84631875 Genuine GM Reductant Control Module For Silverado Sierra 6.6L

84631875 Genuine GM Reductant Control Module For Silverado Sierra 6.6L

Name: 84631875 Genuine GM Reductant Control Module For Silverado Sierra 6.6L
Brand: GM
SKU: 84631875
Price: 325.00 USD
Availability: InStock

P/N: 84631875 Manufactured by: GM

$325.00 - $325.00

$325.00

$325.00 - $325.00

$325.00

3 in Stock

Condition: New

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Description

The 84631875 is a genuine GM reductant control module designed for select 2017–2019 Chevrolet Silverado HD and GMC Sierra HD models equipped with the 6.6L Duramax diesel engine. This module manages the DEF system by processing fluid level and temperature information to help maintain proper emissions system operation and factory communication with the vehicle's control network.

Vehicle Compatibility

Year	Vehicle	Engine	Trims
2019	Chevrolet Silverado 2500 HD	6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	High Country, LT, LTZ, WT
2019	Chevrolet Silverado 3500 HD	6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	High Country, LT, LTZ, WT
2019	GMC Sierra 2500 HD	6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	Base, Denali, SLE, SLT
2019	GMC Sierra 3500 HD	6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	Base, Denali, SLE, SLT
2018	Chevrolet Silverado 2500 HD	6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	High Country, LT, LTZ, WT
2018	Chevrolet Silverado 3500 HD	6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	High Country, LT, LTZ, WT
2018	GMC Sierra 2500 HD	6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	Base, Denali, SLE, SLT
2018	GMC Sierra 3500 HD	6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	Base, Denali, SLE, SLT
2017	Chevrolet Silverado 2500 HD	6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	High Country, LT, LTZ, WT
2017	Chevrolet Silverado 3500 HD	6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	High Country, LT, LTZ, WT
2017	GMC Sierra 2500 HD	6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	Base, Denali, SLE, SLT
2017	GMC Sierra 3500 HD	6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel	Base, Denali, SLE, SLT

General Specifications

Condition	New
Part Number	84631875
Brand	GM
Part Type	Reductant Control Module
Years	2017–2019
Vehicle	Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, Sierra 3500 HD
Engine Compatibility	6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel
Dimensions	6.7 × 5.4 × 1.4 in
Weight	0.84 lbs
Fitment Type	Direct Replacement

Product Features

The 84631875 reductant control module is manufactured to GM factory specifications for dependable DEF system operation:

Processes DEF fluid level and temperature signals so the emissions system can operate the way GM intended
Built with factory-style electrical connections that match the original harness for a direct installation
Designed specifically for compatible 2017–2019 Silverado HD and Sierra HD diesel applications
Helps maintain proper communication between the DEF components and the vehicle control modules
Manufactured to GM engineering standards for reliable operation in demanding diesel truck environments

Application Notes

The 84631875 reductant control module is designed for compatible GM heavy-duty trucks equipped with the factory DEF emissions system. Before installation, inspect the wiring connector and DEF tank components for damage or corrosion that could affect module operation.

Always confirm the part number, vehicle VIN, engine configuration, and emissions system before installation.