Duke4AZ, you're right what a ratchety site the Cub parts site is. I plugged in my oil filter, $18.77;air, $52.78; and hydraulic, $42.21, all for a 7234 Mitsu. model. The oil filter seemed to be about $6 more than I remember the dealer wanted of $12-13 last time I priced it. The Hydraulic price seemed fair, along with the air filter. I bought an air filter this spring when one of the dealers quoted in the $80-90 range. I then did some heavy research between I think the Donaldson Filter site and some others and came up with the identical filter that is made and used on several Kubotas. I paid $23.64 at Kubota. I figure if it was good enough for a Kubota engine it had to be ok for my 9 y.o. Cub. I posted some pictures of the two filters and price info when I bought it I think this spring.