MOOG RK643991 Suspension Trailing Arm

( Brand: Moog ), ( Manufacturer Part Number: RK643991 ), ( Warranty: 1 Year ), ( Type: Suspension Trailing Arm )

Review MOOG Suspension Trailing Arm

The Moog RK643991 suspension trailing arm is a high-performance automotive component designed to provide superior handling and steering stability for your vehicle. This arm is specifically engineered for applications that require a robust and reliable suspension system.

This trailing arm is manufactured using premium-grade materials, including high-strength steel for the main body and precision-machined aluminum for the adjustable camber plate. The use of these materials ensures both durability and minimal unsprung weight for optimal vehicle dynamics.

The Moog RK643991 suspension trailing arm features a unique adjustable camber design, allowing for fine-tuning of the vehicle's handling characteristics. This adjustment helps to maintain optimal tire contact with the road surface, improving grip and stability. The camber plate also includes adjustable toe settings, enabling precise alignment of the wheels for optimal tire wear and even contact patch.

The trailing arm is designed to work seamlessly with OEM and aftermarket suspension systems, ensuring a proper fit and reliable function. The arm is also engineered to meet or exceed OEM specifications for rigidity, ensuring proper wheel control and minimizing unwanted vibrations.

The Moog RK643991 suspension trailing arm is engineered and manufactured to meet the highest standards of quality and performance. Each component is rigorously tested to ensure it meets Moog's stringent specifications and is backed by a limited lifetime warranty.

Installation of the Moog RK643991 suspension trailing arm is straightforward and can typically be completed in a few hours with common hand tools. The arm comes complete with all necessary hardware and clear, easy-to-follow instructions to ensure a successful installation.

In summary, the Moog RK643991 suspension trailing arm is a high-quality, high-performance automotive component designed to deliver superior handling, steering stability, and adjustability for your vehicle. Its durable construction, adjustable camber and toe settings, and compatibility with various suspension systems make it an excellent choice for enthusiasts and professionals alike.

The Moog RK643991 suspension trailing arm is a popular aftermarket part used in various automotive applications. This component is responsible for connecting the vehicle's suspension system to the chassis or control arm, and its replacement is often recommended for improved handling and ride quality. Here are some pros and cons of buying a Moog RK643991 suspension trailing arm:

1. Enhanced Handling: By providing a better connection between the suspension and the chassis, this trailing arm helps improve the vehicle's handling characteristics, making it more responsive and agile.

2. OEM-Grade Quality: Moog is known for producing high-quality aftermarket parts, and the RK643991 is no exception. This part is designed to meet or exceed OEM specifications for durability and performance.

3. Improved Ride Quality: A worn-out trailing arm can lead to a rough ride, especially over bumps and uneven surfaces. Replacing it with a new Moog part can help reduce vibrations and provide a smoother, more comfortable ride.

4. Long-Lasting Design: Moog employs advanced manufacturing techniques and high-quality materials to ensure that their trailing arms are built to last. This can save you money in the long run by reducing the need for frequent replacements.

1. Cost: The Moog RK643991 suspension trailing arm can be more expensive than some aftermarket alternatives. However, the higher cost is justified by the part's superior quality and durability.

2. Installation Complexity: Depending on the vehicle and the accessibility of the suspension components, installing a new trailing arm can be a challenging and time-consuming task. It may be necessary to remove other components or use specialized tools to complete the installation.

3. Potential for Uneven Wear: If only one trailing arm is replaced and the other one is still worn out, there is a risk of uneven wear and uneven tire wear, which may require additional repairs or replacement in the future.

In conclusion, the Moog RK643991 suspension trailing arm offers several advantages, including enhanced handling, improved ride quality, and long-lasting design. However, its higher cost and installation complexity are potential drawbacks. Ultimately, if you're looking for a high-quality, durable aftermarket part to improve your vehicle's suspension system, the Moog RK643991 is a worthwhile investment.

Details:

FINISH MATERIAL COLOR shown in the listing image will often vary from actual part shipped. This part fits vehicles made in the following years 2017 ,2018,2019,2020,2021,2022,2023,2024. Information like which side a part fits LEFT or RIGHT and specific vehicle attributes Transmission, AWD/RWD, other exclusions are included for your information in this LEFT COLUMN. The image USUALLY shows all the pieces and qty included with part.

Manufacturer Warranty.

part #: rk643991 prices

• $62.50-$101.70

specifications controlarma:

• brand: Moog
• mpn: Rk643991
• warranty: 1 Year
• type: Suspension Trailing Arm

seller controlarma:

• # reviews: 4307
• city: Santa Fe Springs, California
• rating: 99.5%

offer controlarma:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• started: December 23, 2025

shipping controlarma:

• carrier: FedEx, USPS
• service: FedEx Ground / FedEx Home Delivery, USPS Priority Mail
• cost: $20.00
• class: Standard, Expedited
• transit: 5-12 Days
• type: Fixed

returns controlarma:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

payments controlarma:

• credit card: Visa
• wallet: Paypal
• other

general controlarma:

• Car Truck Parts Accessories > Steering Suspension > Radius, Swing Trailing Arms
• condition: New

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