Delphi TC3777 Suspension Control Arm - Rear Right Upper

Delphi Rear Right Upper Control Arm

The Delphi TC3777 suspension control arm is a standard replacement for select Land Rover applications, including the LR3, LR4, and Range Rover Sport. Built with stamped construction, a coated finish, and rubber bushings, it is made for direct rear right upper suspension service where OE-style fit and consistent alignment matter.

Key Features

• Delphi TC3777 rear right upper suspension control arm
• Stamped steel construction with a coated black finish
• Rubber bushings included for suspension isolation
• Standard replacement grade for OE-style service
• No ball joint, grease fitting, or mounting hardware included
• Distance between mounting holes: 387.0

Detailed Description

Delphi applies OE-focused engineering to its aftermarket steering and suspension portfolio, and the TC3777 follows that approach with dimensional and material analysis for proper compatibility. It is built for the rear right upper position and uses black rubber bushings to help maintain suspension geometry while supporting a quiet, controlled ride. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. For Land Rover LR3, Range Rover Sport, and LR4 service, Delphi TC3777 provides a direct replacement option for worn upper control arm components.

What This Part Helps Address

• Rear suspension looseness or instability
• Clunking or knocking from worn control arm bushings
• Uneven tire wear caused by suspension geometry issues
• Excessive rear-end movement during braking or cornering
• Restoring alignment control on the rear right upper suspension

Installation Notes and Tips

Verify the rear right upper position before installation and compare the mounting-hole spacing to the original component. Because mounting hardware is not included, reuse or source the correct fasteners as needed. After installation, perform a professional wheel alignment to confirm suspension geometry on the Land Rover LR3, Range Rover Sport, or LR4.

Quality Assurance

Delphi tests suspension components for extreme temperature exposure and salt-spray resistance, and uses OE-level dimensional and material checks to support fit and durability. The TC3777 is engineered as a standard replacement control arm for consistent service on compatible Land Rover applications.