Gooseneck Couplers
Gooseneck Couplers
SB5 9″ Offset – 4″ Round tube
Part measures 4″ outside diameter. Make sure it will fit as many of the China made tubes are not all sized consistently and many are under sized. PopUp will assume no responsibility for returns when incorrect measurements are taken.
Fits trailers with 4″ ID round tube
Part measures 4″ outside diameter. Make sure it will fit as many of the China made tubes are not all sized consistently and many are under sized. PopUp will assume no responsibility for returns when incorrect measurements are taken. Please see return policy.
Optimize Your Towing Setup with the SB5 4″ Round Tube Offset Adapter
PopUp Hitch designs equipment that ensures drivers can complete every tow with confidence and precision. Our SB5 9″ Offset 4″ Round Tube Gooseneck Adapter is designed for trailer owners who need additional clearance between their truck cab and trailer. This adapter features a standard kingpin with a 10” round bolster plate, making it an ideal solution for those who need to tow gooseneck trailers with a pickup-mounted fifth wheel. We provide dependable solutions tailored to meet the reliability your towing setup requires.
Important Sizing Note for Imported Trailer Tubes
We manufacture the SB5 to fit trailers with a 4-inch inside diameter round tube and build it with a 4-inch outer diameter body. Before completing your purchase, we highly recommend verifying the exact measurements of your trailer’s tube, particularly if it is an imported model. Some imported tubes are often manufactured slightly smaller than standard sizing, which may prevent proper compatibility with this unit.
Heavy-Duty Construction Meets Smart Design
Every inch of our offset adapter is engineered for long-term performance. From the solid construction to the reinforced components, we’ve designed it to withstand the demands of heavy-duty towing without compromising stability. We built the SB5 to deliver the strength our customers need. Our model provides an additional 9 inches of rearward offset, giving your trailer more space from the truck cab. That extra clearance plays a critical role when working with short-bed trucks or hauling bulky trailers.
Kingpin Towing Solutions You Can Rely On
At PopUp Hitch, we stand behind every product we build. The SB5 9″ Offset 4″ Round Tube is an example of how we combine innovation and functionality to support everyday towing challenges. If you’re using a gooseneck coupler, you can replace it with a kingpin adapter for more precise control and easier coupling. We proudly support our customers with quality products and knowledgeable services. We offer hitching solutions that work as hard as you do. Trust us for strong, secure, and purpose-built towing products.
Contact us today to explore the SB5 9″ Offset 4″ Round Tube and make every haul easier, safer, and more efficient.
- Standard king-pin with 10” round bolster plate fitted to 18” long square tube
- Pull a gooseneck trailer with a pickup mounted fifth wheel
- Fits standard gooseneck trailer coupler tubes
- Allows gooseneck trailers to be pulled with Semi-tractors
- Rated at 24,000 lbs
- Long lasting powder coat finish
SB5 is a 4″ round tube with 9″ offset with kingpin.
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Fits trailers with 4″ ID round tube
Part measures 4″ outside diameter. Make sure it will fit as many of the China made tubes are not all sized consistently and many are under sized. PopUp will assume no responsibility for returns when incorrect measurements are taken. Please see return policy.
Optimize Your Towing Setup with the SB5 4″ Round Tube Offset Adapter
PopUp Hitch designs equipment that ensures drivers can complete every tow with confidence and precision. Our SB5 9″ Offset 4″ Round Tube Gooseneck Adapter is designed for trailer owners who need additional clearance between their truck cab and trailer. This adapter features a standard kingpin with a 10” round bolster plate, making it an ideal solution for those who need to tow gooseneck trailers with a pickup-mounted fifth wheel. We provide dependable solutions tailored to meet the reliability your towing setup requires.
Important Sizing Note for Imported Trailer Tubes
We manufacture the SB5 to fit trailers with a 4-inch inside diameter round tube and build it with a 4-inch outer diameter body. Before completing your purchase, we highly recommend verifying the exact measurements of your trailer’s tube, particularly if it is an imported model. Some imported tubes are often manufactured slightly smaller than standard sizing, which may prevent proper compatibility with this unit.
Heavy-Duty Construction Meets Smart Design
Every inch of our offset adapter is engineered for long-term performance. From the solid construction to the reinforced components, we’ve designed it to withstand the demands of heavy-duty towing without compromising stability. We built the SB5 to deliver the strength our customers need. Our model provides an additional 9 inches of rearward offset, giving your trailer more space from the truck cab. That extra clearance plays a critical role when working with short-bed trucks or hauling bulky trailers.
Kingpin Towing Solutions You Can Rely On
At PopUp Hitch, we stand behind every product we build. The SB5 9″ Offset 4″ Round Tube is an example of how we combine innovation and functionality to support everyday towing challenges. If you’re using a gooseneck coupler, you can replace it with a kingpin adapter for more precise control and easier coupling. We proudly support our customers with quality products and knowledgeable services. We offer hitching solutions that work as hard as you do. Trust us for strong, secure, and purpose-built towing products.
Contact us today to explore the SB5 9″ Offset 4″ Round Tube and make every haul easier, safer, and more efficient.
- Standard king-pin with 10” round bolster plate fitted to 18” long square tube
- Pull a gooseneck trailer with a pickup mounted fifth wheel
- Fits standard gooseneck trailer coupler tubes
- Allows gooseneck trailers to be pulled with Semi-tractors
- Rated at 24,000 lbs
- Long lasting powder coat finish
SB5 is a 4″ round tube with 9″ offset with kingpin.
Made in America
What our customers are saying
“This is a 2019 Ford F-150 with 5’5” bed. I was worried about finding a product to get the clearance I needed to pull my horse trailer . My trailer is almost 79 inches wide . Installed the SB116 16” inch extension coupler on my trailer and I’ve pulled it several trips now and it works great. My trailer pulls great due to load is on the truck where it needs to be. Very well made and love the fact I don’t have to get up in the back of truck or reach over the bedside to hook up and unhook. The folks at PopUp Towing were great to deal with and answered all my questions.”
- Mark G.
“We installed a CAG (Connect-Adapt-Go) from PopUp Towing on a truck recently. It went in very easily. Instructions were very clear and we are very pleased in the outcome. We will definitely do more business with PopUp Towing.”
- Rick & Jean Horsch
“We purchased a CC2 Cushion Coupler by PopUp Towing. I’ll tell you what, after arriving home from the last horse show, we were amazed to find two cans of pop that were left on the dinette table still on the table. Now that’s a smooth ride!”
- Larry P.
“I was having trouble explaining my issue and determining a solution to my turning issue when towing my gooseneck trailer. A friend of mine said, you should try to call the guys at PopUp Towing as they helped solve his issues. Let me tell you, I spoke with two gentlemen at PopUp if I remember correctly their names were Derrick and Chance, those to guys seem to have more knowledgeable information than anyone I’ve spoken with in this industry. Years of valuable knowledge, and highly recommended if you have similar issues. Thanks again and I absolutely love the new RVGC complete pinbox replacement to allow me to tow my 5th wheel without the bulky 5th wheel hitch taking up my bed space.”
- Bill F.