Gooseneck Couplers

Replace your trailer”s coupler with this self-latching coupler and never crawl into the bed of your truck to latch or unlatch the coupler agin. Our patented self-latching coupler fist 2 5/16″ gooseneck balls.

Replace your trailer”s coupler with this self-latching coupler and never crawl into the bed of your truck to latch or unlatch the coupler agin. Our patented self-latching coupler fist 2 5/16″ gooseneck balls.

Replace your trailer”s coupler with this self-latching coupler and never crawl into the bed of your truck to latch or unlatch the coupler agin. Our patented self-latching coupler fist 2 5/16″ gooseneck balls.

With the Defender gooseneck coupler from B&W, you get the best of both worlds. Not only does this coupler make hookup an absolute snap, but it also defends against trailer theft. The built-in lock can be engaged when your trailer is hooked up to your truck, thus preventing uncoupling. It can also be locked when your trailer is not hooked up, preventing would-be thieves from hooking your trailer up to their gooseneck ball.

B&W Defender Locking Gooseneck Coupler Inner and Outer Tube is a Heavy-duty gooseneck coupler latches and locks automatically. Built-in lock can be engaged when trailer is coupled and when trailer is unattached to help prevent towaway theft. Oversize, cone-shaped funnel eases hookup.

For flat bed trucks with recessed ball

Fits trailers with 4-1/2″ ID Sqaure tube

Our Part measures 4-1/2″ outside to outside and is manufactured with USA steel.  Make sure it fits your trailer downtube.  Some manufacturers use Import tubes, and many are Not sized consistently or are out of round or square.  PopUp assumes No responsibility for returns when incorrect measurements are taken. Please see return policy.

For flat bed trucks with recessed ball

Fits trailers with 4″ ID round tube

Our Part measures 4″ outside to outside and is manufactured with USA steel.  Make sure it fits your trailer downtube.  Some manufacturers use Import tubes, and many are Not sized consistently or are out of round or square.  PopUp assumes No responsibility for returns when incorrect measurements are taken. Please see return policy.

For flat bed trucks with recessed ball

Fits trailers with 4″ ID Sqaure tube

Our Part measures 4″ outside to outside and is manufactured with USA steel.  Make sure it fits your trailer downtube.  Some manufacturers use Import tubes, and many are Not sized consistently or are out of round or square.  PopUp assumes No responsibility for returns when incorrect measurements are taken. Please see return policy.

• Designed to replace Lippert 1621 and 0719 5th-wheel pin boxes
• Replaces your traditional 5th wheel Pin Box setup with a gooseneck connection
• Safety Chains Sold Separately 
• Replaces your traditional 5th wheel setup with a gooseneck connection
• Up to 24,000 lb. capacity 6,500 lb. max pin weigh
• Purchase verification required. Refer to instruction sheet for pin weight measuring process

• Designed to replace Young Frame 5th-wheel pin boxes width 12"
• Replaces your traditional 5th wheel Pin Box setup with a gooseneck connection
• Safety Chains Sold Separately 
• Replaces your traditional 5th wheel setup with a gooseneck connection
• Up to 24,000 lb. capacity 6,500 lb. max pin weigh
• Purchase verification required. Refer to instruction sheet for pin weight measuring process

• Designed to replace Lippert 1716,1116,0115
• Designed to replace Fabex 560,530,520,503,500
• Replaces your traditional 5th wheel Pin Box setup with a gooseneck connection
• Safety Chains Sold Separately 
• Replaces your traditional 5th wheel setup with a gooseneck connection
• Up to 24,000 lb. capacity 6,500 lb. max pin weigh
• Purchase verification required. Refer to instruction sheet for pin weight measuring process

• Designed to replace Dexter 221-0023-00
• Designed to replace Leland 7920, 7910, 7900
• Replaces your traditional 5th wheel Pin Box setup with a gooseneck connection
• Safety Chains Sold Separately 
• Replaces your traditional 5th wheel setup with a gooseneck connection
• Up to 24,000 lb. capacity 6,500 lb. max pin weigh
• Purchase verification required. Refer to instruction sheet for pin weight measuring process

• Designed to replace Fabex 300, 314 ,316, 330
• Designed to replace Lippert 0516
• Replaces your traditional 5th wheel Pin Box setup with a gooseneck connection
• Safety Chains Sold Separately 
• Replaces your traditional 5th wheel setup with a gooseneck connection
• Up to 24,000 lb. capacity 6,500 lb. max pin weigh
• Purchase verification required. Refer to instruction sheet for pin weight measuring process

• Designed to replace Dexter 221-0031
• Designed to replace Venture CJ13515,CJ13517
• Replaces your traditional 5th wheel Pin Box setup with a gooseneck connection
• Safety Chains Sold Separately 
• Replaces your traditional 5th wheel setup with a gooseneck connection
• Up to 24,000 lb. capacity 6,500 lb. max pin weigh
• Purchase verification required. Refer to instruction sheet for pin weight measuring process

• Designed to replace Fabex 665,663,660
• Replaces your traditional 5th wheel Pin Box setup with a gooseneck connection
• Safety Chains Sold Separately 
• Replaces your traditional 5th wheel setup with a gooseneck connection
• Up to 24,000 lb. capacity 6,500 lb. max pin weigh
• Purchase verification required. Refer to instruction sheet for pin weight measuring process

• Designed to replace Fabex 765,770,730 RBW 7019
• Replaces your traditional 5th wheel Pin Box setup with a gooseneck connection
• Safety Chains Sold Separately 
• Replaces your traditional 5th wheel setup with a gooseneck connection
• Up to 24,000 lb. capacity 6,500 lb. max pin weigh
• Purchase verification required. Refer to instruction sheet for pin weight measuring process

• Designed to replace Leland 7930 - 7.875"
• Replaces your traditional 5th wheel Pin Box setup with a gooseneck connection
• Safety Chains Sold Separately 
• Replaces your traditional 5th wheel setup with a gooseneck connection
• Up to 24,000 lb. capacity 6,500 lb. max pin weigh
• Purchase verification required. Refer to instruction sheet for pin weight measuring process