Will this work on 2011 Silverado?

Yes, will need to be programmed by GM, I had it done at my mechanic who called the local dealer and had them send a programming unit over and ran the setup remotely over the internet.

I have a z71 2010 suburban do this fit

Yes, will need to be programmed

Will this work on a 2014 l99 vvt 6l80e?

It really work good. I bought it for 2012 Denali GMC Sierra.

Is it "plug and play" or does it need to be programmed?

Needs to be programmed by dealer.

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⚡ Drive Smart, Drive GM-Approved: The Brain Your Engine Deserves

PLUG IN MOUNT DESIGN - Effortless installation with a secure plug-in mount, minimizing downtime and maximizing road time.
ROBUST COPPER CONTACTS - Ensures superior electrical conductivity and long-lasting performance under all driving conditions.
SEAMLESS OEM INTEGRATION - Direct-fit replacement engineered by GM for flawless compatibility across Avalanche, Escalade, Tahoe, Yukon, Silverado, and more.
DURABILITY MEETS PRECISION - Manufactured to GM’s exacting standards, delivering consistent engine regulation for peak performance and reliability.
MULTI ENGINE COMPATIBILITY - Supports 4.8L to 7.0L GM engines, including high-performance Camaro SS and Corvette models—power your ride with confidence.

The General Motors 12633238 Engine Control Module is an OEM-grade, plug-in replacement designed to regulate engine functions precisely across a wide range of GM vehicles and V8 engines. Featuring copper contacts for reliable conductivity and engineered for seamless integration, it ensures optimal engine performance, durability, and longevity.

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Connector Type	Plug-In
Contact Material	Copper
Contact Type	Normally Open
Mounting Type	Plug In Mount
Brand	General Motors
Operation Mode	Automatic
Number of Terminals	1
UPC	707773620137
Manufacturer	ACDelco
Model	Engine Control Module
Item Weight	1.74 pounds
Product Dimensions	10.7 x 7.2 x 3.2 inches
Item model number	12633238
Is Discontinued By Manufacturer	No
Exterior	Painted
Manufacturer Part Number	12633238
OEM Part Number	12633238

General Motors 12633238, Engine Control Module

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