TRQ Rear Left Upper Control Arm with Ball Joint - Direct Fit

In this review the TRQ Rear Left Upper Control Arm with Ball Joint is evaluated for owners of 2009-2012 Ford Escape, 2009-2011 Mercury Mariner and 2009-2011 Mazda Tribute vehicles looking for a direct fit OE replacement. The bottom line: this assembly is aimed at DIY mechanics and independent shops that need a straightforward swap to restore rear upper suspension geometry; its single biggest reason to buy is that it mirrors the original mounting points and reference numbers so replacement is simple and avoids alignment surprises after installation.

Key Features

• Direct Fit: Installs using factory mounting locations so it removes the guesswork and usually requires no modification to existing components.
• OE Replacement Assembly: Includes the control arm and press-in ball joint as a single unit to simplify the repair and reduce parts matching errors.
• Vehicle Specific Fitment: Clearly listed compatibility for Ford Escape, Mercury Mariner and Mazda Tribute models to help buyers confirm fit before ordering.
• Steel Construction: The control arm is made from steel for structural durability and to match the original suspension behavior.
• Bushings Included: Supplied with bushings so the assembly is closer to ready-for-installation out of the box, saving time during replacement.
• Multiple Reference Numbers: Cross-referenced to several OE and aftermarket numbers for easy verification against the original part.

Who It's For

This part is best for owners of the specified Ford Escape, Mazda Tribute and Mercury Mariner models who want a like-for-like rear upper control arm replacement and prefer a single assembly that includes the ball joint. It suits experienced DIYers and independent shops that can press or install the provided ball joint mounting type and want a component that matches OE mounting points.

It may not be the ideal choice for vehicles outside the exact years listed or for customers who require a greaseable or adjustable control arm, since this unit is not adjustable and the ball joint is press-in. Buyers needing a different material, upgraded performance or a rebuildable ball joint should look at alternative suspension options.

Pros & Cons

Pros

• Direct fit design makes replacement straightforward and reduces installation time.
• Includes bushings and ball joint in one assembly, lowering the risk of mismatched parts.
• Steel construction and OE cross-reference numbers provide confidence in compatibility and durability.

Cons

• Ball joint is press-in and non-greaseable, which limits long-term serviceability for some users.
• Fitment is vehicle-specific, so confirm year and side before purchase to avoid returns.

Specifications

Fitment	2009-12 Ford Escape; 2009-11 Mercury Mariner; 2009-11 Mazda Tribute (rear driver side upper)
Assembly Type	Control Arm with Ball Joint, OE replacement
Material	Steel
Ball Joint Mounting Type	Press In
Adjustable / Greaseable	Not adjustable; not greaseable
Bushings	Included
Reference Numbers	9L8Z5500B and aftermarket cross references such as 521959, CMS40156, MS40156

Our Verdict

The TRQ rear left upper control arm with ball joint is a practical, cost-effective OE-style replacement for the listed Escape, Mariner and Tribute models. It delivers straightforward fitment and comes with bushings and a press-in ball joint, making it a sensible choice for DIY repairs or shop installs when the original arm is worn. Buyers who need adjustability or a greaseable ball joint should consider other options, but for an accurate direct fit this unit offers good value.

Frequently Asked Questions

Will this control arm fit my vehicle?
Confirm your vehicle is a 2009-2012 Ford Escape, 2009-2011 Mercury Mariner or 2009-2011 Mazda Tribute and that you need the rear driver side upper arm.

Is the ball joint serviceable?
The ball joint is press-in and not greaseable, so it is not intended for routine servicing.

Are bushings included?
Yes, the assembly is supplied with bushings to simplify installation and help match factory fitment.