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Every RV owner knows the frustration of unstable towing—the white-knuckle steering corrections, the trailer sway that worsens with passing trucks, and the constant worry about losing control. Standard pin boxes simply can't handle the demands of today's heavier trailers. The Curt™ Helux Coil-Spring Gooseneck Pin Box solves these problems with an engineered system that maintains control at highway speeds.
Features
- 20,000 lbs. maximum capacity – Handles the heaviest fifth-wheel trailers with confidence
- 2,700 lbs. pin weight rating – Distributes load evenly for safer towing
- Coil-spring suspension system – Absorbs road shocks 40% better than rubber-block designs
- Dual-latch security mechanism – Positive locking prevents accidental release
- 3/4" kingpin – Industry-standard size fits most gooseneck couplers
- Galvanized steel construction – Rust-resistant for years of reliable service
Unlike basic pin boxes that transfer every bump directly to your truck, the Helux's progressive coil springs act like a shock absorber system. This means less fatigue for you and your passengers, plus reduced wear on both your RV and tow vehicle. The design is particularly effective when crossing railroad tracks or uneven pavement.
Curt™ engineered this system specifically for RVers who tow long distances. The balanced weight distribution prevents the "tail wagging the dog" effect that plagues conventional setups. When properly installed, you'll notice immediately how much less effort is required to keep your rig straight—even in crosswinds or when being passed by semis.
Technical Specifications
- Brand: Curt™
- Model: Helux Coil-Spring Gooseneck Pin Box
- Capacity: 20,000 lbs.
- Pin Weight: 2,700 lbs.
- Kingpin Size: 3/4"
- Construction: Galvanized steel
- Weight: 0 lbs (contact for exact shipping weight)
- SKU: 2024044574
What's Included
- Complete Helux Coil-Spring Gooseneck Pin Box assembly
- All necessary mounting hardware
- Curt™ installation guide
| Brand | Curt™ |
|---|---|
| Model | Helux Coil-Spring Gooseneck Pin Box |
| Capacity | 20,000 lbs. |
| Pin weight | 2,700 lbs. |
| Kingpin size | 3/4" |
| Construction | Galvanized steel |
| Weight (lbs) | 0 |
| Sku | 2024044574 |
- Will this fit my existing gooseneck hitch? Yes, this pin box features a standard 3/4" kingpin that's compatible with most gooseneck couplers. Always verify your hitch's specifications before purchasing.
- How does the coil-spring system improve towing? The progressive springs absorb road impacts that would normally transfer directly to your truck, reducing trailer sway by up to 60% compared to rigid systems.
- Is professional installation required? While mechanically inclined owners can install it, we recommend professional installation to ensure proper alignment and weight distribution.
- What's the warranty coverage? Curt™ backs this pin box with a limited lifetime warranty against manufacturing defects.
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.