Eliminate trailer sway and improve towing stability with a heavy-duty gooseneck pin box The Curt™ Helux Coil-Spring Gooseneck Pin Box delivers superior towing stability with a 20,000 lbs capacity and 2,350 lbs pin weight rating. Its coil-spring design absorbs road shocks for smoother rides. Compatible with most gooseneck trailers requiring a 2-5/16″ ball.
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✓ Authorized Lippert Dealer✓ OEM Authentic Curt™ ProductProfessional-Grade Gooseneck Towing Solution for Heavy-Duty Trailers
Tired of white-knuckle towing experiences with your heavy trailer? Standard pin boxes often transmit every bump directly to your truck, causing fatigue and reducing control. The Curt™ Helux Coil-Spring Gooseneck Pin Box solves this with its innovative shock-absorbing design that maintains positive trailer connection while dampening road vibrations.
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Features
- 20,000 lbs gross trailer weight rating – Handles even the heaviest gooseneck trailers
- 2,350 lbs pin weight capacity – Distributes tongue load evenly for stable towing
- Coil-spring suspension system – Absorbs 40% more road shock than rigid designs
- 2-5/16″ forged ball socket – Precision-machined for secure connection
- Dual-stage latching mechanism – Positive engagement with visual and audible confirmation
- Galvanized steel construction – Resists corrosion from road salt and moisture
Unlike basic pin boxes that transfer every bump to your tow vehicle, the Helux’s progressive-rate coil springs act as a buffer between trailer and truck. This means less driver fatigue on long hauls and reduced wear on both your RV and tow vehicle components.
The patent-pending latching system provides unmatched security with dual-stage engagement. You’ll both hear and feel the positive connection, eliminating guesswork when hitching up. The integrated breakaway switch wiring keeps your trailer brakes functioning properly in emergencies.
Technical Specifications
- Brand: Curt™
- Model: Helux Coil-Spring Gooseneck Pin Box
- GTWR: 20,000 lbs
- Pin Weight Capacity: 2,350 lbs
- Ball Size: 2-5/16″
- Construction: Galvanized steel
- Weight: 0 lbs (shipping weight varies)
- SKU: 2024044575
What’s Included
- Curt™ Helux Coil-Spring Gooseneck Pin Box assembly
- All necessary mounting hardware
- Installation instructions





