REBUILT OEM ECM PCM ECU for 2004 Jeep Grand Cherokee with 4.7L Engine - 56044778

• Rebuilt OEM Engine Control  Module  (ECM)
• 1-Year Replace or Repair Warranty
• Optionally extend your warranty at checkout to up to 3 years
• Free Shipping via  Fedex Ground (4-5 Days) or USPS Priority Mail (2-3 Days)
• Unlimited Free Telephone Support

Interchangeable Part Numbers:

This ECM is 100% compatible with and supersedes ECMs bearing any of the following Part Numbers:

Firmware Revisions:  56044564AE, 56044564AF, 56044564AG, 56044564AH, 56044564AI, 56044564AJ, P56044564AE, P56044564AF, P56044564AG, P56044564AH, P56044564AI, P56044564AJ

Hardware Codes:   56044778AA, 56044778AB, P56044778AA, P56044778AB

The Hardware Code is a number assigned to an ECM during initial manufacturing. It is the “platform” onto which firmware specific to your vehicle / powertrain is then loaded. Always seek to purchase the latest Firmware Revision of your original ECM. 

Part Number Notes: 

1. The last two alpha characters in ECM Part Numbers refer to the firmware revision. We will ship you the latest revision which is backward-compatible with all prior revisions.
2. The presence or absence of a leading zero as the first character in the part number is not significant. It may appear on your old ECM with or without a leading zero.
3. Your old ECM may show a “P”, or “P/N” in front of the part number. This is merely a field heading on the sticker that means “Part Number” and is not significant.

MAK’s stands behind everything we sell and you are always just a free phone call away from a live expert who knows ECMs!

+1 (818) 798-5558