HomeSuspension > Suspension, Springs and Related ComponentsMoog RK663890 Suspension Control Arm - Rear Lower
Part #: RK663890

Moog RK663890 Suspension Control Arm - Rear Lower

Rear Lower
8 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ram, 1500
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Moog RK663890 Rear Lower Control Arm

The Moog RK663890 is a premium suspension control arm for the rear lower position on select Ram 1500 trucks. Built for 2019-2026 Ram 1500 applications, it focuses on structural strength and corrosion protection for long-term suspension service.

Key Features

  • Premium-grade suspension control arm for rear lower placement
  • Engineered for structural strength in demanding truck use
  • Corrosion-protection focus for improved durability
  • Direct-fit replacement for select Ram 1500 rear suspension service
  • Part number RK663890 for easy identification

Detailed Description

Moog RK663890 is a premium rear lower control arm for the Ram 1500, covering 2019-2026 model years. It is built for foreign and domestic nameplates with an emphasis on strength and corrosion resistance, making it a practical choice when replacing worn rear suspension components. This part cross-references Mopar 68264947AA for the same application. For buyers searching for a rear lower control arm for 2019-2026 Ram 1500 trucks, RK663890 provides a direct replacement option with OE-style fitment focus.

What It Helps Address

  • Rear suspension looseness or instability
  • Excessive play from a worn control arm
  • Clunking or knocking from the rear suspension area
  • Uneven rear wheel tracking caused by suspension wear
  • Corrosion-related replacement needs on the rear lower arm

Installation Notes and Tips

Fits 2019-2026 Ram 1500, rear lower. Verify the vehicle year, model, and rear lower position before ordering. After installation, a suspension inspection and alignment check are recommended to confirm proper rear suspension geometry.

Quality Assurance

Moog premium control arms are engineered with structural strength and corrosion protection in mind. RK663890 is a premium-grade suspension component built for service replacement on the Ram 1500 platform.

BrandMoog
Part NumberRK663890
Grade TypePremium

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2026Ram15003.0LL6Rear Lower
2025Ram15003.0LL6Rear Lower
2024Ram15005.7LV8Rear Lower
2023Ram15005.7LV8Rear Lower
2022Ram15005.7LV8Rear Lower
2021Ram15005.7LV8Rear Lower
2020Ram1500Rear Lower
2019Ram1500Rear Lower

* 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:

520-68568264947AACMS251147GS251147

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