Suspensia X05CJ1127 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Suspensia X05CJ1127 Front Left Lower Control Arm

Suspensia X05CJ1127 is a front left lower suspension control arm and ball joint assembly built for direct OE fit and OE look. It uses forged aluminum construction, comes pre-greased, and includes bushings and a dust boot for a complete service replacement on select BMW applications.

Key Features

• Forged aluminum control arm construction
• Front left lower position
• Pre-greased assembly
• Rubber bushings and rubber dust boot included
• Black bushing and boot finish
• Lock nut included
• Stud thread size: M14 x 1.5
• Wrench size: 21 mm

Detailed Description

This Suspensia control arm and ball joint assembly is engineered for BMW front suspension service where OE-style fit and geometry matter. It is compatible with 2019-2023 BMW 330i and 330i xDrive, 2021-2023 BMW 330e and 330e xDrive, 2021-2023 BMW 430i, 2020-2023 BMW M340i, 2021-2023 BMW M440i, and 2023 BMW M240i in the front left lower position. Part number X05CJ1127 is also cross-referenced to Delphi TC4389 for the same application.

Suspensia manufactures chassis components in a fully automated OE manufacturing environment and builds parts to OE or better quality standards. The assembly uses forged aluminum for strength and reduced unsprung weight, with rubber bushings and a rubber dust boot to support smooth articulation and joint protection. Part number X05CJ1127 is a direct-fit replacement for BMW 330i, BMW 430i, and related models listed above.

What It Helps Fix

• Front-end clunking or knocking from a worn lower control arm
• Loose or inconsistent steering feel
• Uneven tire wear caused by suspension play
• Excessive vibration from worn bushings or ball joint wear
• Suspension noise during braking, turning, or road impacts

Installation Notes and Tips

Install on the front left lower suspension position only. Verify stud thread size M14 x 1.5 and wrench size 21 mm before installation. Because this assembly is pre-greased and includes bushings and a dust boot, it is ready for replacement service, but alignment should be checked after suspension work is completed.

Quality Assurance

Suspensia chassis parts are produced in an IATF 16949:2016, ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and ISO 50001:2018 certified facility with OE-fit manufacturing standards. This supports consistent build quality for BMW suspension repair and replacement.