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12670950 Genuine GM Engine Control Module For Silverado Sierra 6.6L Diesel

P/N: 12670950 Manufactured by: GM
Original price $765.00 - Original price $765.00
Original price
$765.00
$765.00 - $765.00
Current price $765.00
1 in Stock
Condition: New
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Description

The 12670950 is a genuine GM engine control module developed for select Chevrolet Silverado HD and GMC Sierra HD trucks featuring the 6.6L V8 diesel engine. This electronic component oversees designated powertrain operations by interpreting engine data and coordinating control functions associated with diesel performance and emissions management.

Vehicle Compatibility

Year Vehicle Engine Trims
2017 Chevrolet Silverado 2500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2017 Chevrolet Silverado 3500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2017 GMC Sierra 2500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT
2017 GMC Sierra 3500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT
2018 Chevrolet Silverado 2500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2018 Chevrolet Silverado 3500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2018 GMC Sierra 2500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT
2018 GMC Sierra 3500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT
2019 Chevrolet Silverado 2500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2019 Chevrolet Silverado 3500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2019 GMC Sierra 2500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT
2019 GMC Sierra 3500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT
2020 Chevrolet Silverado 2500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2020 Chevrolet Silverado 3500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2020 GMC Sierra 2500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT, AT4
2020 GMC Sierra 3500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT, AT4
2021 Chevrolet Silverado 2500 HD 6.6L V8 Diesel Custom, High Country, LT, LTZ, WT
2021 Chevrolet Silverado 3500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2021 GMC Sierra 2500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT, AT4
2021 GMC Sierra 3500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT, AT4
2022 Chevrolet Silverado 3500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT


General Specifications

Condition New
Part Number 12670950
Brand GM
Part Type Engine Control Module
Years 2017–2022
Vehicle Chevrolet Silverado 2500 HD, Silverado 3500 HD; GMC Sierra 2500 HD, Sierra 3500 HD
Engine Compatibility 6.6L V8 Diesel
Control System Engine Electronic Management
Emissions System Electronic Emission Control
Dimensions 3.0 × 13.2 × 12.6 in
Weight 4.45 lbs


Product Features

The 12670950 genuine GM engine control module performs the following functions within the specified diesel powertrain management system:

  • Evaluates incoming engine sensor information for electronic operating control and management
  • Directs designated diesel engine functions using the corresponding factory calibration parameters
  • Handles emissions-related electronic commands within the original GM powertrain management architecture
  • Communicates with associated vehicle electronics through the established factory control network
  • Configured for compatible Silverado and Sierra heavy-duty trucks with diesel powertrains
  • Uses engine operating inputs to coordinate control responses under varying conditions
  • Works within the original electronic management arrangement of specified GM diesel engines
  • Combines essential engine monitoring and emissions control functions in one electronic unit

Application Notes

The 12670950 is intended for select Chevrolet Silverado 2500 HD and 3500 HD, and GMC Sierra 2500 HD and 3500 HD trucks equipped with the 6.6L V8 diesel engine. Before installation, confirm the original ECM specifications and follow GM service instructions for any necessary programming, engine calibration, and electronic module configuration.

Always match the original engine control module identification, vehicle powertrain specifications, electronic communication requirements, and applicable programming procedures before installation.

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