Delphi Control/Trailing Arm Upper - TC3777
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Product Information
Full details
The Delphi Control/Trailing Arm Upper - TC3777 is a direct replacement part for Land Rover Discovery and Range Rover Sport vehicles, designed for the rear axle's right upper position. Its key benefit is restoring precise suspension geometry and stability, ensuring optimal handling and tire wear. A potential caveat is that it requires professional installation due to its critical role in the suspension system and does not include a ball joint, which may need to be sourced separately. This sheet steel control arm, with dimensions 466 mm length, 180 mm height, and 466 mm width, is built for durability and precise fitment.
All features
| Model Part Number | TC3777 |
|---|---|
| Brand | Delphi |
Extended Product Information
FAQs
Does the Delphi TC3777 come with a ball joint?
No, the Delphi TC3777 control arm is supplied without a ball joint. This component needs to be purchased separately and installed during the replacement process.
What vehicles is the TC3777 compatible with?
This control arm is compatible with Land Rover Discovery and Range Rover Sport models, specifically for the rear upper right suspension position.
What are the main dimensions of the TC3777?
The control arm has a length of 466 mm, a height of 180 mm, and a width of 466 mm.
Is this part made of steel?
Yes, the Delphi TC3777 is constructed from durable sheet steel.
What is the paired article number for this control arm?
The paired article number for the TC3777 is TC3776.
Can I install this myself?
While possible, installation requires specialized tools and knowledge of suspension systems. Professional installation by a qualified mechanic is strongly recommended for safety and proper function.
What OEM part numbers does this replace?
It is compatible with OEM references such as LR010523 and LR010526, among others.
Troubleshooting
Vehicle pulling to one side after installation
This indicates a need for a professional wheel alignment. The suspension geometry has been altered by the component replacement.
Noise from the rear suspension over bumps
Ensure the control arm is securely fastened and that any associated bushings or ball joints (if installed separately) are correctly seated and tightened. Re-inspect for wear on related components.
Uneven tire wear continues after replacement
Confirm that a wheel alignment was performed post-installation. Also, check other suspension components for wear or damage that could be affecting alignment.
Pros and Cons
Pros
- Designed for optimal fit and function in Land Rover vehicles.
- Made from durable sheet steel for extended lifespan.
- Meets or exceeds OEM specifications for reliable performance.
- Restores proper suspension alignment and stability.
- Genuine Delphi part offers assurance of quality.
Cons
- Ball joint not included, requiring separate purchase and installation.
- Requires specialized tools and knowledge for proper installation.
- Specific to rear upper right position, not a universal fit.
- May require suspension alignment after installation.
Setup, Compatibility & Care
Compatibility: This control arm is specifically designed for the rear axle, upper right position, of Land Rover Discovery and Range Rover Sport models. Always verify compatibility with your vehicle's specific year and model, referencing OEM numbers like LR010523 and LR010526.
Setup: Installation of a control arm is a complex procedure that requires lifting the vehicle, removing the wheel, and disconnecting suspension components. It is highly recommended that this part be installed by a qualified mechanic using appropriate tools. Due to the critical nature of suspension components, professional installation ensures safety and proper alignment. Ensure you have the correct replacement ball joint if required.
Care: As a solid metal component, the Delphi TC3777 control arm requires minimal direct care. However, regular inspection of surrounding suspension components (bushings, ball joints, and other arms) during routine maintenance is advised. Keeping the undercarriage clean can help prevent corrosion and prolong the life of all suspension parts.