Programmed 2006-2007 Silverado 2500 ECM | 6.6L LLY Diesel | 12606126

Get Your Duramax Back to Work, Fast.

Don’t let a bad ECM keep your truck sidelined. This replacement Engine Control Module is your key to restoring the dependable power and performance you rely on. We program it to your VIN so it’s ready to install right out of the box. Get back on the road with confidence. Order yours today!

$1295.95

+11.99 USPS Priority Shipping

Out of stock

Guaranteed Safe Checkout

Is your Duramax-powered truck or van suddenly running rough, refusing to start, or throwing confusing error codes? A failing Engine Control Module (ECM) can bring your workhorse to a dead stop, costing you time and money. This replacement ECM is the definitive, reliable solution to get your vehicle off the jack stands and back on the job. It arrives fully programmed to your vehicle’s specific VIN, ensuring a seamless installation process without the need for an expensive trip to the dealership.

Common Symptoms & Your Solution

If you’re experiencing issues like a crank-no-start condition, erratic engine behavior, poor fuel economy, or communication-related diagnostic trouble codes (DTCs) such as P0601, P0606, or U0100, a faulty computer is the most likely culprit. This unit is engineered to resolve those problems and restore the factory performance and communication protocols your truck’s complex systems rely on. By ordering this pre-programmed 2006-2007 Silverado 2500 ECM, you’re not just buying a part; you’re buying a direct fix for these frustrating and costly issues.

  • ✔ VIN-Programmed for Your Truck: Arrives ready for installation with the latest GM software updates, matched specifically to your vehicle. No extra programming required.
  • ✔ Restores Peak Performance: Eliminates engine stumbling, hesitation, and poor idling by restoring precise fuel and timing control for your 6.6L LLY Duramax engine.
  • ✔ Resolves Communication Errors: Fixes dashboard warning lights and error codes caused by an internal computer failure, ensuring all vehicle modules can communicate correctly.
  • ✔ Direct-Fit Compatibility: Engineered as a direct replacement for a wide range of part numbers, including 12606126, 12604137, and 19260753, guaranteeing a perfect fit.
  • ✔ Built for Durability: Designed to withstand the harsh under-hood environment of a heavy-duty diesel truck, providing long-term reliability you can count on.
  • ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.

Expert Insight: The ECM’s Critical Role with the Allison Transmission

Many owners don’t realize that the ECM is the brain for both the engine and the transmission in these trucks. The 6.6L Duramax is paired with the robust Allison transmission, and their communication is critical for proper shifting, torque converter lock-up, and overall powertrain health. When the original 2006-2007 Silverado 2500 ECM fails, it often leads to harsh shifting, getting stuck in one gear (limp mode), or incorrect shift points. Our VIN-specific programming ensures that the delicate handshake between your engine and transmission is restored to factory specifications, protecting your transmission from potential damage and giving you the smooth, predictable performance you expect when towing or hauling heavy loads.

Don’t let a faulty computer dictate your truck’s reliability. This is your opportunity to restore the dependable power your work demands. We make the process simple: after your purchase, provide us with your VIN, and we handle the complex programming. We’ll ship a unit that’s ready to be installed, getting you back to work with minimal downtime. For any heavy-duty Sierra, Express, or Savana owner, this programmed 2006-2007 Silverado 2500 ECM is the most efficient and effective way to solve your engine management problems.

Frequently Asked Questions

Do I need to do any programming or flashing myself?

No. This ECM comes fully programmed to your vehicle’s VIN with the latest software updates from GM. It is ready for installation right out of the box. You will need to provide us with your VIN after you complete your purchase.

Where is the ECM located on my 2006-2007 GM truck?

On Silverado and Sierra pickups, the ECM is typically located in the engine compartment on the driver’s side, underneath the battery tray. On Express and Savana vans, it is found in the LH rear of the engine compartment.

Will this fix my transmission shifting problems?

A faulty ECM is a very common cause of transmission issues in these vehicles, including harsh shifting, delayed engagement, or being stuck in ‘limp mode’. Because the ECM controls transmission functions, replacing it with our correctly programmed unit will often resolve these problems.

What is the process after I place my order?

It’s simple. Once you purchase the ECM, you will need to send us your vehicle’s 17-digit VIN. Our technicians will then program the module specifically for your truck or van before shipping it to you.

Is this part the same for a Silverado and a Savana van?

Yes, this ECM is compatible with all the vehicles listed, including the Silverado, Sierra, Express, and Savana models equipped with the 6.6L LLY diesel engine for the specified years. Our VIN-specific programming ensures it has the correct software for your exact model.

Genuine OEM

Yes

Year
Condition

Refurbished

MPN

12604137

Interchange part number

PartNumber

590

Model

savana-2500

Year

2007

Brand

GM

Manufacturer Part Number

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