Yahoo Message Number: 12046 (http://groups.yahoo.com/neo/groups/Country-Coach-Owners/conversations/messages/12046)
Hi Mike,
If you are lucky enough to have a Cummins engine repair facility close to you, they will stock it. Or, a Navistar truck dealer should have it, or they will order it in for you. Cummins should also check your SCA level for you if you bring them a coolant sample. Navistar will probably do the same.
Fred Sage '01 Magna