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21K/ 1.5K - 3.5K Pin Weight Gen-Y Torsion-Flex (Auto Latch) 5th Wheel to Gooseneck 2-5/16 Coupler

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21K/ 1.5K - 3.5K Pin Weight Gen-Y Torsion-Flex (Auto Latch) 5th Wheel to Gooseneck 2-5/16 Coupler
GEN-Y Hitch
1,269 Write a Review
Silver Vein
21,000 lbs
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21K/ 1.5K - 3.5K Pin Weight Gen-Y Torsion-Flex (Auto Latch) 5th Wheel to Gooseneck 2-5/16 Coupler

21K/ 1.5K - 3.5K Pin Weight Gen-Y Torsion-Flex (Auto Latch) 5th Wheel to Gooseneck 2-5/16 Coupler


Introducing the Gen-Y Hitch Fifth Wheel King Pin - an innovative solution that combines the functionality of a fifth-wheel and gooseneck hitch, providing a seamless towing experience for your fifth-wheel trailer. This shock-absorbing pin box is designed to enhance the stability and safety of your rides, eliminating the need for air bags and minimizing maintenance with its all-in-one design.

Key Features:

  • 5th-Wheel-to-Gooseneck Adaptability: This adapter box lets you tow your 5th-wheel trailer using your truck’s existing gooseneck hitch, integrating seamlessly with your setup.
  • Shock-Absorbing Design: Engineered like a torsion axle, this pin box limits the transfer of road shock between the trailer and truck, significantly reducing chucking and rough motion, ensuring a smooth and steady ride.
  • Easy and Secure Hookup: Features a Self-latching coupler that automatically engages when the hitch ball is positioned in the socket, complemented by a SnapLatch pull rod for quick uncoupling without the need to climb into your truck bed.
  • Durable Construction: Built with heavy-duty steel and a protective powder coat finish, it resists wear and corrosion while providing substantial durability and longevity.
  • Simplified Installation: The pin box mounts effortlessly using existing bolts, facilitating a simple bolt-on installation process.


  • Compatibility: Designed to replace Lippert 1621 and 1621 HD 5th-wheel pin boxes.
  • Towing Capacity: Supports up to 21,000 lbs, accommodating a wide range of towing needs.
  • Pin Weight Capacity: Ranges from 1,500 lbs to 3,500 lbs, versatile for various load requirements.
  • Ball Size: Standard 2-5/16", fitting most gooseneck hitch setups.
  • Warranty: Backed by a 5-year limited warranty for peace of mind.

Installation Notes:

  • Break-In Period: Recommended 1,000 miles to ensure optimal performance and reliability.
  • Weight Calibration: Ensure the pin weight is within the specified range for effective shock absorption.
  • Reduced Clearance Alert: Be mindful of potentially reduced clearance during turns due to the shorter structure compared to traditional Lippert pin boxes.

Built-In Shock Absorption:

The internal structure of the Gen-Y Hitch torsion pin box includes pivot points allowing dynamic movement between the trailer box and the coupler tube. As the trailer moves, the coupler tube adapts, reducing the impact of bumps and jerks. The built-in torsion mechanism consists of tubes with inner bars surrounded by rubber cords that twist to absorb shocks, protecting both your trailer and truck from undue stress.

User-Friendly Operation:

The automatic latching mechanism simplifies the coupling process, instantly securing the hitch ball in the coupler. For disconnection, the external SnapLatch pull rod allows for easy uncoupling, eliminating the need to access the truck bed, enhancing convenience and safety.

This Gen-Y Hitch Fifth Wheel King Pin is the perfect upgrade for anyone looking to improve their towing experience with a combination of advanced shock absorption, robust construction, and user-friendly features, ensuring a smoother, safer journey with your fifth-wheel trailer.

Pin Weight Capacity Pinbox Type Part#/ Link
1.5K – 3.5K 21K LCI 1621 / 1621 HD and 1116* / 1716* **shims needed GH-8045AL
2.5K – 4.5K 30K LCI 1621 / 1621 HD and 1116* / 1716* **shims needed GH-8055AL
3.5K – 5.5K 30K LCI 1621 / 1621 HD and 1116* / 1716* **shims needed GH-8065AL
4.5K – 6.5K 30K LCI 1621 / 1621 HD and 1116* / 1716* **shims needed GH-8075AL
1.5K – 3.5K 21K Rhino Box GH-8046AL
2K – 4.5K 30K Rhino Box GH-8056AL
3.5K – 5.5K 30K Rhino Box GH-8066AL
4.5K – 6.5K 30K Rhino Box GH-8076AL
1.5K – 3.5K 21K Turning Point GH-8047AL

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