Front Lower Control Arm with Ball Joint for 2003-2008 Infiniti FX35

In this review of the Front Lower Control Arm with Ball Joint for 2003-2008 Infiniti FX35 and FX45, the bottom line is simple: this is a practical, direct-replacement control arm for drivers who need OE-style fit and solid value. The reviewer found it aimed at DIY mechanics and independent shops that want a pre-assembled component that matches original geometry and reduces install time. Fitment and build quality are the single biggest reasons to consider this part, while those who need adjustable or greasable joints should note its non-serviceable design.

Key Features

• Direct replacement: Pre-assembled to match the original lower control arm geometry so you can swap it in without modifications and save installation time.
• Cast iron construction: Durable cast iron body provides a rigid mounting point that resists bending under normal driving loads.
• Ball joint mounting: Machined ball joint mounting ensures correct alignment and secure fit for the vehicle's suspension system.
• Includes bushings: Supplied with bushings installed so the arm is ready to fit and reduces the number of parts to press in during a repair.
• Wide compatibility references: Multiple reference numbers help confirm fit for the 2003-08 Infiniti FX35 and FX45 front driver side lower application.
• DIY support: The brand provides video resources to help first-time installers view before they do and complete the job with confidence.

Who It's For

This control arm is aimed at DIY enthusiasts, independent repair shops, and owners of 2003-2008 Infiniti FX35 and FX45 models who need a reliable driver side lower arm that matches original fitment. It is particularly useful for those who want a pre-assembled unit to reduce shop time and avoid sourcing individual bushings or a separate ball joint.

Drivers who require adjustable suspension geometry, a greasable ball joint, or an OEM-labeled part may want to look elsewhere, since this arm is non-adjustable and the ball joint is not serviceable. If long-term heavy-duty or motorsport use is expected, consider higher-spec or adjustable aftermarket options.

Pros & Cons

Pros

• Solid fit and finish that customers report matches original parts and installs cleanly.
• Pre-assembled with bushings, which saves time during replacement and simplifies the job for DIYers.
• Cast iron construction offers dependable rigidity for normal driving conditions.
• Extensive reference numbers and documentation make confirming compatibility straightforward.

Cons

• Ball joint is non-greasable and some users have reported ball joint damage, so long-term serviceability is limited.
• Not adjustable, so it will not suit installs that require alignment tuning beyond the vehicle's factory settings.

Specifications

Application	2003-2008 Infiniti FX35 and FX45, front driver side lower
Material	Cast iron control arm
Ball joint mounting	Machined (non-greasable)
Adjustable	No
Bushings	Included
Reference numbers	RK620509; 54501-CG200; 101-6143; 260-5704 and others

Our Verdict

This front lower control arm is a practical, cost-effective replacement for 2003-08 Infiniti FX35 and FX45 owners who want a direct-fit, pre-assembled unit that restores proper suspension geometry. It offers good value and ease of installation for DIYers and independent shops, but those needing a greasable ball joint or adjustable arm should consider other aftermarket choices.

Frequently Asked Questions

Will this part fit my FX35/FX45?
It is designed for 2003-2008 Infiniti FX35 and FX45 front driver side lower applications; confirm fitment against your vehicle using the reference numbers and the compatibility chart.

Is the ball joint serviceable or greasable?
The ball joint mounting is machined and the joint is not greasable; some customers have reported ball joint issues over time.

Are bushings included with the arm?
Yes, the control arm is supplied with bushings installed so the unit is ready for direct replacement installation.