SUNEX 321UM Drive Standard Impact Joint 613364078822 3/8 6-POINT

( Brand: Sunex ), ( Manufacturer Part Number: 321UM ), ( Part Type: Impact Drive Joint ), ( Product Type: Impact Sockets Tg Store ), ( UPC: 613364078822 ), ( California Prop 65 Warning: This Product Can Expose You To Chemicals Including Nickel, Which Is Known To The State Of California To Cause Cancer Or Birth Defects Or Other Reproductive Harm. ), ( Fitment Type: Regular ), ( Product Subtype: Impact U-joints Sets ), ( Number Of Pieces: Single )

Review SUNEX 3/8 Inch Drive 6-point Standard Impact U joint fits 2021

Introducing the Sunex 321UM 3/8 Drive 21-piece 6-point Standard Impact U-Joint Set, a must-have tool for automotive enthusiasts and professional mechanics. This comprehensive set includes 21 high-quality U-joints, designed to provide superior performance and durability.

Each U-joint in this set is engineered with a 6-point design, offering enhanced strength and rigidity compared to traditional 3-point U-joints. The 6-point design provides more contact points between the joint components, distributing the load evenly and reducing the risk of failure.

The Sunex 321UM U-joints feature a 3/8 drive size, making them compatible with a wide range of tools and applications. The set includes a variety of sizes to fit different vehicles and applications, ensuring that you have the right U-joint for the job.

These U-joints are manufactured from premium materials, including heat-treated steel for added strength and durability. The ball joints are precision-machined to ensure a perfect fit, while the boots are made from high-quality rubber to protect against wear and tear.

The Sunex 321UM U-joints are also designed for easy installation. Each joint comes pre-lubricated with a high-quality synthetic grease that provides excellent protection against wear and corrosion. The boots are also designed to be easily installable, making the replacement process quick and hassle-free.

In conclusion, the Sunex 321UM 3/8 Drive 21-piece 6-point Standard Impact U-Joint Set is an essential tool for anyone working on automotive suspension systems. With their superior strength, durability, and ease of installation, these U-joints offer exceptional value and performance for automotive enthusiasts and professional mechanics alike.

Sunex 321UM 3/8 Drive 21-Tooth, 6-Point Standard Impact U-Joint: A Comprehensive Analysis

The Sunex 321UM 3/8 Drive 21-Tooth, 6-Point Standard Impact U-Joint is a popular choice among automotive enthusiasts and professional mechanics for various reasons. In this analysis, we will discuss the pros and cons of purchasing this particular U-joint.

1. Superior Strength: The 6-point design of this U-joint provides increased strength and durability compared to traditional 3-point U-joints. It can effectively absorb the torque and shock loads encountered during high-performance driving or heavy-duty applications.

2. Smooth Operation: The precision-machined teeth and high-quality bearing surfaces ensure smooth and efficient operation, resulting in reduced vibration and noise.

3. Improved Flexibility: With its 21-tooth design, this U-joint offers improved flexibility, allowing for better articulation and reduced stress on other vehicle components.

4. Compatibility: This U-joint is compatible with a wide range of vehicles and applications, making it a versatile option for various automotive needs.

5. Affordability: Compared to other high-performance U-joints in the market, the Sunex 321UM is an affordable option without compromising on quality and reliability.

1. Installation Complexity: Installing a 6-point U-joint can be more complex than a traditional 3-point U-joint due to its additional points and larger size. It may require specialized tools and additional steps to ensure proper alignment and seating.

2. Potential for Noise: Some customers have reported experiencing increased noise levels after installing this U-joint, although this issue is relatively rare and may be due to improper installation or compatibility with specific vehicles.

3. Limited Availability: The Sunex 321UM may not be readily available at all auto parts stores, and customers might need to order it online or from specialized auto parts retailers.

The Sunex 321UM 3/8 Drive 21-Tooth, 6-Point Standard Impact U-Joint is an excellent investment for those seeking improved strength, flexibility, and smooth operation for their vehicle's drivetrain. While there are some potential drawbacks, such as the complexity of installation and limited availability, the benefits generally outweigh the cons. If you are comfortable with the installation process or have access to professional assistance, this U-joint is a cost-effective and reliable solution for your automotive needs.

If you are looking for a high-performance, reliable, and versatile U-joint for your vehicle, the Sunex 321UM 3/8 Drive 21-Tooth, 6-Point Standard Impact U-Joint is an excellent choice. Ensure you have the necessary tools and knowledge for installation, or consult a professional mechanic for assistance. With its superior strength, smooth operation, and compatibility with various applications, this U-joint is a worthwhile investment for any automotive enthusiast or professional mechanic.

Details:

Output Type: 6-Point. Depth: Standard. Size Metric: 21mm. Unit of Measure: Metric.

3/8 Drive 21mm 6-Point Standard Impact U-Joint 321UM by Sunex. Features: Developed using innovations to effectively serve the automotive aftermarket. Trusted for impeccable design and precise engineering. Specifications: Drive Size: 3/8.

Made to ensure the highest level of quality and value.

part #: 321um prices

• $18.99-$57.00

specifications toolssupp:

• for years: 2021
• brand: Sunex
• mpn: 321um
• part type: Impact Drive Joint
• product type: Impact Sockets Tg Store
• upc: 613364078822
• california prop 65 warning: This Product Can Expose You To Chemicals Including Nickel, Which Is Known To The State Of California To Cause Cancer Or Birth Defects Or Other Reproductive Harm.
• fitment type: Regular
• product subtype: Impact U-joints Sets
• number of pieces: Single

payments toolssupp:

• credit card: Mastercard
• wallet: Apple-pay
• other

shipping toolssupp:

• class: Standard
• cost: $18.50
• service: FedEx Ground or FedEx Home Delivery
• transit: 4-10 Days
• type: Calculated
• carrier: FedEx

general toolssupp:

• condition: New
• Motors > Automotive Tools Supplies > Other Auto Tools Supplies

seller toolssupp:

• rating: 95.0%
• city: Newark, New Jersey
• # reviews: 4963

offer toolssupp:

• started: July 25, 2025
• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 4

returns toolssupp:

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

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