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5th Wheel Pin Box from CURT by Lippert5th Wheel Pin Box from CURT by Lippert

5th Wheel Pin Boxes

CURT 5th wheel pin boxes are packed with strength and advanced technology to offer superior comfort and confidence when towing your heavy-duty trailer. We offer a variety of styles and weight capacity options to ensure the perfect complement to your 5th wheel trailer, including innovative designs like our cushioned, shock-absorbing kingpin boxes. CURT also offers industry-first coil-spring pin boxes that greatly reduce chucking, increase ride comfort, and are conveniently maintenance-free.

Need help choosing the right pin box?

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CURT Helux Coil-Spring 5th Wheel Pin Box, 18,000 lbs. Capacity View Product
  • New
Curt™ CURT Helux Coil-Spring 5th Wheel Pin Box, 18,000 lbs. Capacity

SKU: HELUX-18K-FIFTH-WHEEL

from $1,570.95
CURT Flex Air® Pin Box - 21, 000 Lbs. View Product
Curt™ CURT Flex Air® Pin Box - 21, 000 Lbs.

SKU: 807711

$1,981.95
CURT Air Ride™ Pin Box - 21,000 Lbs. View Product
Curt™ CURT Air Ride™ Pin Box - 21,000 Lbs.

SKU: 807710

$1,626.95
CURT L05 Air Ride™ Pin Box - 21,000 lbs View Product
Curt™ CURT L05 Air Ride™ Pin Box - 21,000 lbs

SKU: 158778

$1,609.95
CURT L05 Flex Air® 5th Wheel Pin Box - 21,000 lbs. View Product
Curt™ CURT L05 Flex Air® 5th Wheel Pin Box - 21,000 lbs.

SKU: 369535

$2,120.95
CURT M15 Flex Air® Pin Box - 18,000 lbs View Product
Curt™ CURT M15 Flex Air® Pin Box - 18,000 lbs

SKU: 328484

$1,876.95
Gooseneck Connect™ 21K View Product
Lippert Gooseneck Connect™ 21K

SKU: 2020043670

$1,138.95
Curt Rota-Flex™ Pin Box - 21,000 Lbs. View Product
Curt™ Curt Rota-Flex™ Pin Box - 21,000 Lbs.

SKU: 807712

$1,019.95
CURT M19 Rota-Flex™ Pin Box - 19,000 lbs View Product
Curt™ CURT M19 Rota-Flex™ Pin Box - 19,000 lbs

SKU: 176440

$944.95
CURT L05 Rota-Flex™ SHD Pin Box - 21,000 lbs View Product
Curt™ CURT L05 Rota-Flex™ SHD Pin Box - 21,000 lbs

SKU: 328329

$993.95
CURT L05 Rota-Flex™ Pin Box - 18,000 lbs View Product
Curt™ CURT L05 Rota-Flex™ Pin Box - 18,000 lbs

SKU: 328330

$901.95
L05 SHD Extended Pin Box - 21,000 lbs View Product
Lippert L05 SHD Extended Pin Box - 21,000 lbs

SKU: 1387883

$842.95
L07 Extended Pin Box - 15,500 lbs View Product
Lippert L07 Extended Pin Box - 15,500 lbs

SKU: 1191201

$709.95
L05 Standard Pin Box - 15,500 lbs View Product
Lippert L05 Standard Pin Box - 15,500 lbs

SKU: 1191191

$778.95
L05 Extended Pin Box - 18,000 lbs View Product
Lippert L05 Extended Pin Box - 18,000 lbs

SKU: 1191151

$739.95
M19 Retracted Pin Box - 19,000 lbs View Product
Lippert M19 Retracted Pin Box - 19,000 lbs

SKU: 1270271

$740.95
M15 Extended Pin Box - 15,500 lbs View Product
Lippert M15 Extended Pin Box - 15,500 lbs

SKU: 119117

$843.95
CURT Helux Coil-Spring 5th Wheel Pin Box, 2,600 lbs. Pin Weight, 18,000 lbs. Capacity #2024044568 View Product
  • New
Curt™ CURT Helux Coil-Spring 5th Wheel Pin Box, 2,600 lbs. Pin Weight, 18,000 lbs. Capacity #2024044568

