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Topic: Red Top M11 (Read 668 times) previous topic - next topic

Red Top M11

I was under the impression that all M11 engines had the black top and that ISM engines had the red top—but now I'm not certain. I also had thought that the 450 Hp ISM began to be installed in the 1997 models but more recently I've read that they began with the 1998 models. Can any straighten out my confusion? Thanks!
David and Carolyn Osborn
1995 U320C SE 40' Build 4726 Feb 1995
FMCA 147762
Motorcade 17186

Re: Red Top M11

Reply #2 –
That is also my understanding that red tops will be ISM 450. My 2000 is a red top ISM 450.
Alan Fink
Waupun, WI
2000 Blue Bird Wanderlodge  LX40
2018 F150 4x4
2020 Jeep Wrangler Unlimited  Rubicon JL

Re: Red Top M11

Reply #3 –
If a red valve cover in '97 it is either the M11 Celect or the Cel;ect Plus. (the engines between M11 and the ISM) Totally different than the M11 with the black valve cover. The ISM is same as the Celect Plus but they added the Interact System (ISM) these could be in the real late '98 coaches.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Red Top M11

Reply #4 –
Learn something new every day, I thought the Cummins N14 was known as the "Red Top" engine.
 
Justin & Cathy Byrd
1995 U280 "Old Faithful"
36' Build #4673
C8.3 Cummins
Allison MD3060R 6 speed - retarder
Powertech 10KW  4cyl Kubota

Re: Red Top M11

Reply #5 –
ISM 450 with red top in my sold 2000 U320
Joe & Dottie Allen
Sold!  December 2023.      2000 U320; build # 5645
Our coach " Maxine"
Motorcade #  15922;  Escapee 150950; FMCA F330833; Boondockers Welcome;  Harvest Hosts;  Thousand Trails
'98 U320 from 2000-'06
USAF '62-'66

"Do not spoil what you have by desiring what you have not; remember that what you now have was once among the things you only hoped for." ―Epicurus

Re: Red Top M11

Reply #7 –
Also, Cummins is no longer supporting N-14 engines, rebuilds, parts etc.. Take care of what you have.
Eric, Mary and Carl the jack russel terrorist
1997 U320, #5143, w/450 hp, 6.9 on the richter scale
Sammie the toad
Live Free or Die