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Tired of unpredictable trailer sway or jerky rides that stress your RV's frame? Standard pin boxes often transmit road shocks directly to your rig, causing premature wear and driver fatigue. Curt engineered the Helux Coil-Spring Pin Box to absorb vertical impacts while maintaining precise lateral control—giving you smoother towing and longer-lasting components.
Features
- 24,000 lbs. capacity handles even the heaviest fifth-wheel trailers
- 5,400 lbs. pin weight rating distributes load evenly across your RV chassis
- Coil-spring suspension reduces chucking by 40% compared to rigid designs
- Precision-machined Lippert mounting points ensure bolt-on compatibility
- Maintenance-free pivot bushings eliminate greasing for hassle-free ownership
- Powder-coated finish resists corrosion from road salt and moisture
Unlike basic pin boxes that transfer every bump to your cab, the Helux's dual-stage coil springs progressively absorb energy. This means fewer white-knuckle moments when hitting potholes or uneven roads. The system's balanced damping also prevents trailer oscillations that can lead to dangerous sway situations at highway speeds.
Engineered specifically for Lippert-equipped RVs, this Curt pin box maintains OEM-grade fitment while upgrading your towing dynamics. The forged steel construction meets SAE J2638 standards for strength—critical when carrying expensive rigs through mountain passes or cross-country hauls.
Tech Specs
- Brand: Curt™
- Model: Helux Coil-Spring
- Capacity: 24,000 lbs.
- Pin Weight: 5,400 lbs.
- Mounting Pattern: Lippert Standard
- Finish: Black Powder Coat
- Weight: 0 lbs (see manual for actual shipping weight)
- SKU: 2024044571
What's Included
- Curt Helux Pin Box Assembly
- Hardware Kit
- Installation Manual
| Brand | Curt™ |
|---|---|
| Model | Helux Coil-Spring |
| Capacity | 24,000 lbs. |
| Pin weight | 5,400 lbs. |
| Mounting pattern | Lippert Standard |
| Finish | Black Powder Coat |
| Weight (lbs) | 0 |
| Sku | 2024044571 |
- Will this fit my lippert-equipped fifth wheel? Yes—this pin box uses standard Lippert mounting patterns for direct bolt-on installation on most Lippert chassis.
- How does the coil-spring system improve towing? The dual-stage springs absorb vertical impacts that would otherwise transfer to your RV, reducing chucking and trailer sway while improving ride comfort.
- Is professional installation required? While mechanically inclined owners can install it, we recommend professional installation to ensure proper torque specs and alignment.
- 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.