"will fit" filters are not necessarily the best choice, even if the filter media or quality is better than the OEM recommended one. There is more to suitability of an oil filter than simply the dimensions and filter media. Buying a filter that was designed for an engine of particular oil flow parameters means that it may not be appropriate for another engine with the same oil filter adapter block.
Oil filters have specified back-pressure and bypass valve specifications. The filter itself is an integral part of the flow and pressure characteristics of the engine's pressurized oil system. A specific amount of back-pressure flows the oil at the rate the engine manufacturer finds most appropriate. As well, each filter has a pressure relief valve that opens and holds a specific maximum pressure when either the oil is old, cold (viscous), or the filter paper is loaded beyond capacity. This too, ensures that engine oil pressure/flow is kept within a tolerable band. Using "will fit" substitutes will be less likely to cause problems on larger engines, due to the lower differentials in flow characteristics from one four cylinder to another, especially when such filters are made for high-production number vehicles.
I'm not saying that aftermarket filters won't work on a Truckmount engine. What I am saying is that you don't want to select a filter on dimensions, reputation, or perceived value, alone. It is important to consider the compatibility of its specifications, which a Fram, Wix, Delco, etc, crossover chart many not give when applying to a TM-style industrial near-static speed engine. If you are "hell bent" to go aftermarket, know the back-pressure of normal flow versus bypassed flow of the filter you are selecting, and the same spec of the OEM recommended filter for comparison.