Delphi TC6820 Suspension Ball Joint - Front Left Lower

OE-Style Front Left Lower Ball Joint

Delphi TC6820 is a front left lower suspension ball joint built for OE-style fit and function. It serves as a direct replacement for select Hyundai and Kia applications, including the Hyundai Tucson, Hyundai Sonata, Kia Optima, and Kia Sportage.

With a steel body, included dust boot, and bolt-on mounting design, this ball joint is built for precise suspension service on the front left lower position. Delphi applies OE-level dimensional and material analysis to help ensure proper compatibility between the original part and the aftermarket replacement.

Key Features

• Part number: TC6820
• Front left lower suspension ball joint
• Steel construction with black finish
• Dust boot included with chloroprene rubber material
• Bolt-on mounting type with mounting hardware and nuts included
• Pinch-style stud design
• Non-greaseable, non-adjustable design
• OE-focused testing for temperature and corrosion resistance

Detailed Product Overview

Delphi TC6820 is engineered for vehicles that require a front left lower ball joint with OE-style dimensions and mounting geometry. It features a 3-hole bolt-on design, a 18.0 mm stud thread diameter, and a dust boot to help protect the joint from road contamination. The steel construction and corrosion-focused validation support dependable suspension service in demanding driving conditions. This part cross-references MOOG Chassis Products K500364 for the same application.

Fits 2017-2022 Kia Sportage, front left lower. Fits 2016-2021 Hyundai Tucson, front left lower. Fits 2016-2020 Kia Optima, front left lower. Fits 2015-2019 Hyundai Sonata, front left lower.

Common Repair Symptoms

• Front-end clunking or popping over bumps
• Loose or wandering steering feel
• Uneven tire wear from worn suspension joints
• Excessive play in the front left lower suspension connection
• Noise during braking or turning from a worn ball joint

Installation Notes

Verify the front left lower position before installation and confirm bolt-hole spacing, stud style, and thread specifications against the original part. Because this is a bolt-on design, proper torque on the mounting bolts and nuts is important for secure installation. Inspect the surrounding control arm and suspension components for wear before completing the repair.

Quality Assurance

Delphi validates its OE and aftermarket steering components through temperature cycling below -40 degrees C and above 120 degrees C, plus extended salt-spray exposure for corrosion resistance. The TC6820 is backed by Delphi’s OE-focused engineering approach for consistent fit and performance.