ECM for GM 8.1L V8 (2004) - Replaces Part Numbers: IL

Includes: - ECM for GM 8.1L V8

Fits Models: - Chevrolet Silverado 2500HD - Chevrolet Silverado 3500 - GMC Sierra 2500HD - GMC Sierra 3500

Model Years: - 2004

Submodels: - Common trims include WT (Work Truck), LS, LT, and Denali - Chassis codes: GMT800

Engine Options: - 8.1L V8 (Engine code: L18)

Description: This Engine Control Module (ECM) is designed for 2004 GM vehicles equipped with the 8.1L V8 engine. It serves as a critical component for managing engine performance and efficiency, ensuring optimal operation of your vehicle.

Features: - Direct replacement for factory ECM - Compatible with various GM models featuring the 8.1L V8 engine - Ensures proper engine management and performance - Easy installation for qualified technicians

Part Number: IL