Shop Buick Century Engine Control Module (ECM). 6.6 LITER DIESEL. Silverado, Sierra 2500 HD; Diesel DIESEL, HD, LITER, Unit - OEM Buick Part # 12720006 (12711509)

A module in a vehicle used to monitor and control many components of the vehicle's engine management system. ECC. Engine Control Computer. Engine Control Module (ECM). Engine Control Unit (ECU). General Purpose Embedded Control Unit. Powertrain Control Module. Included with: Spacer.

Engine Control Module

Fits Sierra 2500 HD, Sierra 3500 HD, Silverado

6.6 LITER DIESEL. Silverado, Sierra 2500 HD; Diesel. Silverado, Sierra 3500 HD; Diesel. Silverado, Sierra; 6.6L.