Dimensions of B&W 5th Wheel to Gooseneck Pin Box for Lippert 1621 BW73RV

Updated 06/09/2026 | Published 05/28/2026

Question:

I have a Jayco NorthPoint 310 RLTS, with GVWR of 15,000 and a 1621HD pinbox. I am interested in replacing the pinbox with the BandW 5th wheel to gooseneck pinbox adapter Can someone measure the hitch for me? I need to know how tall the underside clearance is at 25inch away from the ball center. Can you put a carpenter square on the bed plane and measure from the ball coupler center back to the first row of bolt holes? How high up are the bolt holes from the bed plane. I have a custom bed with gooseneck ball in a well. My bed is like a RAMbox but not the same. The bed is 52” wide, but the side walls are just 15” tall. Since the pinbox swivels in the bed, I want to know what it might come in contact with as the trailer turn to the side.

asked by: Albert C

Expert Reply:

Hey Albert, we were able to get that dimension from B and W thanks to you bugging them so I attached the picture below! Sorry it took so long to get this but with the # BW73RV at the time of your message not being in stock for us we were at mercy of whether or not B and W could get us the requested dimensions.

expert reply by: Jameson C