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Curt™

CURT L05 Rota-Flex™ Pin Box - 18,000 lbs

SKU #: 328330

A smoother ride is on the way! The CURT® Rota-Flex™ 5th wheel trailer pin box is designed to endure the ruggedness of the roads you encounter on your journeys, day after day and mile after mile.

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  • expand-more Quick Facts
    • check Replaces Lippert 1621 or 1621HD 5th wheel pin boxes
    • check Reduces chucking and absorbs road shock
    • check Long jaw with pivoting head
    • check Bolt-on installation with no assembly required
    • check Constructed with steel and a black powder coat finish that protects against rust
    • check Powder-coated lower jaw
    • check 18,000-lb. towing capacity
    • check Made in the USA
  • expand-more Specifications
    • check SKU: 328330
    • check Brand: Curt™
    • check Series: Rota-Flex™
    • check LCI Pin Box Number: L05
    • check OEM Pin Box Number: 1621
    • check Towing Capacity: 18,000 lbs.
    • check Pin Box Style: Long Jaw
    • check Pin Box Bolt Pattern: 2-Row
    • check Pin Box Width: 12"
    • check Pin Box Features: Pivoting Head, Torsion Compound
    • check Bolts Required Per Side: 5
    • check Country of Origin: USA
    • check Quantity In Package: 1
    • check UPC: 848150011329
    • check Warranty Term: 1 Year
    • check Unit of Measure: EA
    • check Item Length: 32.74
    • check Item Width: 13.41
    • check Item Height: 13.24
    • check Item Weight: 95.38
    • check Supersedes SKU: 160468,424693,426808
    • check Reference Vendor/Manufacturer Name: Lippert
  • expand-more What's Included
    • check Pin Box
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Product description

Upgrade to Comfort

Improve the quality of your ride with the CURT® Rota-Flex™ 5th wheel pin box. While chucking often occurs as a result of the king pin jerking inside the hitch, the Rota-Flex features a pivoting head that controls back and forth movement of the king pin within the hitch which reduces chucking and leads to a smoother ride. What makes this pin box particularly unique is that chucking is significantly reduced as a result of the pin box head moving instead of the king pin itself. The Rota-Flex also contains a robust rubber compound in its head that absorbs road shock and vibrations, resulting in less strain and reduced wear and tear on your trailer as you travel. Tow your trailer with confidence while enjoying the peaceful ride to your destination.

Packed with Strength and Simplicity

The Rota-Flex pin box has a gross trailer weight of 18,000 lbs. and is designed to replace Lippert 1621 or 1621HD pin boxes. It uses the same bolts as the original pin box, so no additional hardware is needed to install it. Simply take it out of the box and hook it on to your trailer as it comes completely assembled and ready for installation. This 5th wheel pin box is constructed with high-strength steel and a black powder coat finish that protects against rust, giving you the power to tow steadily through all the adventures that lie ahead.

Trust the Towing Experts

For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®’, and we proudly stand on that! We offer an extensive collection of towing accessories, from gooseneck, 5th wheel and weight distribution hitches to ball mounts, bike racks, pin boxes and much more, to ensure your towing experience is second to none. When you’re ready to hit the road and set out on your next adventure, trust the towing experts to get you there comfortably!

L05 Rota-Flex™ Pin Box - 18,000 lbs. Features:

  • IMPROVES RIDE - The Rota-Flex features a pivoting head that moves and controls back and forth movement of the king pin within the hitch which significantly reduces chucking and provides a smoother ride
  • SHOCK ABSORPTION TECHNOLOGYTo minimize strain and reduce wear and tear on the trailer, the Rota-Flex contains a robust rubber compound in its head that absorbs the road shock, bumps, and vibrations experienced on rugged terrain
  • SIMPLE INSTALLATION- The Rota-Flex is ready to be installed as soon as it comes out of the box. It uses the same bolts as the original pin box, so no additional hardware is needed for installation
  • BUILT TO LAST - Constructed with steel and a black powder coat finish that protects against rust, the Rota-Flex is extremely durable to ensure peaceful towing day after day!
  • SPECIALLY DESIGNED - The Rota-Flex is specifically configured to replace Lippert 1621 or 1621HD 5th wheel pin boxes with a towing capacity of 18,000 lbs.

Please allow three (3) extra days for shipping on this product.

Warning:

Warning Cancer and reproductive harm. www.P65Warnings.ca.gov

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Explore manuals, videos, FAQs and more associated with this product.

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Learn & Explore

  1. Introducing the CURT Helux™ 5th Wheel Pin Box
    Introducing the CURT Helux™ 5th Wheel Pin Box

    Introducing the CURT Helux™ 5th Wheel Pin Box

    The CURT Helux™ 5th wheel pin box combines advanced spring coil and shock technology to absorb jerking or bouncing movements, protecting the trailer, the truck, and the contents of both. 

    Read more arrow-right-alt
  2. How to eliminate chucking on a 5th wheel
    What Is 5th Wheel Trailer Chucking?

    What Is 5th-Wheel Trailer Chucking?

    Ever wondered what people mean when they say they're experienced 5th wheel chucking? More importantly, what can be done if you are experiencing chucking? Find answers and solutions here.

    Read more arrow-right-alt
  3. How to Choose the Best 5th Wheel Pin Box for Your Rig
    How to Choose the Best 5th Wheel Pin Box for Your Rig

    How to Choose the Best 5th Wheel Pin Box for Your Rig

    In this guide, we’ll walk through how to choose the best 5th wheel pin box for your 5th wheel trailer. Our goal is that you’ll come away from this guide feeling confident and ready to make an informed decision that fits your lifestyle, existing equipment, preferences, and budget.

    Read more arrow-right-alt

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  1. Introducing the CURT Helux™ 5th Wheel Pin Box
    Introducing the CURT Helux™ 5th Wheel Pin Box

    Introducing the CURT Helux™ 5th Wheel Pin Box

    The CURT Helux™ 5th wheel pin box combines advanced spring coil and shock technology to absorb jerking or bouncing movements, protecting the trailer, the truck, and the contents of both. 

    Read more arrow-right-alt
  2. How to eliminate chucking on a 5th wheel
    What Is 5th Wheel Trailer Chucking?

    What Is 5th-Wheel Trailer Chucking?

    Ever wondered what people mean when they say they're experienced 5th wheel chucking? More importantly, what can be done if you are experiencing chucking? Find answers and solutions here.

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  3. How to Choose the Best 5th Wheel Pin Box for Your Rig
    How to Choose the Best 5th Wheel Pin Box for Your Rig

    How to Choose the Best 5th Wheel Pin Box for Your Rig

    In this guide, we’ll walk through how to choose the best 5th wheel pin box for your 5th wheel trailer. Our goal is that you’ll come away from this guide feeling confident and ready to make an informed decision that fits your lifestyle, existing equipment, preferences, and budget.

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