Delco E39 original ECU files

Vehicles with a Delco E39

Delco E39 files are listed for 7 makes and 14 models, the most listed first.

How to identify your Delco E39 file

How the numbers on this ECU type start:

• HW 1263… 21 of the 39 files with a HW number, 54%
• HW 1265… 10 of the 39 files with a HW number, 26%
• SW 1264… 23 of the 36 files with a SW number, 64%
• SW 1265… 7 of the 36 files with a SW number, 19%

A HW number alone does not pick the file: 12639706 carries 3 SW versions here. Compare both numbers with your read.

Where do I find these numbers?

Delco E39 map packs in figures

4 packs, 26 to 94 maps each, median 47.5.

All Delco E39 HW and SW numbers

14 HW numbers and 20 SW numbers, by make. Beside each HW, how many SW versions it carries. A number opens a file that shows it.