My old MC5A w/8V71 Detroit is equipped with (4) Donaldson turbine type (dry) air cleaners. I was poking around in there the other day and pulled the elements. One of the surprises I found was that the elements were stamped
I got to wondering (after I found I couldn't see sunlight through them) what the chances were that and of the previous owners would have taken the time and affort to hunt up a supplier who could furnish them with original equipment filters. My answer? Not a chance?
This bus was built in 1968 and I suspect that these were the ORIGINAL elements. God knows, they showed years of rust. I went to NAPA and ordered 4 replacements...about $85 for the four.
I took the bus to the shop today....about 120 miles over 3 pretty good mountains. And while it didn't smoke prior to this ...pulling a steep grade...it didn't today either but it sure felt better when I needed to put my foot in it. ;
It's sort of like ....the car seems to ride a little better after you leave the car wash!