The 91-93 12v Nissens 60021 radiator is not set up the same as the 24v radiator nor does it have exactly the same cooling capacity. That being said I bet you could make 12v radiator work in 24v as I made 24v one work in my 12v 164L. You would have to adapt lower hose plumbing to attach to 12v radiator outlet on driver's side. Also 24v radiator has bracket on passenger side for oil cooler to attach to it. However, looks like the 12v Nissens 60021 one has those brackets. Note 12v lower outlet on driver's side as is the thermal switch for cooling fan.