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Tired of fighting trailer sway or dealing with violent chucking on rough roads? Standard pin boxes often transfer every bump directly to your truck, creating a white-knuckle driving experience. The Curt Helux Coil-Spring Pin Box solves these problems with its innovative suspension design that absorbs road shocks before they reach your tow vehicle.
Features
- 24,000 lbs. gross trailer weight capacity for heavy-duty towing applications
- 4,000 lbs. maximum pin weight rating
- Coil-spring suspension reduces chucking by up to 70% compared to rigid designs
- Forged steel construction with zinc plating for corrosion resistance
- Precision-engineered pivot points minimize lateral movement
- Direct bolt-on replacement for most standard 5th wheel pin boxes
The Helux pin box isn't just about comfort—it's about control. When you're navigating mountain passes or dealing with crosswinds, the coil-spring design actively counters sway forces that would normally push your trailer off course. This means less steering correction and reduced driver fatigue on long hauls.
Curt's engineering team designed this pin box specifically for RVers who demand both performance and durability. The zinc-plated steel construction withstands road salt and moisture, while the sealed bearings require no routine maintenance. Unlike cheaper alternatives that develop slop over time, the Helux maintains tight tolerances mile after mile.
Technical Specifications
- Model: Helux Coil-Spring 5th Wheel Pin Box
- Capacity: 24,000 lbs. GTWR
- Pin Weight: 4,000 lbs. maximum
- Construction: Forged steel with zinc plating
- Mounting: Standard 5th wheel kingpin pattern
- Weight: 0 lbs (shipping weight varies)
- SKU: 2024122233
What's Included
- Helux Coil-Spring Pin Box assembly
- All necessary mounting hardware
- Installation instructions
| Model | Helux Coil-Spring 5th Wheel Pin Box |
|---|---|
| Capacity | 24,000 lbs. GTWR |
| Pin weight | 4,000 lbs. maximum |
| Construction | Forged steel with zinc plating |
| Mounting | Standard 5th wheel kingpin pattern |
| Weight (lbs) | 0 |
| Sku | 2024122233 |
- Will this fit my existing 5th wheel trailer? Yes, the Helux pin box uses standard mounting patterns and replaces most OEM pin boxes. Measure your current pin box opening to confirm compatibility.
- How does the coil-spring system work? The springs compress to absorb vertical forces from road bumps while maintaining lateral stability. This dual-action design smooths out the ride without sacrificing control.
- Is professional installation required? While mechanically inclined owners can install it, we recommend professional installation to ensure proper alignment and torque specifications.
- What's the warranty coverage? Curt offers a 1-year limited warranty against manufacturing defects. Elkhart RV Parts provides additional support for all purchases.
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.