Metrix Premium Front Left Lower Control Arm - Durable Replacement

In this review the Metrix Premium front left lower control arm is evaluated for drivers who need a direct-fit replacement for suspension repairs on compatible Hondas and Acuras. The bottom line: this control arm is aimed at DIY mechanics and independent shops that want a heavy-duty, OE-exceeding replacement part that is pre-greased and ready to install. Its biggest selling point is build quality and certification - manufactured to exceed OEM standards with IATF 16949 and ISO 9001 oversight - which makes it a sensible choice when longevity and fitment are priorities.

Key Features

• Compatibility: Fits 2004-2008 Acura TSX and 2003-2007 Honda Accord, providing a direct replacement to restore factory suspension geometry.
• Pre-greased: The arm ships pre-greased so bushings move smoothly out of the box and initial service intervals are reduced.
• Material: Cast iron construction offers rigidity and durability for street and light-duty driving conditions.
• OE interchangeability: Supplied with known OE/interchange numbers such as RK640290 and 51360SDAA01 to simplify parts matching.
• Quality standards: Manufactured under IATF 16949 and ISO 9001, indicating consistent production controls and traceability.
• Warranty: Backed by a 3 year / 36,000 mile limited warranty from installation, which helps protect against premature failure.

Who It's For

This control arm is best for owners of the specified Acura TSX and Honda Accord model years who want a rugged, OEM-beating replacement without sourcing a dealer part. It suits home mechanics comfortable with suspension work and independent shops that require a part matching OE fit and finish.

It is less suited for vehicles outside the listed model years or for drivers seeking lightweight aftermarket racing parts; those buyers should look for application-specific options or aluminum performance arms rather than this cast iron replacement.

Pros & Cons

Pros

• Pre-greased bushings reduce initial maintenance and speed installation.
• Cast iron construction feels solid and is likely to last longer than cheaper stamped alternatives.
• Exceeds OEM standards with IATF 16949 and ISO 9001 manufacturing, increasing confidence in consistency.
• Comes with a 3 year / 36,000 mile limited warranty for added peace of mind.

Cons

• Cast iron is heavier than aluminum performance arms, so it is not aimed at weight-sensitive upgrades.
• Only supplied as a single arm in the box, so buyers replacing both sides must order two units.

Specifications

Fitment	2004-2008 Acura TSX; 2003-2007 Honda Accord
Position	Front left lower control arm
Material	Cast iron
Quantity in box	1
OE / Interchange	RK640290, CMS20406, 520-693, 51360SDAA01
Certifications	IATF 16949, ISO 9001
Warranty	3 Year / 36,000 miles limited

Our Verdict

The Metrix Premium front left lower control arm is a practical, value-oriented replacement for the listed Acura and Honda models, combining durable cast iron construction with pre-greased bushings and rigorous production standards. For owners wanting a long-lasting, direct-fit part backed by a multi-year warranty, this control arm represents solid value; buyers seeking lightweight performance parts should consider alternatives.

Frequently Asked Questions

Does this control arm fit my Accord or TSX?
It fits 2003-2007 Honda Accord and 2004-2008 Acura TSX models; verify with OEM interchange numbers before ordering.

Is the part ready to install out of the box?
Yes, the arm ships pre-greased to provide smoother initial movement and reduce immediate servicing needs.

What warranty is included?
The product includes a 3 year / 36,000 mile limited warranty from the date of installation.