Suspensia X01LA0139 Suspension Control Arm - Rear Left Upper Rearward

Rear Left Upper Rearward Control Arm for Audi

Suspensia X01LA0139 is a rear left upper rearward suspension control arm built for select Audi applications. It uses a sheet metal construction with a corrosion-resistant finish and includes a bushing for direct replacement service on the rear suspension.

Key Features

• Part number: X01LA0139
• Rear left upper rearward suspension control arm
• Sheet metal construction with black corrosion-resistant finish
• Bushing included
• Non-adjustable, non-greaseable design
• No grease fitting, no mounting hardware included
• Maximum length: 18.504 in; maximum width: 5.512 in

Detailed Description

Suspensia X01LA0139 is engineered for rear suspension service on Audi A4, Audi A4 allroad, Audi A4 Quattro, Audi A5 Quattro, Audi A5 Sportback, Audi S4, and Audi S5 applications. This rear left upper rearward control arm is manufactured in Turkey in IATF16949 certified factories, reflecting the production standards used by ISC Industries for OE Tier 1 and Tier 2 supply programs. The corrosion-resistant finish helps protect the arm in underbody environments, while the included bushing supports a complete replacement of the worn suspension link. This part cross-references Audi OE number 8W0505397F for the same application.

Vehicle Fitment

• Fits 2017-2025 Audi A4 allroad, rear left upper rearward.
• Fits 2017-2024 Audi A4 Quattro, rear left upper rearward.
• Fits 2018-2024 Audi A5 Quattro, rear left upper rearward.
• Fits 2018-2024 Audi A5 Sportback, rear left upper rearward.
• Fits 2018-2024 Audi S4, rear left upper rearward.
• Fits 2018-2024 Audi S5, rear left upper rearward.
• Fits 2018-2024 Audi S5 Sportback, rear left upper rearward.
• Fits 2017-2020 Audi A4, rear left upper rearward.

Common Repair Uses

• Rear suspension clunking from a worn control arm bushing
• Uneven rear wheel alignment caused by a damaged link
• Excessive rear suspension play or looseness
• Corrosion-related failure of the original rear control arm
• Restoring rear suspension geometry on Audi A4 and Audi A5 platform vehicles

Installation Notes and Tips

Replace the control arm on the correct rear left upper rearward position only. Because mounting hardware is not included, reuse or source the required fasteners separately as needed. Final torque should be set with the suspension at normal ride height to help prevent premature bushing stress. A professional alignment is recommended after installation.

Quality Assurance

Suspensia parts are produced in IATF16949 certified factories in Turkey under ISC Industries, a supplier to major OE programs including Ford, Fiat/Chrysler, Volkswagen Group, and Renault/Nissan. Part number X01LA0139 is built to meet the demands of rear suspension replacement on Audi A4, Audi A4 allroad, and related Audi performance and quattro models.