1. Product Overview
This manual provides essential information for the Metrix Premium Front Left & Right Lower Control Arm with Ball Joint & Bushing Assembly Kit. This kit is designed to meet or exceed OEM specifications, ensuring reliable performance and a precise fit for compatible vehicles.
1.1. Product Name
Metrix Premium Chassis Parts - Front Left & Right Lower Control Arm w Ball Joint & Bushing Assembly Kit
1.2. Model Number
99861MT
1.3. Brand
METRIX PREMIUM CHASSIS PARTS
1.4. Compatibility
This kit is compatible with the following vehicle models:
- 2016-2019 Ford Explorer (without Headlight Level Sensor)
- 2013-2019 Ford Police Interceptor Utility
- 2011-2015 Ford Explorer
1.5. Kit Contents
The package includes:
- 1x Front Left Lower Control Arm and Ball Joint Assembly (Part Number: RK622216)
- 1x Front Right Lower Control Arm and Ball Joint Assembly (Part Number: RK622215)
2. Product Features
- Pre-greased: Designed for extended lifespan and smooth movement, eliminating the need for initial greasing.
- Material: Constructed from durable Cast Iron for strength and longevity.
- Quantity: Supplied as a pair (2 units) for both front left and right sides.
- Exceeds OEM Standards: Engineered and manufactured to surpass original equipment manufacturer specifications.
- Certified Quality: IATF 16949 and ISO 9001 certified, ensuring superior reliability and performance.
3. Installation Guidelines
Installation of automotive suspension components requires specialized tools and knowledge. It is highly recommended that this product be installed by a qualified professional mechanic to ensure proper fitment, safety, and vehicle alignment.
3.1. Safety Precautions
- Always wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
- Ensure the vehicle is securely supported on jack stands or a lift before beginning any work.
- Disconnect the vehicle's battery if working near electrical components.
- Refer to your vehicle's service manual for specific torque specifications and procedures.
3.2. General Installation Steps (Consult a professional for detailed instructions)
- Safely lift and support the vehicle.
- Remove the wheel and any components obstructing access to the lower control arm.
- Carefully detach the old lower control arm, noting the orientation and connection points.
- Install the new Metrix Premium lower control arm, ensuring all bolts are hand-tightened initially.
- Lower the vehicle partially to allow the suspension to settle, then torque all fasteners to the manufacturer's specifications.
- Reinstall any removed components and the wheel.
- Perform a wheel alignment after installation to ensure proper vehicle handling and tire wear.
4. Maintenance
The Metrix Premium control arms are pre-greased for an extended lifespan. Regular inspection of all suspension components, including control arms, ball joints, and bushings, is recommended during routine vehicle maintenance. Check for signs of wear, damage, or looseness. Address any issues promptly to maintain vehicle safety and performance.
5. Troubleshooting
If you experience unusual noises (e.g., clunking, squeaking), vibrations, or changes in steering feel after installation or during normal operation, it may indicate an issue with the suspension components. Common issues can include:
- Loose fasteners.
- Improperly torqued components.
- Damaged or worn bushings/ball joints (if not replaced).
- Incorrect wheel alignment.
If troubleshooting steps do not resolve the issue, consult a professional mechanic for diagnosis and repair.
6. Specifications
| Attribute | Value |
|---|---|
| Brand | METRIX PREMIUM CHASSIS PARTS |
| Fit Type | Vehicle Specific Fit |
| Auto Part Position | Front Lower |
| Color | Black |
| Material | Cast Iron |
| Orientation | Front |
| EU Spare Part Availability Duration | 3 Years |
| UPC | 769055199151 |
| OEM Part Numbers | RK622215, 45D10437, CMS40186, 522-760, GB5Z3078C, RK622216, 45D10317, CMS40185, 522-759, BB5Z3079A |
| Model Number | 99861MT |
| Item Weight | 31.3 pounds |
| Product Dimensions | 24 x 4 x 18 inches |
7. Warranty and Support
All Metrix Premium Chassis Parts come with a 3 Year / 36,000 miles Limited Warranty from the date of installation. This warranty covers defects in material and workmanship under normal use and service.
For warranty claims, technical assistance, or any product-related inquiries, please contact Metrix Premium Chassis Parts customer support through their official website or authorized distributors. Keep your purchase receipt and installation records for warranty validation.
8. Product Images

Overall view of the Metrix Premium Front Left and Right Lower Control Arm Kit.

Detailed view of the Metrix Premium Front Left Lower Control Arm with ball joint and bushings.

Detailed view of the Metrix Premium Front Right Lower Control Arm with ball joint and bushings.

Top-down perspective of a Metrix Premium Lower Control Arm, highlighting its cast iron construction.

Angled view of a Metrix Premium Lower Control Arm, showing the integrated ball joint and bushing.

Side profile of a Metrix Premium Lower Control Arm, emphasizing its robust design.

Close-up of the ball joint on a Metrix Premium Lower Control Arm.

Close-up of the bushing on a Metrix Premium Lower Control Arm.

The Metrix Premium Front Left & Right Lower Control Arm Kit as packaged.

Fitment guide for Metrix Premium Front Left/Right Lower Control Arm, Model 99861MT, showing compatible Ford Explorer and Police Interceptor Utility years.
9. Product Videos
9.1. Metrix Premium Control Arm Overview
This video provides an overview of Metrix Premium Control Arms, highlighting their engineering, manufacturing process, and quality standards. It demonstrates how these parts are designed to meet or exceed OE specifications for durability and performance.