Moog RK621001 Suspension Control Arm and Ball Joint Assembly - Front Right Upper Forward

OE-Style Front Right Upper Control Arm

Moog RK621001 is a suspension control arm and ball joint assembly for the front right upper forward position. It is built for Audi A4, A4 Quattro, A5, A5 Quattro, S4, S5, RS5, Q5, and SQ5 applications with a forged aluminum arm, pre-greased construction, and included bushings.

For Audi A4 and Audi Q5 front suspension service, this assembly provides a direct-fit replacement for the upper forward control arm location. The Moog RK621001 is engineered for structural strength and corrosion protection, with a press-in ball joint, pinch-style stud, rubber bushings, and mounting hardware included.

Key Features

• Front right upper forward suspension control arm and ball joint assembly
• Forged aluminum control arm for strength and reduced weight
• Pre-greased for initial service readiness
• Rubber bushings included
• Press-in ball joint with pinch-style stud
• Mounting hardware included
• Gray finish
• Non-adjustable design

Fitment Details

• Fits 2017 Audi A5 Quattro, front right upper forward
• Fits 2017 Audi Q5, front right upper forward
• Fits 2017 Audi S5, front right upper forward
• Fits 2017 Audi SQ5, front right upper forward
• Fits 2009-2016 Audi A4, front right upper forward
• Fits 2009-2016 Audi A4 Quattro, front right upper forward
• Fits 2008-2016 Audi A5 Quattro, front right upper forward
• Fits 2013-2016 Audi Q5, front right upper forward
• Fits 2010-2016 Audi S4, front right upper forward
• Fits 2008-2016 Audi S5, front right upper forward
• Fits 2014-2016 Audi SQ5, front right upper forward
• Fits 2013-2015 Audi RS5, front right upper forward
• Fits 2012-2014 Audi A5, front right upper forward
• Fits 2012 Audi Q5, front right upper forward, from 8/13/12; kit contains bushing; premium OE replacement
• Fits 2010 Audi A5, front right upper forward

What This Part Helps Address

• Front-end looseness from a worn upper control arm
• Clunking or knocking from worn ball joint or bushings
• Uneven tire wear related to suspension wear
• Steering instability or wandering at the front suspension
• Restoration of proper suspension geometry after wear-related failure

Installation Notes

Verify the front right upper forward position before installation. This assembly uses a press-in ball joint and pinch-style stud, so proper suspension service procedures and alignment checks are recommended after replacement. Confirm vehicle-specific fitment for your Audi A4, Audi A5, Audi Q5, Audi S4, Audi S5, Audi RS5, or SQ5 before ordering.

This part cross-references Beck/Arnley 102-7513 and Delphi TC2451 for the same application.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection. RK621001 is built as an OE-style suspension replacement for foreign and domestic nameplates, with pre-greased construction and included bushings for service-ready installation.