I bought an air filter from K&N for my Universal 25XPB. Measure the diameter of your intake. One of these should fit:
https://www.knfilters.com/air-filters/universal.html However, I've been using my supply of OEM filters and have never installed the K&N one. -- Dennis C. Touche' 35-1 #83 Mandeville, LA On Wed, Jun 29, 2022 at 3:52 PM CHARLES SCHEAFFER via CnC-List < cnc-list@cnc-list.com> wrote: > Hey guys, > > A new air filter for my Universal M4-30 cost $17 and which seems expensive > for a simple ring of foam rubber sown like a bracelet. I removed the old > oil caked foam from the little screen and cleaned it up with solvent before > installing the new one and had to flatten the venturi to get a good fit. > The parts guy said it was more of a silencer than a filter. Anybody know > of a better air filter for a diesel engine like mine? > > Chuck Scheaffer Resolute 1989 C&C 34R >
