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Old 03-03-2012
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rrueckwald rrueckwald is offline
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Location: St. Joseph
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Default Detroit Diesel Model Number System

DD provided the following key to model numbers.

It tells you which DDEC you have.
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Ron & Dorinda Rueckwald
2000 LXI 43 ss
St. Joseph, MI
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Old 05-21-2015
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giderich giderich is offline
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Join Date: Jan 2008
Location: Rolla
Posts: 3,067
Default Model Number Decoder

Ron, here is a somewhat automated version of the DD Model Number Decoder.


I entered my Detroit Diesel Model number 80877A40 and the Decoder says my 1988 WB came equipped with a Series 92, 8 cylinder engine; Application FF-Auto, Rotation RC, T A DDEC I, pre 1991 Engine.

I found my model number (8 08 7 7 A 40) printed on the valve covers.

Originally Posted by rrueckwald View Post
DD provided the following key to model numbers.

It tells you which DDEC you have.
Dick & Patsy Gideon
1999 43 LXI Single Slide Body # F124510
2005 JEEP Liberty Limited CRD (diesel Toad)
SOLD 89 FC in 2012; SOLD 88 WB in 2016
Rolla, MO 65401
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