12586242 Avalanche engine control module 2004 **TESTED** ENGINE CONTROL MODULE The part # is 12677677

The part # is 12677677

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The part # is 95800-B2000

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12586242 Avalanche engine control module 2004 **TESTED** ENGINE CONTROL MODULE The part # is 12677677MAKE SURE YOUR PART NUMBER MATCHES BEFORE ORDERING!!! This is a good tested engine control module computer for a 2004 Avalanche. The part number is 12586242. It comes with a 90 day warranty. Make sure your part number matches before ordering. Computer may need to be reprogrammed to your vehicle. Stock # 4H12 FREE SHIPPING IN THE UNITED STATES INCLUDING PUERTO RICO MAKE SURE YOUR PART NUMBER MATCHES BEFORE ORDERING!!!