Moog RK642745 Suspension Control Arm - Rear Left Upper

Rear Left Upper Control Arm for Audi and Porsche

Moog RK642745 is a rear left upper suspension control arm built for select Audi and Porsche applications. It uses forged steel construction, rubber bushings, and corrosion-focused engineering to support stable rear suspension geometry on compatible vehicles.

Key Features

• Forged steel construction for structural strength
• Black finish with corrosion protection focus
• Rubber bushings included for rear suspension service
• Direct rear left upper position application
• No grease fitting included
• No ball joint included
• Non-adjustable design
• Part number RK642745 for catalog matching

Detailed Product Overview

This Moog suspension control arm is engineered for the rear left upper position on a wide range of Audi A4, A5, A6, A7, A8, Q5, S4, S5, S6, S7, S8, SQ5, RS5, RS7, allroad, and Porsche Macan models. The forged steel body and rubber bushings are selected to restore suspension support and help maintain proper rear wheel control on vehicles that rely on precise multi-link suspension geometry. RK642745 is a practical OE-style replacement for drivers searching for a rear left upper control arm for Audi A4 Quattro, Audi Q5, or Porsche Macan rear suspension service.

This part cross-references Mevotech Supreme CMS70164 for the same application.

What It Helps Address

• Rear suspension looseness or clunking from worn control arm bushings
• Uneven rear tire wear related to suspension geometry issues
• Excessive rear wheel movement over bumps or during cornering
• Alignment instability after wear in the upper rear control arm
• Noise from deteriorated rubber bushings in the rear suspension

Installation Notes and Fitment

Fits 2020-2026 Porsche Macan, rear left upper.

Fits 2015-2019 Porsche Macan, rear left upper.

Fits 2012-2018 Audi A6, rear left upper.

Fits 2012-2018 Audi A6 Quattro, rear left upper.

Fits 2012-2018 Audi A7 Quattro, rear left upper.

Fits 2011-2018 Audi A8 Quattro, rear left upper, without Armored Body Equipment.

Fits 2014-2018 Audi RS7, rear left upper.

Fits 2013-2018 Audi S6, rear left upper.

Fits 2013-2018 Audi S7, rear left upper.

Fits 2013-2018 Audi S8, rear left upper.

Fits 2011-2017 Audi A5 Quattro, rear left upper.

Fits 2011-2017 Audi Q5, rear left upper.

Fits 2011-2017 Audi S5, rear left upper.

Fits 2014-2017 Audi SQ5, rear left upper.

Fits 2011-2016 Audi A4, rear left upper.

Fits 2013-2016 Audi A4 allroad, rear left upper.

Fits 2011-2016 Audi A4 Quattro, rear left upper.

Fits 2013-2016 Audi allroad, rear left upper.

Fits 2011-2016 Audi S4, rear left upper.

Fits 2014-2015 Audi RS5, rear left upper.

Fits 2011-2014 Audi A5, rear left upper.

Fits 2010 Audi A4, rear left upper, from 11/09.

Fits 2010 Audi A4 Quattro, rear left upper, from 11/09.

Fits 2010 Audi Q5, rear left upper, from 11/2/09.

Fits 2010 Audi S4, rear left upper, from 11/09.

For installation, verify the rear left upper position and confirm vehicle build date notes before ordering. Because this control arm includes bushings but does not include a ball joint or grease fitting, inspect adjacent suspension components and alignment settings during replacement. Part number RK642745 is commonly searched for Audi A4 Quattro rear left upper control arm and Porsche Macan rear suspension repair.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection across foreign and domestic nameplates. RK642745 follows that OE-replacement approach for the listed Audi and Porsche applications.