Delphi TC4526 Suspension Control Arm and Ball Joint Assembly - Rear Right Upper

OE-Style Rear Right Upper Control Arm

Delphi TC4526 is a suspension control arm and ball joint assembly built for direct replacement service on select Subaru applications. It is engineered for the rear right upper position and uses OE-focused materials and dimensional checks to support proper fit on Crosstrek, Forester, and XV Crosstrek models.

• Fits 2016-2024 Subaru Crosstrek, rear right upper
• Fits 2014-2024 Subaru Forester, rear right upper
• Fits 2013-2015 Subaru XV Crosstrek, rear right upper
• Steel control arm construction with casting/forged design
• Pre-greased assembly with included ball joint, bushings, and dust boot
• Black painted finish and black bushing color
• Ball joint uses a machined mounting type and grooved stud design
• Standard replacement grade for suspension service

Built for Subaru Rear Suspension Service

This Delphi TC4526 control arm assembly is designed around OE-style safety and performance requirements. Delphi applies dimensional and material analysis to help ensure proper compatibility between the original part and the aftermarket replacement, while the assembly is tested for extreme temperature exposure and salt-spray resistance. For Subaru Crosstrek rear right upper suspension repair, Subaru Forester rear right upper service, or XV Crosstrek rear right upper replacement work, TC4526 provides a complete assembly with the ball joint already installed.

This part cross-references MOOG Chassis Products RK623523 for the same application.

Common Problems This Part Addresses

• Rear suspension clunking or knocking from worn ball joint or bushings
• Uneven rear tire wear caused by looseness in the upper control arm
• Excessive rear wheel movement from deteriorated suspension joints
• Handling instability from worn rear right upper suspension components
• Noise over bumps from cracked or fatigued rubber bushings

Installation Notes

Verify the rear right upper position before installation and compare the original arm length, mounting hole layout, and bushing dimensions to the removed part. This assembly is pre-greased and does not include mounting hardware, grease fitting, cotter pin, or castle nut. Because the ball joint is already integrated, replacement is typically performed as a complete arm assembly rather than a separate joint service.

Quality Assurance

Delphi backs this suspension component with OE-focused engineering practices, including temperature cycling below -40 degrees C and above 120 degrees C, plus extended salt-spray exposure testing. The TC4526 is built as a standard replacement part for Subaru suspension repair where consistent fit and durable materials matter.