Delphi TC1491 Suspension Control Arm and Ball Joint Assembly - Front Right Upper

OE-Style Front Right Upper Control Arm

Delphi TC1491 is a standard replacement suspension control arm and ball joint assembly for the front right upper position. It is built for Mercedes-Benz applications including E-Class and SL/CLS models, with OE-focused dimensional and material analysis to support proper fit and suspension geometry.

For drivers servicing a Mercedes-Benz E320, E350, E550, E63 AMG, SL500, or CLS550, this assembly provides a direct replacement path for worn upper control arm components. Delphi TC1491 is pre-greased and supplied with bushings and mounting hardware for a cleaner service process.

Key Features

• Front right upper suspension control arm and ball joint assembly
• Stamped steel construction with gray finish
• Pre-greased design; no grease fitting included
• Bolt-in ball joint mounting with threaded stud
• Includes bushings made from natural rubber (NR)
• Mounting hardware included
• Standard replacement grade for light-duty suspension applications
• Non-adjustable, non-greaseable design

Detailed Description

Delphi TC1491 is engineered as an OE-style replacement for the front right upper suspension position on select Mercedes-Benz vehicles. The stamped steel arm uses a bolt-in ball joint mounting type and a threaded stud, with four mounting holes and natural rubber bushings to match the original suspension layout. Delphi applies OE expertise to its aftermarket steering and suspension portfolio, with testing that includes extreme temperature exposure and salt-spray corrosion evaluation to help verify durability.

This part cross-references Dorman - OE Solutions 522-892 for the same application. It also aligns with Mercedes-Benz OE references commonly used on E-Class, CLS, and SL chassis applications. Part number TC1491 is a practical choice when replacing a worn upper control arm on Mercedes-Benz E320, SL550, or CLS63 AMG front suspension systems.

What It Helps Address

• Front-end clunking or knocking from a worn upper control arm
• Uneven tire wear caused by suspension geometry changes
• Loose or unstable steering feel at the front right corner
• Excessive suspension play from deteriorated bushings or ball joint wear
• Restoring alignment stability after suspension service

Installation Notes and Tips

Verify the vehicle’s front right upper position before installation and confirm fitment by year, make, and model. Because this assembly is non-adjustable, a professional wheel alignment is recommended after replacement. Inspect adjacent suspension components, including lower arms, tie rods, and control arm mounting points, for wear that could affect final alignment.

Quality Assurance

Delphi uses OE-based dimensional and material analysis to support compatibility between original and aftermarket parts. The assembly is tested for temperature extremes below -40 degrees C and above 120 degrees C, and it is exposed to 720 hours of salt spray to evaluate corrosion resistance and durability.