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View Full Version : High Mount A/C Set Up. W/ part #s



Burning Oil
07-08-2008, 21:22
I have had alot of pepole email/pm me asking what set up I used for my a/c brackets and water inlet.
I put a 6BT in a 1996 Chevy 4x4. I had not been able to find my receipt from Cummins, but I did find the part #s I wrote down to give to Cummins when I bought these parts. I do not remeber how much each part was, but seem to remember the water inlet being the most expenecive part ($200ish) other than the A/C comp.
These parts will let you relocate your A/C above the lower rad hose inlet thus giving the frame clearence needed.
Everything was a direct bolt on and should work on the 4b's also.
I did have to space the A/c comp out 1/2" to clear the filter.
Part #s are.
3930888 Water inlet
3930820 Alt lower mount
3920862 Upper alt mount
3978021 Belt tensioner
3921382 Lower rad hose nipple
080720 Serp belt
This is set up for use with a Delco 22SI alt.
You may have to try different serp belts until you find one that fits perfect.
You will also need tstat orings I do not have that part #

COMP
07-10-2008, 12:27
you have any pics ??

Burning Oil
07-10-2008, 15:03
you have any pics ??

I don't have any close up pictures that would be useful. Next time Im over at the truck I will see if I can get any that would help.

COMP
07-10-2008, 20:03
I don't have any close up pictures that would be useful. Next time Im over at the truck I will see if I can get any that would help.
cool that would help

Burning Oil
07-10-2008, 21:01
I found this info about a year ago when I did mine on another web site cumminsconvertions.com That web site had gone down and the owner would not ever reply back to my emails. I thought it was gone for good, glad to see it back up.
Anyway check this link for a very good write up and pictures with all the part numbers.
http://www.cummins-conversion.com/phpBB/viewtopic.php?t=781