CURT Helux Coil-Spring Gooseneck Pin Box | 2024044577 | 3,900 lb Max Pin Weight | 20K

Take your RV towing experience to the next level with the CURT Helux Coil-Spring Gooseneck Pin Box (Part #2024044577). Superior ride quality, increased truck bed cargo space, and uncompromising durability — the gooseneck alternative to traditional 5th wheel setups. Proprietary coil-and-shock technology reduces force on the RV frame and body by up to 30% vs similar pin boxes. Rated for pin weights up to 3,900 lb (min 2,200 lb) and gross trailer weight up to 20,000 lb. Auto-latching coupler connects to any standard 2-5/16" gooseneck ball. Approved for use on all Lippert RV frames (will not void warranty). Backed by limited lifetime warranty.

⭐ 2024 SEMA Show Award Winner — "Best New Exterior Accessory"

Standout industry credential: the CURT Helux Coil-Spring pin box line won "Best New Exterior Accessory" at the 2024 SEMA Show in Las Vegas — one of the biggest stages in the automotive aftermarket. The award recognized Helux for its groundbreaking impact on RV ride comfort and durability, setting a new standard in towing technology.

⭐ Gooseneck Configuration — Free Up Your Truck Bed

Standout benefit vs traditional 5th wheel pin box setups: the gooseneck configuration allows full use of your truck bed for tools, gear, ATVs, cargo, or whatever else the road demands. Meaningful for:

• Work trucks that need bed cargo space even while towing
• Overlanders and outdoor enthusiasts hauling gear alongside the RV
• Recreational users who want maximum utility from their truck

Uses a standard 2-5/16" gooseneck ball connection — the same ball you'd use for gooseneck horse trailers or other gooseneck loads.

⭐ 30% Force Reduction on RV Frame & Body — Standout Feature

Standout engineering benefit vs traditional and airbag-style pin boxes: reduces force transferred into the RV frame and body by up to 30%. Meaningful long-term benefits:

• Reduced wear and tear on RV frame, walls, cabinets, and interior components
• Extended structural life of the trailer
• Less shifting of cargo and gear during transit
• Smoother, more controlled ride for passengers and pets
• Reduced stress at the coupling point

⭐ Proprietary Coil-Spring & Shock Absorber Technology

Standout design vs traditional fixed pin boxes and airbag systems:

• Automotive-grade coil spring — forgiving, consistent ride quality
• Integrated shock absorber — dampens chucking, jarring, and vibration
• Minimizes stress at the coupling point
• Especially noticeable comfort improvement for passengers, pets, and mounted cargo

⭐ Virtually Maintenance-Free — No Airbags, No Adjustments

• No air pressure to check
• No components to adjust
• No break-in period — full performance from day one
• Coil spring outperforms and outlasts air systems

⭐ Auto-Latching Coupler — Streamlined Hookup

Standout convenience feature: auto-latching coupler connects quickly and securely to any standard 2-5/16" gooseneck ball. Meaningful for a faster, safer hookup process — get on the road faster.

⭐ Pin Weight Selection — Sized for Your Trailer

Critical sizing information: The right Helux pin box depends on your trailer's loaded pin weight. This model (2024044577) is optimized for:

• Minimum pin weight (unloaded): 2,200 lb
• Maximum pin weight (loaded): 3,900 lb
• Gross trailer weight capacity: Up to 20,000 lb

Complete Helux Gooseneck Pin Box Selection Chart

Select by your loaded pin weight — take your trailer to a certified scale (e.g. CAT Scale) with cargo, water, and all travel-ready gear. All gooseneck variants share the 20,000 lb capacity:

Prefer 5th Wheel Instead?

