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Replaces Original (OE) Part #:4013A010, 4013A428, 4013A282
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Product Details

Front Passenger Side Lower Non-Adjustable Control Arm and Ball Joint Assembly (521-306) by Dorman®. Quantity: 1 per Pack. Rigorously tested for sustained, secure performance by a team of product and quality engineers, Dorman's Control Arm and Ball Joint Assembly is designed for passenger safety. Dorman industry-leading evaluation process ensures a smooth ride, directional stability, and agile handling.


Material: Steel
Ball Joint Stud Type: Pinch Bolt
Attachment Type: Pressed
Grade Type: Standard Replacement


  • Ball joints included for a complete installation, saving time and labor
  • Direct replacement for a trouble-free installation
  • Manufactured for safety and reliability


  • (1) Control Arm and Ball Joint Assembly
  • Rubber Bushing

Control arms are the part of the suspension system, with the help of springs and shock absorbers, ensure that bumps and other road obstacles are absorbed rather than being passed on to the frame of the vehicle and its passengers. The control arm is designed to move up and down when the car encounters potholes, speed bumps, etc., while still maintaining a straight, perpendicular relation to the road. Hard usage and even a minor encounter with a curb or deep pothole can bend, crack, or otherwise damage a control arm, causing poor handling and inaccurate wheel alignment that can result in uneven tire wear.

If you need a solid control arm, Dorman offers you the product that is a direct replacement for the factory part but costs less. The Dorman control arm will look, function, and install exactly the same as the original. Rigorously tested for reliable and long-lasting performance by a team of experienced engineers, the product provides a smooth ride, directional stability, and agile handling. The control arm features a steel, aluminum, or iron construction for exceptional durability and is powder-coated or painted for maximum rust and corrosion resistance. The unit comes with ball joints and bushings where applicable.

Dorman Products® is well-known as a leader in providing quality auto parts to the aftermarket. They have earned their reputation for excellence from over three decades of experience in providing automotive replacement parts, fasteners and service line products primarily for the automotive aftermarket. Their prestigious position stems from a unique combination of application expertise, innovative product design, and breadth of product offerings, many of which are not conveniently or economically available elsewhere.

California Residents

WARNING Cancer and Reproductive Harm.

Part Number:
Alternate MPN:
OE Numbers:
4013A010, 4013A428, 4013A282


  • Hybrid battery – fleet: 12 months from the date of purchase
  • Hybrid battery – non-fleet: 36 months from the date of purchase
  • Manifold Converters: 60 months or 50,000 miles from the date of purchase
  • Heavy Duty DPF / DOC: 24 months from the date of purchase
  • Light Duty DPF / DOC: 24 months or 36,000 miles from the date of purchase
  • Heavy Duty EGR Coolers: 36 months from the date of purchase
  • Light Duty EGR Coolers: Limited Lifetime
  • All other products: Limited Lifetime

Dorman Products warrants that the product is free from defects in material and workmanship under normal use and service for the period stated above. Dorman will replace any of its products that in Dorman's reasonable determination does not comply with the foregoing warranty. This warranty becomes null and void if the damage is caused by: misuse, abuse or accident; the attachment of any unauthorized accessory; alteration to the product; improper installation; exposure to harsh weather and/or chemicals; or lack of proper maintenance. This warranty also becomes null and void if the product is opened or any sticker is tampered with, broken, or missing, or if the damage is caused by any other condition that is beyond the control of Dorman Products.

In all cases, Dorman shall not be responsible for any type of incidental, consequential, or special damages. All other warranties, including the implied warranties of fitness for a particular purpose and the implied warranty of merchantability, are excluded.

By accepting this product, you hereby waive and release any claim now or hereafter existing against Dorman Products, its employees, officers, directors, agents and customers, on account of any and all claims, demands, suits, causes of action and all legal proceedings, whether civil or criminal, damages, losses, liabilities, (including, but not limited to, strict liability in tort), obligations, penalties, judgments or fines and other sanctions.

Federal and/or state laws may provide you with other warranties for this product. Some states do not allow the exclusion or limitation of incidental or consequential damages.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

Lancer 2007-2014
Outlander 2007-2013
Outlander Sport 2011-2013


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Dorman® 521-306 - Front Passenger Side Lower Non-Adjustable Control Arm and Ball Joint Assembly
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