4B Series CPL Questions - TDR Roundtable

4B Series CPL Questions

10-03-2006, 12:02 AM

#1 (permalink)

WM-300

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Join Date: Dec 2003 Location: Northeast Posts: 458 Old Reader's Rigs Gallery

4B Series CPL Questions

My Cummins Shop Manual does not break down the different CPL Builds. I have used (2)4BTA, CPL 857 in my trucks. Now searching for (2) more 4BTA's I have located a CPL 1260 and a CPL 767. My CPL 857's are rated 120hp at 2500 RPMS, liquid cooled intercooler (engine coolant)

My Cummins Shop Manual shows the;

CPL 767 being a 4BTA, 105hp at 2800 RPMs
CPL 1260 being a 4BTA, 105hp at 2500 RPMs

What are the differences in these 2 engines compared to the CPL 857 which is higher power ?
The seller told me that both have air cooled intercoolers. To my knowledge, air cooled intercooler engines produce more power than a liquid cooled intercooler. ?? Are CPL 767 and 1260 both automotive application engines?

I called Cummins tech support today and the tech told me he has no information to look up CPL Builds ?

Thanks for your help

WM300

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