Eagle54, This may be a little off brand but the same subject. The Cub Cadet filters at least for their Diesel Mitsubishi line are very expensive. It appears they are made by and/or for Mitsubishi in Japan, then find their way to the US and resold by Cub/MTD. My OEM oil filter runs $17 – 20, hydraulic filter $60-80, and air filter $70- 90 from the dealers. The NAPA/WIX Gold oil filter was easy to come up a cross reference and is about $7. I really was annoyed at the price of the air filter and although I know how important it is thought the price was in left field. I spent a lot of time one day looking at the Donaldson, Wix, and Fleetguard sites and found a cross reference for the air filter I needed that was virtually identical to the OEM filter. It was used on a number of other pieces of equipment and also on many Kubota tractors. I bought a Kubota filter from a local Kubota dealer for under $25 thinking if it is good enough for a Kubota engine it was for a Mitsubishi as well. (I made a post on it under the CC section with a picture a year or so ago. You can search under the CC sections and probably find it. ) So my point is if you do some digging in the on-line information from other manufacturers you may find a filter you need that will still protect your equipment for a lot less money. There is nothing wrong with the OEM filters but there are some alternatives out there as well.