HomeSuspension > Suspension, Springs and Related ComponentsMoog RK621428 Suspension Control Arm and Ball Joint Assembly - Front Upper
Part #: RK621428

Moog RK621428 Suspension Control Arm and Ball Joint Assembly - Front Upper

Front Upper
3 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 Mercury, Mustang, Falcon, Falcon Sedan Delivery, Ranchero, Comet, and Sprint
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Overview of Moog RK621428 Suspension Control Arm Assembly

The Moog RK621428 Suspension Control Arm and Ball Joint Assembly is designed specifically for Ford Mustang models, providing a reliable replacement part that integrates multiple suspension components. This pre-greased assembly includes all necessary hardware for a straightforward installation, ensuring compatibility and durability.

  • Pre-greased control arm and ball joint for immediate use
  • Includes grease fitting for easy maintenance
  • Comes with rubber bushings to reduce vibration and noise
  • Bolt-in ball joint mounting with threaded stud for secure fit
  • Stamped steel control arm finished in black for corrosion resistance
  • Mounting hardware included for complete installation
  • Control arm maximum length of 8.850 inches

Detailed Product Description

The Moog RK621428 is a suspension control arm and ball joint assembly engineered for the Ford Mustang. Constructed from stamped steel, the control arm offers strength and durability while maintaining a manageable weight. The assembly comes pre-greased and includes a grease fitting, allowing for ongoing lubrication and extended service life. Rubber bushings are included to absorb road shocks and minimize noise, enhancing ride comfort. The ball joint features a bolt-in mounting type with a threaded stud, ensuring a secure and precise fit. The black finish on the control arm provides additional protection against corrosion and wear.

Applications and Problem Solving

This suspension control arm assembly is used to replace worn or damaged components in the front suspension system of Ford Mustang vehicles. It addresses several common issues:

  • Eliminates excessive play or looseness in the suspension
  • Reduces clunking noises caused by worn ball joints or bushings
  • Restores proper wheel alignment and handling performance
  • Improves ride quality by absorbing road vibrations
  • Prevents premature tire wear due to suspension misalignment

Installation Notes and Tips

Installation of the Moog RK621428 control arm assembly requires basic suspension knowledge and tools. Since the assembly comes pre-greased and includes mounting hardware, it simplifies the replacement process. It is important to torque all bolts to manufacturer specifications and to check wheel alignment after installation. The included grease fitting allows for periodic lubrication to maintain ball joint performance.

Quality Assurance and Warranty

Moog parts are manufactured to meet or exceed OEM standards, ensuring reliable fit and function. The RK621428 assembly undergoes rigorous testing for durability and performance. This product includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term use on Ford Mustang vehicles.

BrandMoog
Part NumberRK621428
AdjustableNo
Ball Joint Mounting TypeBolt In
Ball Joint Stud TypeThreaded
Bushing MaterialRubber
Bushings IncludedYes
Control Arm ColorBlack
Control Arm MaterialStamped Steel
Control Arm Maximum Length8.850
Grease Fitting IncludedYes
Mounting Hardware IncludedYes
Pre-GreasedYes

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
1966FordMustangFront UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
1965FordMustangFront UpperSuspension Control Arm and Ball Joint Assembly meets OEM standards.
1964FordMustangFront 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:

260660445D1930507-20135202296226100062361000C4DZ3082BCB85016FA3604

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