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Tired of fighting trailer sway or worrying about hitch failures when hauling heavy loads? Standard pin boxes often lack the precision engineering needed for demanding RV towing conditions. The Curt Helux Coil-Spring Gooseneck Pin Box solves these problems with its robust 20,000 lbs capacity and advanced shock-absorbing coil spring system.
Features
- 20,000 lbs gross trailer weight rating – Handles the heaviest fifth-wheel configurations
- 3,200 lbs pin weight capacity – Distributes load evenly for safer towing
- Coil-spring suspension absorbs road shocks while maintaining steering precision
- Helux™ friction technology reduces chucking and sway by 40% vs standard designs
- Forged steel construction with zinc plating resists corrosion from road salts
- Direct bolt-on replacement for most gooseneck trailers with 2.5" kingpin
Engineered for professional haulers and serious RVers, the Helux pin box transforms your towing experience. The proprietary coil spring system works in tandem with Curt's friction technology to eliminate the jerky movements that cause driver fatigue. Unlike rubber-based systems that degrade over time, the Helux maintains consistent performance trip after trip.
This pin box is the solution for owners upgrading from bumper pulls or experiencing instability with their current setup. The 20K rating means you'll never question whether your hitch can handle the load—even when navigating steep grades or crosswinds.
Technical Specifications
- Brand: Curt™
- Model: Helux Coil-Spring Gooseneck
- GTWR: 20,000 lbs
- Pin Weight Capacity: 3,200 lbs
- Kingpin Size: 2.5"
- Weight: 0 lbs (contact for exact shipping weight)
- SKU: 2024044576
What's Included
- Curt Helux Coil-Spring Gooseneck Pin Box assembly
- All necessary mounting hardware
- Installation instructions
| Brand | Curt™ |
|---|---|
| Model | Helux Coil-Spring Gooseneck |
| Gtwr | 20,000 lbs |
| Pin weight capacity | 3,200 lbs |
| Kingpin size | 2.5" |
| Weight (lbs) | 0 |
| Sku | 2024044576 |
- Will this fit my 2018 grand design reflection? Yes, this pin box is compatible with most fifth-wheel trailers using a standard 2.5" kingpin. Measure your existing pin box for confirmation.
- How does the coil spring compare to rubber systems? Coil springs maintain consistent tension over time, while rubber degrades. The Helux system provides 3x the shock absorption of standard rubber designs.
- Is professional installation required? While mechanically inclined owners can install it, we recommend professional installation for proper torque specs and alignment.
- What's the warranty coverage? Curt provides a 1-year limited warranty against manufacturing defects when purchased from authorized dealers.
Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.