Popup Industries GN5 4" Round Straight Coupler for Semi-Tractor Rampage Products Seat frames are welded and

Seat frames are welded and powder coated to prevent rust or breakage

reduces the chances for trapped air

Direct Fit for many Injen intakes and/or universal applications

DOT and Transport Canada compliant for on-road use

Power coated for immediate use and durability or can painted to match

Popup Industries GN5 4" Round Straight Coupler for Semi-Tractor Rampage Products Seat frames are welded andPull your gooseneck trailer with a semi tractor or pickup mounted fifth wheel. Simply replace the coupler with a king pin. Easily switch back and forth. 2 SAE king pins are the industry standard and are suitable for use in all over the road applications. SPECIFICATIONS Popup Industries Round Straight Coupler For Semi Tractor. For trailers with 4 ID round tube Standard S. A. E. king pin with 10 round bolster plate fitted to 18 long square or round