The Helux is also available in a 5th wheel configuration — meaningful for buyers with traditional 5th wheel hitches already installed. 5th wheel Helux uses the Rhino Box bolt-mounting pattern for direct replacement:

• Helux 5th Wheel 2,600 lb Max Pin Wt / 18K (2024044568)
• Helux 5th Wheel 2,950 lb Max Pin Wt / 18K (2024044567)
• Helux 5th Wheel 3,500 lb Max Pin Wt / 18K (2024044569)
• Helux 5th Wheel 4,000 lb Max Pin Wt / 24K (2024122233)
• Helux 5th Wheel 4,850 lb Max Pin Wt / 24K (2024044570)
• Helux 5th Wheel 5,400 lb Max Pin Wt / 24K (2024044571)
• Helux 5th Wheel 6,200 lb Max Pin Wt / 24K (2024044572)

⭐ Approved for All Lippert RV Frames — Will NOT Void Warranty

Meaningful compatibility credential: the CURT Helux pin box is fully approved for use on all Lippert RV frames and will not void your Lippert frame warranty.

Rugged Construction & Safety Certification

• Premium steel construction
• Black powder coat finish — resists wear and corrosion
• Fully tested to SAE J2638 safety standards

⚠️ Purchase Verification Required

Important buyer note: CURT requires purchase verification for Helux pin boxes to ensure correct sizing. Weigh your fully-loaded trailer at a certified scale with everything you'd normally have on board when traveling. Refer to the CURT instruction sheet for the proper pin weight measuring process.

⚠️ Professional Installation Required

The pin box assembly weighs several hundred pounds. Installation and removal requires a minimum of two people. A forklift may be used to lift the pin box into position. The trailer should always be towed while level — adjustment of pin box mounting height, tow vehicle height, or suspension may be necessary to achieve a level towing condition. Installation should be performed by a qualified RV service technician unless you have prior experience with pin box replacement and the appropriate equipment.

Limited Lifetime Warranty

CURT backs the Helux pin box with a limited lifetime warranty (one-year finish, one-year parts).

⚠️ Freight Shipping — No Returns Due to Product Size

Important buyer note: this item ships freight due to its size and weight, and is not eligible for return. Please carefully verify all specifications, compatibility, and fitment before ordering — including [product-specific verification points].

Genuine CURT OEM

Key Features

• Genuine CURT OEM Helux Coil-Spring Gooseneck Pin Box
• Part Number: 2024044577
• UPC: 612314057948
• ⭐ 2024 SEMA Award Winner — Best New Exterior Accessory
• ⭐ Gooseneck configuration — frees up truck bed cargo space
• ⭐ 30% force reduction on RV frame and body vs similar pin boxes
• ⭐ Proprietary coil-spring + shock absorber technology
• ⭐ Virtually maintenance-free — no airbags, no adjustments, no break-in
• ⭐ Auto-latching coupler — quick, secure hookup to any 2-5/16" gooseneck ball
• Pin weight range: 2,200–3,900 lb
• Gross trailer weight capacity: Up to 20,000 lb
• ⭐ Approved for Lippert RV frames — will not void warranty
• Premium steel construction with black powder coat finish
• SAE J2638 safety standard tested
• Limited lifetime warranty (one-year finish, one-year parts)
• ⚠️ Ships freight — not returnable due to product size — verify fitment before ordering

Specifications

• Brand: CURT
• Part Number: 2024044577
• UPC: 612314057948
• Product Line: Helux Coil-Spring
• Type: Gooseneck RV Pin Box (Shock-Absorbing)
• Technology: Proprietary coil-spring + shock absorber
• Connection: 2-5/16" gooseneck ball with auto-latching coupler
• Minimum Pin Weight (Unloaded): 2,200 lb
• Maximum Pin Weight (Loaded): 3,900 lb
• Gross Trailer Weight Capacity: Up to 20,000 lb
• Lippert Frame Approval: Yes (will not void Lippert frame warranty)
• Construction: Premium steel
• Finish: Black powder coat
• Safety Standard: SAE J2638 tested
• Award: 2024 SEMA Show Best New Exterior Accessory
• Warranty: Limited lifetime (one-year finish, one-year parts)
• Purchase Verification: Required — refer to CURT instruction sheet for pin weight measuring process
• Shipping: Freight required (product size)
and
• Returns: Not eligible due to product size