12649331 12649245 Bosch EDC17CP18 DELCO E86A original ECU file C589AD546F8A3E57 – Chevrolet Silverado 6.6 V8 396hp

SW 12649245 is also listed for

The catalogue has this SW number on 2 other vehicle variants, 2 files:

• GMC Sierra 6.6 V8 400hp, 6.6 451hp 2 files

SW numbers next to 12649245

The closest SW numbers in the archive, by spelling. They are other files, not equivalents. Worth a look when a digit may have been misread.

Other numbers for the Chevrolet Silverado 6.6 V8 396hp

6 files cover exactly this car and engine, on Bosch EDC17CP18 DELCO E86A (6). If your ECU reads differently from this page, 2 of the others:

This ECU and car in figures

Bosch EDC17CP18 DELCO E86A: 26 files, 4 SW numbers, 1 with a map pack. Makes: Chevrolet (14), GMC (12). Most listed: Chevrolet Silverado (14), GMC Sierra (12).

Chevrolet Silverado: 50 files. ECU types: Bosch EDC17CP18 DELCO E86A (14), Delco E38 (13), Bosch EDC17CP18 DELCO E86B (6), Delco E86 (6). Engine codes: GM Duramax LML (8), GM Duramax (4), LGH (1).