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cummins "53"

tdgulfstream
Explorer
Explorer
im thinking of buying an 2001 holiday rambler endeavor with the cummins motor, does anybody know if the motor used is the "53" block which seems to be a bad issue (cracked blocks) in dodge trucks, wondering if its a concern in motorhomes also. Thanks, Tom
7 REPLIES 7

wolfe10
Explorer
Explorer
d_denver wrote:
I believe the 53 block was only on the Cummins ISB.


That is correct.
Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

Diesel RV Club:http://www.dieselrvclub.org/

d_denver
Explorer
Explorer
I believe the 53 block was only on the Cummins ISB. I doubt the Endeavor has the ISB small block
2002 34' Holiday Rambler Pusher
2005 VW Convertible toad
2008 Dodge 4x4 "Power Wagon" toad

CVD
Explorer
Explorer
I have a 1999 code 53 ISB. Had it 14 yrs, no problems (have to admit, was quite concerned when I learned about the potential issue after I'd bought the coach).
Re. what you are looking at, I believe the cracked block issue would have occurred by now. If it passes a pressure test now, I wouldn't worry.
Cliff

1999 Itasca 34V DP
2000 Jeep Wrangler
2014 Honda CRV

tdgulfstream
Explorer
Explorer
thanks for the response, I am going out this morning to check it out, this motorhome has 89,000 miles on it, i'll see what it looks like ...

wolfe10
Explorer
Explorer
Here is an explanation of the issue and years of production-- note, this is the year the ENGINE was built, so coach year could be somewhat later:

http://www.cumminshub.com/cummins-53-block.html
Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

Diesel RV Club:http://www.dieselrvclub.org/

tinkerer
Explorer
Explorer
The years for these blocks were from 1998 to 2002, they were cast in Brazil. I had the misfortune of getting stuck with one of these failures in a MH.

wolfe10
Explorer
Explorer
Yes, 99-01 I would check the block. Yes, this applies to Cummins B engine ONLY.
Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

Diesel RV Club:http://www.dieselrvclub.org/