Delphi TC7388 Suspension Control Arm and Ball Joint Assembly - Rear Right Lower or Rear Right Upper

OE-Style Rear Suspension Control Arm

Delphi TC7388 is a standard replacement suspension control arm and ball joint assembly built for rear right upper and rear right lower applications. It is engineered for select INFINITI FX35, FX50, FX37, and QX70 models, with OE-focused dimensional and material analysis to support proper fit and suspension geometry.

• Pre-greased for initial installation
• Aluminum control arm construction with casting/forged design
• Rubber bushings included
• Machined ball joint mounting with threaded stud
• Mounting hardware included
• Light suspension grade, standard replacement item
• Non-adjustable and non-greaseable design

Fitment Coverage

• Fits 2016-2017 INFINITI QX70, rear right upper
• Fits 2014-2015 INFINITI QX70, rear right lower
• Fits 2013 INFINITI FX37, rear right lower
• Fits 2009-2013 INFINITI FX50, rear right lower
• Fits 2009-2012 INFINITI FX35, rear right lower

This Delphi TC7388 rear suspension control arm and ball joint assembly cross-references Beck/Arnley 102-7832 and Dorman OE Solutions 524-100 for the same application.

What It Helps Address

• Rear suspension looseness or play at the control arm
• Noisy or worn ball joint movement
• Uneven rear tire wear caused by suspension wear
• Handling drift or instability from worn rear linkage components
• Restoring rear suspension alignment after component wear

Installation Notes

Verify the vehicle position before ordering, since this part is listed for rear right upper and rear right lower locations depending on application. Confirm mounting hole diameter, arm length, and ball joint specifications against the original component before installation. Because the assembly is pre-greased and non-greaseable, no grease fitting is provided.

Quality Assurance

Delphi applies OE-level testing and dimensional analysis to its aftermarket steering and suspension parts. This assembly is validated for extreme temperature exposure and salt-spray resistance to help support durability in real-world conditions on INFINITI FX35, FX50, FX37, and QX70 platforms.