Lmackattack Posted October 5, 2010 Share Posted October 5, 2010 On my RS I have a donaldson 2 outlet filter housing that takes 2 filters. It has 1 short / 1 tall filter elements that are seaparated by a metal plate. each element feeds a diffrent tube. What I want to know is why did they have 2 filter elements and is there a way to just to use a sungle filter element? I went searching for numbers and I found a sticker on the upper filter but I cant find a part number on my lower filter. I went to napa and carquest this week and cant find any part numbers that cross refrence... anyone have a part number for a single filter that fits this style housing?VIN RS786LST32474ThanksTrent Quote Link to comment https://www.bigmacktrucks.com/topic/16012-tip-turbine-air-filter/ Share on other sites More sharing options...
frantzevan Posted April 1, 2014 Share Posted April 1, 2014 If it's the same as the tip turbine double outlet setup the Fram filter numbers are CA1550 and CA1551. I was also curious if I could change this to a one filter setup. I worry about the sealing properly. I also wanted to see about switching to a k&n filter with an air ram. It would be nice to get the EGT's down without switching to a front mount intercooler. The old 285 is turned up about 20% and will see 30 pounds on a cold mourning. The EGT's never get to out of hand but will go above 1100. Quote Link to comment https://www.bigmacktrucks.com/topic/16012-tip-turbine-air-filter/#findComment-240220 Share on other sites More sharing options...
kscarbel2 Posted April 1, 2014 Share Posted April 1, 2014 On an eastern Mack, the smaller upper (8 inch tall) filter is a 57MD21A, and the larger lower (14 inches tall) filter is the 57MD31A. Mack also used to sell the two filters together in one box under the number 215SB194.A few Mack Westerns had unusual elements with Mack Western 5-digit part numbers (e.g. 57MD29301). However odds are the above information is applicable to your truck. Quote Link to comment https://www.bigmacktrucks.com/topic/16012-tip-turbine-air-filter/#findComment-240225 Share on other sites More sharing options...
39 Baby Mack Posted April 3, 2014 Share Posted April 3, 2014 Baldwin #'s upper #PA2438 lower #PA2439Ron Quote Link to comment https://www.bigmacktrucks.com/topic/16012-tip-turbine-air-filter/#findComment-240476 Share on other sites More sharing options...
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