5500 vs 5525 filters

[magyarbacsi]

I was looking at th difference in price and part nos. for the filters on the 5500 and 5525 model. Both use the same motor, 186 cc, identical hp. 54, .5 gal/min difference in the hydraulic flow. So why different filters.
For example, per one web site, hydraulic filter for 5500, $15-$17, for the 5525$28-$33. The other filters are fairly close, give and take a dollar or two.

 

[10865]

Engine oil filters are the same, hydraulic filter is different. 5500 has early and late air filters which are different. I've got the engine oil filters @ $9 on my cart at PARTS FOR MAHINDRA TRACTOR, BRANSON, ZETOR TRACTOR - BILL’S TRACTOR
Bill