Sometimes the only difference or variation may be the size of the can, a few microns of difference in filter media, with or without bypass,check valves,(operating position), etc. In some cases maybe even color of the paint on the can, or a change in gasket design (a few millimeters diameter or thickness, etc) and a lot of aftermarket "will fit" cross references are based on not much more than thread and gasket... as in they'll fit and they'll seal , but whether they work as original design called for is anybody's guess. - for example, if you have a filter that should mount in a vertical orientation but thread-down , might require a drainback valve, even if it is otherwise identical to a filter that mounts threads-up (which would not need anti-drainback) , using a filter with no drainback check valve where one is required would mean engine will spend several seconds with no lubrication. (and in some cases, oil pump can lose its prime) So, not always a wise thing to trust an aftermarket cross-reference without detailed specs on the filter (and the filter it is replacing)38racing wrote:On the subject of crossing oil filters. A friend asked me about an alternative for his Kubota. I crossed it to a ph2808. Then I googled for a cross on it. Got a list of 584 filters . in each brand there are many. There are even 5 kubotas. If Kubota has 5 different numbers certainly the filters are somehow different? Same for wix.
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