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Old 10-26-2020, 08:44 PM   #1
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Allison 3000 series

What DP Motorhomes came equipped with Allison 3000 series Transmission and Cummins ISBs
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Old 10-26-2020, 10:32 PM   #2
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Welcome to iRV2 , the transmission options are specified by the coach manufacturer and installed by the chassis builder .
To save a few $$$ some manufacturers will order the lower series trans (2100/2500) instead of the 3000 . I believe Monaco used the 3000 series in 98/99 production with the 5.9 ISB , but for later coaches it's crawl under to find out, if build sheet not available . Most all coaches with the ISC will have the 3000. because of the bigger engines torque.

What years are you looking at ??
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Old 10-26-2020, 10:37 PM   #3
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Differences are easy to spot .
First picture 3000 shallow sump.
Second picture 3000 deep sump , rare usually only 4000 series have deep sump,
Third picture 2500 series with it's steel pan, and small external filter
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Old 10-27-2020, 03:05 PM   #4
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Allison 3000

Thanks for the info. I was looking for 98 thru 2004 DP
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Old 10-27-2020, 03:37 PM   #5
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In some of the prior year Tiffin coaches the 2500 Allison is mated with the 340hp ISB. If the 360hp is specified then it requires a 3000 transmission for the extra torque.
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Old 10-27-2020, 04:25 PM   #6
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Quote:
Originally Posted by Johnny Ringo View Post
Thanks for the info. I was looking for 98 thru 2004 DP
JMHO: Narrow your search to 03/04 , to get away from the first years of ISB's problematic VP-44 injection pump, and any chance of the # 53 block .

http://www.drivingline.com/articles/...eries-cummins/
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