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Curt | Helux Coil Spring 5th Wheel Pin Box | 2024044569 | 3500 Lb Pin Weight | 18000 Lb Capacity

Curt
SKU: 2024044569 UPC: 612314057863
Save $124.04 Ships $99 Freight
$1,575.95 $1,699.99you save $124.04

The CURT Helux Coil-Spring 5th Wheel Pin Box is designed to deliver a smoother, more controlled towing experience by significantly reducing road shock, chucking, jerking, and trailer vibration. Engineered with CURT’s proprietary coil spring and shock absorption technology, the Helux helps protect your RV frame, cargo, and trailer components while improving ride comfort for both passengers and pets during long hauls.

This model is compatible with Rhino Box bolt-mounting patterns and accepts a 2-5/16 inch gooseneck ball connection. Installation hardware is included, and there is no break-in period required — simply install and tow.

The CURT Helux 2024044569 features an 18,000 pound gross trailer weight capacity with a 3,500 pound maximum pin weight and 1,610 pound minimum pin weight. Proper pin weight is critical for correct suspension performance, with an optimal operating range between approximately 2,723 and 3,165 pounds. This pin box is not compatible with offset 5th wheel hitches.

Features and Benefits:

  • Proprietary coil and shock technology reduces chucking and road shock
  • Helps protect trailer frame, cargo, and components from vibration and impact
  • Reduces force on RV frame and body by up to 30%
  • Automotive-grade coil spring improves towing comfort and ride stability
  • Virtually maintenance-free design with no airbags to service
  • Fully welded steel construction with durable black powder coat finish
  • Compatible with Rhino Box bolt-mounting pattern
  • Approved for Lippert RV frames
  • Tested to SAE J2638 safety standards
  • Includes mounting hardware
  • No break-in period required

Specifications:

  • Manufacturer Part Number: 2024044569
  • Gross Trailer Weight Capacity: 18,000 Pounds
  • Maximum Pin Weight: 3,500 Pounds
  • Minimum Pin Weight: 1,610 Pounds
  • Length: 20-3/4 Inches
  • Horizontal Bolt Spacing: 7-1/2 Inches
  • Vertical Bolt Spacing: 2 Inches
  • Material: Carbon Steel
  • Finish: Black Powder Coat
  • Coupler Type: Gooseneck
  • King Pin Included: Yes

Important:

NOTE: Compatible with Rhino Box bolt-mounting patterns only

NOTE: Not compatible with offset 5th wheel hitches

NOTE: Returns will not be accepted after product has been installed

Product Overview

Unlike traditional air-ride pin boxes that require maintenance and air pressure adjustments, the Helux utilizes an automotive-grade internal coil spring system that is virtually maintenance-free with no airbags, bearings, or bushings to service. The system reduces force transferred to the RV frame and body by up to 30% compared to similar pin boxes, helping minimize trailer wear and towing fatigue.

Built from fully welded carbon steel with a durable triple-layer black powder coat finish, the Helux is designed for long-lasting corrosion resistance and dependable performance in demanding towing conditions. It is fully tested to SAE J2638 safety standards and approved for use on Lippert RV frames without voiding the manufacturer warranty.

What is Pin Weight and Why Does it Matter?

Your trailer's pin weight is the amount of weight pressing down on your truck through the king pin. It's the key factor in choosing the right Curt Helux pin box since each model is tuned to a specific pin-weight range. If it's too light, the coil springs won't engage correctly, but if it's too heavy, you'll overstress the system. When this number is accurate, the pin box performs the way it was designed and gives you the smoothest ride possible.

How to Accurately Measure Pin Weight

The most reliable method is to use a set of certified vehicle scales (like CAT scales).

  • Step
    1: Weigh your truck and trailer together with the trailer hitched
    (truck front axle on Scale 1, truck rear axle on Scale 2, and trailer
    axles on Scale 3).
  • Step 2: Record the weights from Scales 1 and 2, then add them together. This is Weight A.
  • Step 3: Unhitch the trailer and weigh the truck alone (front axle on Scale 1 and rear axle on Scale 2).
  • Step 4: Record the weights from Scales 1 and 2, then add them together. This is Weight B.
  • Step 5: Subtract Weight A from Weight B. The difference is your actual pin weight.

This process accounts for how your trailer is actually loaded, which
includes cargo and water tanks, so you know you're picking a pin box that matches the conditions you're using it with.

How to Estimate Pin Weight

If you don't have access to a scale, you can get a ballpark figure with your trailer's GVWR:

  • Step 1: Find the GVWR on the trailer's specification sticker.
  • Step 2: Multiply that number by 0.22.
  • Step 3: The result is your estimated pin weight.

This method gives you a starting point, but remember it's only an estimate. The actual pin weight can change depending on how you fill tanks and distribute weight in the trailer.

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