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C13 motor

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Fred Cook:
I currently have a C 12 motor and looking at buying a coach with a C 13. It is a 2008 model. What are the drawbacks of the 2008 C13 motor and should I not even consider buying it?

Frank Bergamo:
It will consume more fuel. 6-6.5 MPG at best. If that does not bother you, then the extra power is nice but it will not be that much different than what you have. My 02’ Marquis had the C-12, great motor, probably the best of the big CAT motors in my opinion. All that being said, if you like the floor plan and more slides, then go for it. My 07’ Marquis has four slides and the extra room is amazing. It really depends on what you want if you upgrade. Do your homework, be informed with the different equipment, then make a decision. Hope this helps, good luck!!

Fred Cook:
Thanks Frank. My biggest concern is that the 2008 C13 may be a regen motor….. not sure. I have seen posts on other forums where people have had issues with the cat regen motor. Was wondering if any owners of the C13 have had any issues with their motor.

Frank Bergamo:
The CAT ARD Head was mandated in 2007-2009. The C-13 that you are looking at was more than likely manufactured before that. You can get the serial number for that motor and contact any CAT shop and verify when it was manufactured. Then you will know for sure what you are dealing with. Hope this helps!!

Scott Shearer:
Fred,

Here is a C13 Serial number prefix chart (generally used by Monaco):

Prefix: KCB
Model: C13 ACERT
Years: 2004-2006

Prefix: LEE
Model: C13 ACERT (regen)
Years: 2007-2010

The ‘LEE’ engines will have the ARD Head and other additional troublesome emissions devices.

Also, not sure which model coach that you are looking at but be aware that some 2008 and up Marquis and Patriot Thunder utilize a Chassis Control Module (CCM). You should research this, keywords are Kongsberg, Megatech, Mega Tech, Chassis Control Module, CCM.

Our 2006 Patriot Thunder has a ‘KCB’ C13 ACERT. We’ve had a few issues with it but nothing serious. Water pump (replacement is not for the faint of heart) and problems with the variable valve timing (VVA). As Fank mentioned, the C13 is quite thirsty, I’ve never seen better than 6 mpg.

I wouldn’t shy away from a ‘KCB’ C13, but only after a heath check by a certified CAT Tech. Include an oil analysis if the oil has not been recently changed.

-Scott

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