GM ECM Cloning
Whether it's a Silverado, an Equinox or a Cadillac, a replacement GM engine computer needs your vehicle's data before it will run. We clone GM ECMs and TCMs 1:1 by mail, so the replacement plugs in and works with your keys.
- VIN, immobilizer & coding copied
- Plug and play, no dealer visit
- Free shipping
- 24–72 h turnaround
- 30-day warranty
What we cover
| Vehicle / module | Details |
|---|---|
| Engine computers (ECM) | E37, E38, E39, E40, E67, E78, E80, E92, E98 |
| Transmission computers (TCM) | T42, T43, T76, T87 |
| Trucks & SUVs | Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade |
| Cars & crossovers | Equinox, Malibu, Traverse, Acadia, Impala and more |
| Not listed? | Send us your part number |
Not sure? Send us your part number before you order and we'll confirm.
Signs
- Engine or transmission computer failed
- Used ECM or TCM won't work in your vehicle
- Theft deterrent active after a module swap
- Shop job waiting on a dealer programming appointment
How it works
Buy on eBay
Choose your service on our site and complete checkout on eBay.
Ship your part
Pack it well. Add a note with your eBay order number and the car's year, make and model.
Bench work
We reset, repair or clone your part, then test it before it leaves.
Back to you
Returned with tracking. Plug it in and go.
FAQ
What do I send you?
Your original module and the replacement (donor) module, with a note showing your eBay order number. Our shipping address comes with your order.
Do the part numbers have to match?
Yes. Part number, hardware and software numbers must match, and both units must be from the same manufacturer. Send us photos of both labels before you buy if you're not sure.
Will my keys still work?
Yes. Immobilizer data is copied, so your existing keys keep working with the replacement module.
Not sure what you need?
Send us the vehicle and part number. We reply by email.