SKU: 2024044568

$1,570.95
CURT Helux Coil-Spring 5th Wheel Pin Box, 2,950 lbs. Pin Weight, 18,000 lbs. Capacity #2024044567 View Product
  • New
Curt™ CURT Helux Coil-Spring 5th Wheel Pin Box, 2,950 lbs. Pin Weight, 18,000 lbs. Capacity #2024044567

SKU: 2024044567

$1,612.95
CURT Helux Coil-Spring 5th Wheel Pin Box, 3,500 lbs. Pin Weight, 18,000 lbs. Capacity #2024044569 View Product
  • New
Curt™ CURT Helux Coil-Spring 5th Wheel Pin Box, 3,500 lbs. Pin Weight, 18,000 lbs. Capacity #2024044569

SKU: 2024044569

$1,654.95
CURT L05 Flex Air® Pin Box - 18,000 lbs View Product
Curt™ CURT L05 Flex Air® Pin Box - 18,000 lbs

SKU: 328492

$1,966.95

Low Stock

CURT Helux Coil-Spring 5th Wheel Pin Box, 24,000 lbs. Capacity View Product
  • New
Curt™ CURT Helux Coil-Spring 5th Wheel Pin Box, 24,000 lbs. Capacity

SKU: HELUX-24K-FIFTH-WHEEL

Out of Stock

CURT Helux Coil-Spring Gooseneck Pin Box, 20,000 lbs. Capacity View Product
  • New
Curt™ CURT Helux Coil-Spring Gooseneck Pin Box, 20,000 lbs. Capacity

SKU: HELUX-20K-GOOSENECK

Out of Stock

CURT L03 Air Ride™ Pin Box - 21,000 Lbs. #90300985 View Product
Curt™ CURT L03 Air Ride™ Pin Box - 21,000 Lbs. #90300985

SKU: 155925

$1,604.95

Out of Stock

CURT Rota-Flex 5th Wheel Pin Box Hitching UpCURT Rota-Flex 5th Wheel Pin Box Hitching Up

Find a 5th Wheel Pin Box You Can Trust

A 5th wheel kingpin is a key component in your towing connection, and having the right pin box on your trailer is vital for ensuring the strength and reliability of that connection. If you're looking for solutions to 5th wheel chucking, read our complete guide on how to correct 5th wheel chucking. 

CURT pin boxes are engineered and tested for heavy-duty towing applications. They are constructed from high-strength steel, providing a rock-solid foundation and complementing our robust line of 5th wheel hitches. Most of our pin boxes are adjustable to fit your unique RV or other trailer, and they are available in a range of weight capacities.

To enjoy more comfort and control while towing your 5th wheel rig, we also offer shock-absorbing 5th wheel boxes, featuring built-in cushion isolators and shock-absorbers to reduce jerking, jarring, and vibrations coming from the trailer.

Whether you’re pulling your 5th wheel camper across the country on another road trip adventure or towing machinery to the next jobsite, our 5th wheel pin boxes are built to go the distance and instill confidence with every mile.

Related Blogs

  • How to Choose the Best 5th Wheel Pin Box for Your Rig

    How to Choose the Best 5th Wheel Pin Box for Your Rig

    How to Choose the Best 5th Wheel Pin Box for Your Rig

    In this guide, we’ll walk through how to choose the best 5th wheel pin box for your 5th wheel trailer. Our goal is that you’ll come away from this guide feeling confident and ready to make an informed decision that fits your lifestyle, existing equipment, preferences, and budget.

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  • Introducing the CURT Helux™ 5th Wheel Pin Box

    Introducing the CURT Helux™ 5th Wheel Pin Box

    Introducing the CURT Helux™ 5th Wheel Pin Box

    The CURT Helux™ 5th wheel pin box combines advanced spring coil and shock technology to absorb jerking or bouncing movements, protecting the trailer, the truck, and the contents of both. 

    Read more
  • Towing a fifth wheel vs travel trailer

    5th Wheel vs. Travel Trailer: Understanding the Difference

    5th Wheel vs. Travel Trailer: Understanding the Difference 

    In this blog, we will take a look at the differences between 5th wheels and travel trailers, two common categories of RV trailers. While neither type is necessarily better than the other, comparing their size, features, towing requirements, off-roading abilities and price can help determine which one is right for your adventures. 

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