TRQ Front Upper Control Arm w/Ball Joint RH for Mercedes CL S Class

In this review the TRQ Front Upper Control Arm w/Ball Joint (passenger right RH) is evaluated for owners of Mercedes CL and S Class models who need a direct fit replacement. The bottom line is that this control arm delivers a reliable, OE-style fit and ease of installation for DIY mechanics and professional installers alike, making it a sensible choice when the original arm shows wear. The reviewer found the part to match original mounts and finish, offering strong value for those avoiding dealer pricing while wanting a pre-assembled component that reduces installation time and guesswork.

Key Features

• Direct fit replacement: Pre-assembled with ball joint to ensure the part mounts precisely where the original did, eliminating the need for fabrication.
• Wide vehicle coverage: Compatible with many Mercedes models including S550, S63 AMG, CL550 and CL63 AMG across 2007-2014 model years, reducing the chance of a fitment mismatch.
• Reference compatibility: Multiple reference numbers provided to help confirm fit with OEM cross references and vehicle parts lookups.
• Ease of installation: Designed to save time on the bench with pre-installed components so installers spend less time transferring parts.
• DIY support: Backed by the brand's DIY video resources to guide users through removal and installation steps when a video is available.

Who It's For

This control arm is aimed at Mercedes owners and independent shops replacing a worn or damaged front passenger upper control arm on compatible CL and S Class cars from approximately 2007 through 2014. It is particularly useful for DIYers who prefer a pre-assembled unit and want guidance from online installation videos.

Those who rely on dealer warranty support or need specialized OEM-only parts for restoration projects may want to compare dealer options first, but drivers seeking a cost-effective, direct-fit replacement that matches original geometry will find this a practical choice.

Pros & Cons

Pros

• Direct fit with ball joint installed makes replacement straightforward and fast for technicians and experienced DIYers.
• Good compatibility across many Mercedes S and CL models, helping ensure the correct part for listed years.
• Positive customer feedback on fit, build quality, and value when compared to dealer pricing.

Cons

• Some users report isolated issues with the ball joint; buyers should inspect the joint on arrival and during installation.

Specifications

Brand	TRQ
Position	Front passenger side upper (RH)
Included component	Control arm with ball joint pre-assembled
Compatible models	Mercedes S550, S63 AMG, S600, S65 AMG, S350, S400, S450; CL550, CL63 AMG, CL600, CL65 AMG
Model years	2007-2014 (varies by model)
Reference numbers	Includes RK621128; 2113304407; 2213300407; 2213309007 and others

Our Verdict

The TRQ Front Upper Control Arm w/Ball Joint RH is a practical, cost-effective replacement for owners of compatible Mercedes CL and S Class cars who want a direct-fit component and the option of DIY installation guidance. It matches original fit points, reduces installation time with its pre-assembled design, and represents good value compared with dealer alternatives, though buyers should check the ball joint on delivery.

Frequently Asked Questions

Will this control arm fit my S550 from 2010?
Yes, it is listed as compatible with the 2007-13 Mercedes Benz S550 front passenger upper control arm position.

Is the ball joint included and pre-installed?
Yes, the control arm is supplied with the ball joint pre-assembled to simplify installation.

What if the part does not match my vehicle?
Confirm fitment using the reference numbers and your vehicle details; if it does not match, compare the full compatibility chart before installation.