Welcome to the forum.
Do you have a Cummins C8.3 (the precursor to the ISC)? If so, the Oshkosh chassis (precursor to FCCC) most likely used that C8.3 engine and in that era (and I'm taking it from some notes I have), many applications used a 062891-001
As Skip426 suggested, take a measurement of the canister and/or see if there are any markings on it. The measurements for the 062891-001 are approximately 9.75" OD x 24" to 26" L
If yours matches those measurements or you see any marking that match those numbers (or I believe the chassis manufacturers used the number 0420-HH2 at that time), then you can be relatively sure that is the one you'd need.
Here is a Farr but it can be cross-referenced as many brands will offer the same thing:
062891-001 by FARR
Also as mentioned, take the measurements of the inlet and outlet too if you are purchasing it locally.
At least you have somewhere to start. And we can see if anybody with the exact same coach you have will chime in and tell you exactly the part number you need with certainty.
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Linear Mode
