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Curt™

CURT Helux Coil-Spring Gooseneck Pin Box, 20,000 lbs. Capacity

SKU #: HELUX-20K-GOOSENECK

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The CURT Helux™ gooseneck pin box ensures smoother towing with a coil spring and shock absorber design, reducing jolts, vibrations, and gear shifts. Built from durable steel with a maintenance-free system, it’s compatible with Lippert frames.

To find the Max Pin Weight needed for your 5th Wheel, see How to Select the Right Helux for You .

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Frequently Bought Together

  • expand-more Quick Facts
    • check Purchase verification required. Refer to instruction sheet for pin weight measuring process
    • check Allows for additional cargo space in the bed of your truck versus traditional 5th wheel towing
    • check Proprietary coil and shock technology reduces chucking and jarring to protect trailer and gear
    • check Reduces force on the RV frame and body by 30% compared to similar pin boxes
    • check Automotive-grade coil spring provides a more comfortable ride for pets and passengers
    • check No break-in period — just install it and go
    • check Virtually maintenance-free design improves user experience over airbags
    • check Compatible with Rhino Box bolt-mounting pattern
    • check Auto-latching coupler accepts standard 2-5/16” gooseneck ball
    • check Robust steel construction and black powder coat finish
    • check Tested for safety in accordance with SAE J2638
    • check Made in USA with global materials
    • check Approved on Lippert RV frames (will not void warranty)
    • check Compatible with #23082, #23503, #23520, #23522, #23523, & #23546 CURT locks
    • check Limited lifetime warranty (one-year finish, one-year parts)
  • expand-more Specifications
    • check SKU: HELUX-20K-GOOSENECK
    • check Brand: Curt™
    • check Series: Helux
    • check Product Color: Black
    • check Weight Capacity: 20,000 lbs.
    • check Material Type: Steel
    • check Quantity In Package: 1
    • check Warranty Term: Limited lifetime warranty (one-year finish, one-year parts)
    • check Unit of Measure: EA
    • check Universal Part: Yes
    • check Shipping Dimensions: 29.5" L x 22" W x 44" H, 200 lbs.
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Product description

The CURT coil-spring gooseneck pin box is engineered for RV owners who demand more from their towing setup — more ride comfort, more truck bed space, and more long-term durability. By utilizing a gooseneck connection, this pin box gives you full use of your truck bed without sacrificing performance or stability. At the heart of the system is CURT’s proprietary coil and shock technology, designed to dramatically reduce the bumps, jolts, and vibrations that come with towing. Compared to traditional pin boxes, the Helux pin box cuts down on force to your RV frame and body by up to 30% compared to other gooseneck pin boxes. With the Helux, you’ll feel the difference right away. The automotive-grade coil spring absorbs road shock to deliver a smoother, quieter ride for both pets and passengers. And unlike airbag-style pin boxes, the Helux is virtually maintenance-free. No compressors. No adjustments. No break-in period. Just install it and tow. The auto-latching coupler connects quickly to any standard 2-5/16” gooseneck ball, making hookups fast, easy, and secure. It’s also built to last. The CURT coil-spring gooseneck pin box features high-strength steel construction, a durable black powder coat finish, and has been rigorously tested to SAE J2638 standards for safety and reliability. Plus, it’s compatible with Rhino Box bolt patterns and approved for use on Lippert RV frames, so it won’t void your manufacturer warranty. This Helux pin box is compatible with #23082, #23503, #23520, #23522, #23523, and #23546 CURT locks.

Features

  • SMOOTHER, MORE COMFORTABLE RIDE — The CURT Helux coil-spring gooseneck pin box utilizes innovative coil and shock technology to minimize jarring and chucking while towing
  • REDUCED FRAME STRESS — Engineered to protect your RV, the Helux coil-spring gooseneck pin box reduces force on the frame and body by 30% compared to similar designs
  • NO HASSLE INSTALLATION & MAINTENANCE — With no break-in period required, the Helux coil-spring gooseneck pin box is ready to perform the moment it’s installed
  • DURABLE & RELIABLE CONSTRUCTION — Built with robust steel and coated in a black powder finish, the Helux coil-spring gooseneck pin box is designed to withstand the rigors of long-haul towing
  • COMPATIBLE & WARRANTY-FRIENDLY — Designed to fit the Rhino Box bolt-mounting pattern, the Helux coil-spring 5th wheel pin box seamlessly integrates with Lippert RV frames without voiding your warranty
Warning:

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

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Support

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Support Documentation

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

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Learn & Explore

  1. Can You Tow a 5th Wheel with a Gooseneck Hitch?
    Can You Tow a 5th Wheel with a Gooseneck Hitch?

    Wondering if you can tow a 5th wheel with a gooseneck hitch? Get a detailed guide to compatibility, safety, and how the Helux gooseneck pin box makes it possible.

    Read more arrow-right-alt
  2. Helux 5th Wheel Pin Box Upgrade
    Is Your 5th Wheel Pin Box Failing?

    Is Your 5th Wheel Pin Box Failing?

    Your 5th wheel pin box plays a critical role in how safely and comfortably your RV tows.Over time, wear and fatigue are inevitable and ignoring early warning signs can lead to poor towing performance, costly damage, or serious safety risks.

    Read more arrow-right-alt
  3. Helux Pin Box: Smoother Towing Without the Hassle
    Smoother Towing Without the Hassle: A Closer Look at the CURT Helux Pin Box

    Smoother Towing Without the Hassle: A Closer Look at the CURT Helux Pin Box

    When you’re narrowing down your options for a new 5th wheel pin box, especially with a strong focus on long-term maintenance and overall towing comfort, one name is generating real buzz among experienced RV owners: the CURT Helux pin box.

    Read more arrow-right-alt
  4. Learn about 5th wheel hitches
    What is a 5th Wheel Hitch?

    What is a 5th Wheel Hitch?

    Thinking about buying a 5th wheel hitch? In this blog, we'll cover everything you need to know, starting by answering the basic question: what is a 5th wheel hitch?

    Read more arrow-right-alt

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  1. Can You Tow a 5th Wheel with a Gooseneck Hitch?
    Can You Tow a 5th Wheel with a Gooseneck Hitch?

    Wondering if you can tow a 5th wheel with a gooseneck hitch? Get a detailed guide to compatibility, safety, and how the Helux gooseneck pin box makes it possible.

    Read more arrow-right-alt
  2. Helux 5th Wheel Pin Box Upgrade
    Is Your 5th Wheel Pin Box Failing?

    Is Your 5th Wheel Pin Box Failing?

    Your 5th wheel pin box plays a critical role in how safely and comfortably your RV tows.Over time, wear and fatigue are inevitable and ignoring early warning signs can lead to poor towing performance, costly damage, or serious safety risks.

    Read more arrow-right-alt
  3. Helux Pin Box: Smoother Towing Without the Hassle
    Smoother Towing Without the Hassle: A Closer Look at the CURT Helux Pin Box

    Smoother Towing Without the Hassle: A Closer Look at the CURT Helux Pin Box

    When you’re narrowing down your options for a new 5th wheel pin box, especially with a strong focus on long-term maintenance and overall towing comfort, one name is generating real buzz among experienced RV owners: the CURT Helux pin box.

    Read more arrow-right-alt
  4. Learn about 5th wheel hitches
    What is a 5th Wheel Hitch?

    What is a 5th Wheel Hitch?

    Thinking about buying a 5th wheel hitch? In this blog, we'll cover everything you need to know, starting by answering the basic question: what is a 5th wheel hitch?

    Read more arrow-right-alt
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