Delphi Suspension Control Arm and Ball Joint Assembly P/N:TC4018
$204.99
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Keep your front suspension tracking true with the Delphi control arm and ball joint assembly (TC4018), a front right lower unit that installs as a direct-fit replacement for the 2015-2019 Hyundai Sonata and 2017-2020 Kia Optima. It locates the wheel, pivots through suspension travel, and its integrated ball joint lets the knuckle steer and articulate.
Tested to the extreme: withstands temperatures below -40°C and over 120°C plus 720 hours of salt spray, backed by dimensional and material analysis for compatibility between the OE and aftermarket part.
Verified integrity: 100% crack detection and ultrasonic flaw detection so materials match OE specifications.
Precision joint: ball studs machined to micron tolerances for durability and smooth joint operation, with robot welding for consistent quality.
Anti-corrosion protection: applied to each part for corrosion prevention and enhanced appearance.
Signs the original may need replacing include clunking or knocking over bumps, loose or wandering steering, and uneven tire wear. Replacing a worn Hyundai Sonata lower control arm restores secure wheel location if the arm or its ball joint is the cause. Sold individually.
It is a direct-fit replacement for the front right lower position on the 2015-2019 Hyundai Sonata and 2017-2020 Kia Optima. See the Buyer's Guide tab to confirm your vehicle.
Is this a Hyundai Sonata lower control arm?
Yes. TC4018 is the front right lower control arm with an integrated ball joint for the listed Sonata and Kia Optima applications.
Does the Kia Optima control arm include the ball joint?
Yes. The ball joint is built into the assembly, so you install the control arm and ball joint together as one unit.
What are signs I need a Hyundai Sonata control arm replacement?
Clunking or knocking over bumps, loose or wandering steering, and uneven tire wear can indicate a worn control arm or ball joint. Diagnose the cause before replacing.
Should I replace both sides at once?
This assembly is sold individually. Replacing the opposite side as a matched pair is a common best practice for balanced, even suspension performance, though not required.
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Delphi
Delphi Suspension Control Arm and Ball Joint Assembly P/N:TC4018
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WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
