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Hot Sale 10 Ram 1500 2500 5.7l 4x4 Ecu Ecm Pcm Engine Control Computer 05187931ah Tested - Today Only [wxEGXZqK]

$63.99 $204.99 -69%

Part Number05187931AH** We have tested and rebuilt (if necessary) the alternator charging circuit in the ECU. We recommend not buying from another seller if they are not testing these units as the alternator charging issue is very common in these veh

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Part Number

05187931AH

** We have tested and rebuilt (if necessary) the alternator charging circuit in the ECU. We recommend not buying from another seller if they are not testing these units as the alternator charging issue is very common in these vehicles.

ECU has SKIM security.

We offer FREE programming, see details below!

Fitment/Interchange

This ecu will interchange or replace the following part numbers that have the same security as described above:

05187931AA

05187931AB

05187931AC

05187931AD

05187931AE

05187931AF

05187931AG

05187931AH

05187931

R5187931AH

Tech Notes

    ECU has been tested with our state of the art vehicle simulator which tests over 25 circuits of the ECU! Some of those are listed below:
  • Lens does show light used part wear and is some light scratches as pictured
  • Reference Voltage Good!
  • ECU powered up and has communication!
  • ECU fuel pump/main relay test good!
  • ECU injectors/coils test good and much more!

Install Notes

  • Disconnect the negative terminal of the battery. Make sure the battery connector is not touching the battery post.
  • Disconnect and remove the module to be replaced
  • Install and connect the replacement module
  • Connect the negative terminal of the battery
  • See "Programming" below for additional install instructions

Programming 

For Plug and Play you must follow the below three steps:

Step 1: Match your part number series per above fitment guide

Step 2: Match your ecu security. Most NGC style ecu's have SKIM security and are not plug and play. (You generally will have grey ignition keys or chipped keys.) 

Step 3: Program ecu to your VIN and mileage. We provide free programming for our customers. During checkout you must list your VIN and mileage in the "Notes to Seller" for us to program the ECM. If we do not hear from you through the order notes or a message through eBay we will assume your mechanic is performing the programming (no problem at all) and we will ship the ECM out the next business day as directed by eBay.

Item Condition

  • Mounting points are all open and intact
  • Pins perfect, none are broken or bent

Warranty / Optional Core Return

This ECM comes with a 3 month warranty from the date of purchase. Please keep a copy of your purchase record which we will send with your item.

Optional Core Program: If you would like to send your ecu back to us for a $25 partial refund let us know in the "notes to seller" box during checkout. We will include a prepaid return label with your order. It's that simple! Once the ecu is received we will issue your refund promptly.

What Our Customers Say

January 2, 2026

Absolutely no complaints!

This is a very good and very clever tool.

- Armani D..

January 2, 2026

Absolutely no complaints!

A superb item that I would gladly recommend.

- Bryan U..

January 2, 2026

Absolutely no complaints!

I am very, very satisfied with this.

- Cade G..

Write a Review

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