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10-03-2015, 07:16 PM
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#1
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Senior Member
Join Date: Aug 2012
Posts: 852
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Cat 525 hp
Looking at a 2006 coach with 525 hp Caterpillar engine. I have a 3126B CAt that we're very happy with.
What can be expected of the bigger, newer Caterpillar in terms of reliability and performance ?
__________________
1998 Newmar Dutch Star, 3126B Cat/ Freightliner
2003 Honda Element
" Don't let the same dog bite you twice "
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10-03-2015, 07:27 PM
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#2
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Should be better than a Cummins ISX for reliability, but probably more expensive to repair.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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10-04-2015, 10:51 AM
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#3
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Senior Member
Join Date: Dec 2009
Posts: 1,920
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Can't comment on how expensive to repair, I've never had a repair. I replaced the belt, and it was not cheap, but I've never had to buy one for a Cummins. Problem is it is a bit of an odd size, but that is because of the coach manufacturer.
I get about 7 mpg pulling a Suburban in the mountains. Not so bad. Pulls well, loves to climb, never let me down.
You do have to remember that aside from the engine, there is the way it was installed by the coach maker. The one time mine wouldn't start it was the ignition lead to the starter solenoid that had corroded off because Monaco didn't use a heat-shrink connector. Fixed it myself, since it was below freezing in a snow storm I wasn't too happy with Monaco that morning.
__________________
Paul
2006 Patriot Thunder C13 Allison 4000
2010 Ford Flex Ecoboost AWD
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10-04-2015, 05:41 PM
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#4
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Senior Member
Join Date: Jan 2011
Location: Santa Clarita, CA
Posts: 929
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I love my Kitty CAT C13 525hp. No matter how long it sits it starts right up, it pulls beautifully on hills once you learn to drive it (lower rpms are best) since it makes its max torque at around 1250 rpm. My only complaint is my fuel mileage is 5.4 no matter how I drive it. Found out I was 6 updates behind in my ECM but non of the updates were for fuel mileage. I can pull a 6% grade in economy's mode on the trans setting the cruise at around 54mph and I will top the peak at around 49mph. I love it.
PM me and I will give you my phone number if you want to discuss maintenance, repairs, etc. Always happy to talk motorhome.
Steve
Steve and Jill
2005 Panther
23' Trailer
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10-08-2015, 02:44 PM
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#5
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Senior Member
Monaco Owners Club
Join Date: Apr 2010
Location: Saint Leonard,MD
Posts: 750
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Steve,
What is you current flash on you KCB c-13?
Dennis
__________________
2005 Safari Panther Diamond IV Cat C13
2013 Avalanche Toad
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10-08-2015, 03:31 PM
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#6
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Senior Member
Join Date: Jan 2011
Location: Santa Clarita, CA
Posts: 929
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Not sure, I have the paper at home and I am in Tucson. I will let you know when I get back home.
Steve
Steve and Jill
2005 Panther
23' Trailer
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10-11-2015, 06:57 PM
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#7
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Senior Member
Join Date: Jan 2011
Location: Santa Clarita, CA
Posts: 929
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In answer to your question, here is a copy of my ECM and ECM tune info for my C13
Steve and Jill
2005 Panther
23' Trailer
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10-11-2015, 07:07 PM
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#8
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Quote:
Originally Posted by slemnah
I love my Kitty CAT C13 525hp. No matter how long it sits it starts right up, it pulls beautifully on hills once you learn to drive it (lower rpms are best) since it makes its max torque at around 1250 rpm. My only complaint is my fuel mileage is 5.4 no matter how I drive it. Found out I was 6 updates behind in my ECM but non of the updates were for fuel mileage. I can pull a 6% grade in economy's mode on the trans setting the cruise at around 54mph and I will top the peak at around 49mph. I love it.
PM me and I will give you my phone number if you want to discuss maintenance, repairs, etc. Always happy to talk motorhome.
Steve
Steve and Jill
2005 Panther
23' Trailer
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That mileage does seem kind of low. Our ISX has 1950 ft lbs from 1100 to 1600 rpm and we get 7.6 mpg over 45,000 miles. I actually like to leave the trans in economy mode most of the time. Doesn't seem to make much difference in hill climbing or acceleration either, probably not fuel mileage either!
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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10-12-2015, 06:43 AM
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#9
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Senior Member
Monaco Owners Club
Join Date: Apr 2010
Location: Saint Leonard,MD
Posts: 750
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Thanks for the flash info. If I read your sheet correctly you have engine SN KCB21422 and the 291-2048 flash from 2006. Anyone know if that is correct?
According to my PO I have had two reflashes by CAT, one to 291-2076 in 2006 and one to 335-7819 in 2008 and my engine SN is lower (older). I don't think the flash codes are on size fits all. The correct one depends on injector and turbo PN as well as rating (RV, Fire truck etc).
__________________
2005 Safari Panther Diamond IV Cat C13
2013 Avalanche Toad
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