HomeSuspension > Suspension, Springs and Related ComponentsMoog RK643337 Suspension Control Arm - Rear Left Upper
Part #: RK643337

Moog RK643337 Suspension Control Arm - Rear Left Upper

Rear Left Upper
46 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford and Lincoln, Explorer, Flex, MKS, MKT, and Taurus
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Moog RK643337 Rear Left Upper Control Arm

Moog RK643337 is a premium suspension control arm for the rear left upper position on select Ford, Lincoln, and Taurus-platform applications. It is engineered for structural strength and corrosion protection, with OE-standard fitment for the listed vehicles.

Key Features

  • Premium-grade suspension control arm for rear left upper placement
  • Built for structural strength and corrosion resistance
  • Meets OEM standards for the listed applications
  • Direct replacement for select Ford Explorer, Ford Flex, Ford Taurus, Lincoln MKT, and Lincoln MKS models
  • Moog part number RK643337 for catalog and fitment lookup

Detailed Description

This Moog suspension control arm is made for rear left upper suspension service on 2013-2019 Ford Explorer, 2009-2019 Ford Flex, 2010-2019 Ford Taurus, 2010-2019 Lincoln MKT, and 2009-2016 Lincoln MKS applications. The premium construction focuses on strength and corrosion protection, helping maintain proper rear suspension geometry and stable handling characteristics. This part cross-references Delphi TC6121 and Dorman OE Solutions 527-501 for the same application. Moog RK643337 is a practical OE-style replacement when servicing the rear left upper suspension on Ford Explorer, Ford Flex, and Lincoln MKT platforms.

What It Helps Address

  • Excessive rear suspension play or looseness
  • Clunking or knocking from the rear suspension area
  • Uneven tire wear related to worn suspension geometry
  • Handling instability caused by a worn control arm assembly
  • Failed or deteriorated rear left upper control arm and ball joint assembly

Installation Notes and Tips

Verify the vehicle year, make, model, and rear left upper position before ordering. This part is listed for 2013-2019 Ford Explorer, 2009-2019 Ford Flex, 2010-2019 Ford Taurus, 2010-2019 Lincoln MKT, and 2009-2016 Lincoln MKS applications. Because the notes specify a control arm and ball joint assembly that meets OEM standards, inspect adjacent suspension components during service and confirm alignment after installation.

Quality Assurance

Moog positions this control arm as a premium suspension component with structural strength and corrosion protection for the listed applications. The RK643337 is engineered to meet OEM standards for fit and function on the specified vehicles.

BrandMoog
Part NumberRK643337
Grade TypePremium

This part fits 46 vehicles. Search below:

YearMakeModelPositionNotes
2019FordExplorerRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2019FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2019FordTaurusRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2019LincolnMKTRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2018FordExplorerRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2018FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2018FordTaurusRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2018LincolnMKTRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2017FordExplorerRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2017FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2017FordTaurusRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2017LincolnMKTRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2016FordExplorerRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2016FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2016FordTaurusRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2016LincolnMKSRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2016LincolnMKTRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2015FordExplorerRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2015FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2015FordTaurusRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2015LincolnMKSRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2015LincolnMKTRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2014FordExplorerRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2014FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2014FordTaurusRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2014LincolnMKSRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2014LincolnMKTRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2013FordExplorerRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2013FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2013FordTaurusRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2013LincolnMKSRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2013LincolnMKTRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2012FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2012FordTaurusRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2012LincolnMKSRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2012LincolnMKTRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2011FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2011FordTaurusRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2011LincolnMKSRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2011LincolnMKTRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2010FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2010FordTaurusRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2010LincolnMKSRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2010LincolnMKTRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2009FordFlexRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
2009LincolnMKSRear Left UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

527-501CA85557PRCMS401204DE9Z5500BTC6121

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.