GREENSBURG, Ind. — A rollover involving one of his tanker trucks has prompted an Indiana-based entrepreneur to design an upper coupler that promises to improve safety and extend trailer life. Elvin ...

When a badly corroded upper coupler assembly on a tank trailer caused a roll-over several years ago, Elvin Knollman began thinking of ways to prevent that insidious and almost invisible damage. The ...

Strick Trailers has announced the launch of the DuoPlug, a device that keeps debris out of the internal cavities of the upper coupler assembly while allowing moisture to escape. Strick developed the ...

Great Dane Trailers is recalling approximately 225 model year 2025 Champion dry van trailers in which missing kingpin welds may prevent the upper coupler from securely connecting the trailer. An ...

SAF-Holland has introduced its new removable and replaceable Holland 2-in. AAR Kingpin system for hot dip galvanized upper couplers.Designed to meet AAR specifications, the system features a specially ...

SAF-Holland’s 2-inch AAR Kingpin system for hot-dip galvanized upper couplers features a specially machined kingpin housing and kingpin. The kingpin housing is welded into the trailer’s upper coupler ...

It’s easy to neglect a trailer coupler even though it’s that one small link that can lead to a big disaster should components suddenly fail. A quick Google search on the subject revealed ‘Truck ...

Semitrailer drivers have a lot of responsibility. No process is more important than the proper coupling of tractor to trailer, which includes proper inspection to ensure a safe connection. “Since the ...

It’s a chunk of steel about the size of a fist and it’s all that separates you from, well, separation. It’s your trailer kingpin, pound for pound perhaps the toughest component in your truck fleet.