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Product Overview

REBUILT OEM ECM PCM ECU for 2004 Dodge RAM 1500 with 3.7L Engine - 56028806


This REBUILT OEM ECM fits the following vehicles:

  • 2004 Dodge RAM 1500 – 3.7L

Availability: In stock

  • Enter Your 17-digit VIN

    VIN is required for programming, if you do not provide your VIN, the part cannot be programmed and may not be suitable for your vehicle.

  • Current Mileage

    Enter mileage (accurate to +/- 10 miles) or leave blank for our Customer Service to contact you regarding your ECM/PCM. If driving the vehicle, leave blank and we'll reach out before shipment or Call Us with questions.

    Transmission Type
  • Rental Program Option

    Convert your ECM purchase to a rental within 30 days if it's not the real problem. Check our Warranty Information & Returns Policy for details.

Availability: In stock

SKU 56028806AB-REBUILT Category Tags , ,
  • Rebuilt OEM Engine Control Module (ECM) Warranty Badge
  • 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:

56028789AD, 56028789AE, 56028789AF, 56028790AA, 56028790AB, 56028790AC, 56028790AD, 56028790AE, 56028790AF, 56028790AG, 56028791AA, 56028791AB, 56028791AC, 56028791AD, 56028791AE, 56028791AF, 56028791AG, 56029138AA, 56029138AB, 56029138AC, 56029138AD, 56029138AE, 56029138AF, P56028789AD, P56028789AE, P56028789AF, P56028790AA, P56028790AB, P56028790AC, P56028790AD, P56028790AE, P56028790AF, P56028790AG, P56028791AA, P56028791AB, P56028791AC, P56028791AD, P56028791AE, P56028791AF, P56028791AG, P56029138AA, P56029138AB, P56029138AC, P56029138AD, P56029138AE, P56029138AF

56028806AD, P56028806AD

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