GMC ACDelco E39A Plug & Play PCM Clone Programming Service

GMC ACDelco E39A ECM / PCM Clone & Programming

The E39A is the ACDelco engine control module that runs GM’s latest full-size trucks and SUVs. Buy a bare replacement and your vehicle won’t start until that module is programmed to match — a job that usually sends you to the dealer and adds cost and downtime. Our clone service handles it for you: we lift the data from your original E39A and write it onto a matching replacement, so the module you receive is an exact, ready-to-run match for your truck.

What we copy across

Using your original module as the source, we transfer your factory operating software and engine calibration, your VIN, and your GM anti-theft / immobilizer data onto the replacement E39A. Every parameter lines up with what your vehicle already expects, so the cloned unit is genuinely plug-and-play — there’s no flashing, no theft relearn, and no key re-programming after you install it.

Vehicles that use the E39A

The E39A ECM is used across GM’s 2019-and-newer full-size lineup, including the Chevrolet Silverado 1500 and GMC Sierra 1500, the Tahoe, Suburban, Yukon and Cadillac Escalade, and the 2500HD / 3500HD trucks, typically with the 5.3L or 6.2L V8 and the 6.6L L8T. Not certain your module is an E39A, or that your replacement is the right match? Send us your hardware and service numbers before ordering and we’ll verify compatibility first.

How ordering works

1. Place your order here and complete checkout.
2. Ship us both modules — your original E39A and the matching replacement — using the packing instructions we email you.
3. We read your original, clone the data onto the replacement, and bench-test it (usually same-day, within 24 hours of arrival).
4. We ship the finished module back to you ready to bolt in.

Turnaround & shipping

Most orders are cloned, tested and back in the mail within 24 hours of reaching our bench. We ship across Canada, with international options for customers ordering from outside the country.

Warranty

Our cloning work carries a 12-month warranty. If a unit we cloned develops a fault in that time, we’ll re-clone or repair it; in the rare case it can’t be put right, we’ll refund the service. The warranty applies to the original purchaser and covers our workmanship on the clone.

Before you order

We need to be able to read your original module to copy its data, and your replacement must be the correct matching E39A hardware. If your original is completely dead, or you’re not sure your two units are compatible, message us with your part numbers first and we’ll confirm exactly what to send.