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Moog RK621852 Suspension Control Arm and Ball Joint Assembly - Rear Lower or Rear Lower Forward
Overview of Moog RK621852 Suspension Control Arm Assembly
The Moog RK621852 suspension control arm and ball joint assembly is designed for reliable performance on select Hyundai and Kia models. This pre-greased, stamped steel control arm offers a durable solution for maintaining proper suspension geometry and vehicle handling.
- Pre-greased for immediate use without additional lubrication
- Includes rubber bushings for vibration dampening and noise reduction
- Stamped steel construction ensures strength and durability
- Press-in ball joint with threaded stud for secure mounting
- Compatible with Hyundai Magentis, Sonata, Kia Optima, XG300, and XG350
- Black finish for corrosion resistance and long service life
- Mounting hardware included for straightforward installation
Detailed Product Description
The Moog RK621852 suspension control arm and ball joint assembly is engineered to restore suspension performance on Hyundai and Kia vehicles including the Magentis, Sonata, Optima, XG300, and XG350. Constructed from stamped steel, this control arm provides a robust framework to support the vehicle’s suspension system. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to absorb road vibrations and reduce noise, contributing to a smoother ride. The ball joint features a press-in mounting type with a threaded stud, ensuring a secure and precise fit. Finished in black, the control arm resists corrosion and maintains structural integrity over time. The maximum length of 13.770 inches fits the specified vehicle models accurately, making the Moog RK621852 a reliable replacement part.
Common Applications and Issues Addressed
- Restores proper suspension alignment and handling
- Eliminates clunking or knocking noises from worn control arms
- Reduces uneven tire wear caused by faulty suspension components
- Improves vehicle stability and steering response
- Replaces damaged or corroded control arms on Hyundai and Kia models
Installation Notes and Tips
- Pre-greased ball joint allows for immediate installation without additional lubrication
- Ensure compatibility with Hyundai Magentis, Sonata, Kia Optima, XG300, and XG350 before installation
- Use proper tools to press in the ball joint securely and torque the threaded stud to manufacturer specifications
- Inspect surrounding suspension components during installation for wear or damage
Quality Assurance and Warranty
Moog suspension components are manufactured to meet or exceed OEM standards, providing dependable performance and durability. The RK621852 control arm assembly undergoes rigorous quality control to ensure fit, form, and function. While specific warranty details are not provided here, Moog typically offers limited warranties on their suspension parts to cover defects in materials and workmanship.
| Brand | Moog |
|---|---|
| Part Number | RK621852 |
| Pre-Greased | Yes |
| Grease Fitting Included | No |
| Bushings Included | Yes |
| Ball Joint Mounting Type | Press in |
| Ball Joint Stud Type | Threaded |
| Control Arm Material | Stamped steel |
| Mounting Hardware Included | Yes |
| Adjustable | No |
| Control Arm Color | Black |
| Control Arm Maximum Length | 13.770 |
| Bushing Material | Rubber |
This part fits 24 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Kia | Magentis | Rear Lower Forward | |
| 2006 | Kia | Optima | Rear Lower Forward | |
| 2005 | Hyundai | Sonata | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2005 | Hyundai | XG350 | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2005 | Kia | Magentis | Rear Lower Forward | |
| 2005 | Kia | Optima | Rear Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2004 | Hyundai | Sonata | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2004 | Hyundai | XG350 | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2004 | Kia | Magentis | Rear Lower Forward | |
| 2004 | Kia | Optima | Rear Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2003 | Hyundai | Sonata | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2003 | Hyundai | XG350 | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2003 | Kia | Magentis | Rear Lower Forward | |
| 2003 | Kia | Optima | Rear Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2002 | Hyundai | Sonata | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2002 | Hyundai | XG350 | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2002 | Kia | Magentis | Rear Lower Forward | |
| 2002 | Kia | Optima | Rear Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2001 | Hyundai | Sonata | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2001 | Hyundai | XG300 | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2001 | Kia | Magentis | Rear Lower Forward | |
| 2001 | Kia | Optima | Rear Lower Forward | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 2000 | Hyundai | Sonata | Rear Lower | Suspension Control Arm and Ball Joint Assembly meets OEM standards. |
| 1999 | Hyundai | Sonata | Rear Lower | Suspension 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.