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FREE LIFETIME WARRANTY
PRODUCT HIGHLIGHTS
- This is a Dodge OEM computer for a 5.9L Diesel ECM Ram Diesel 5.9L .
- LIFETIME WARRANTY w/ Core Exchange.
- Plug and Play No need to visit a Dodge dealership!
- Fully rebuilt, programmed, and tested for quality.
- Fully programmed to your exact VIN. You'll provide your VIN # after purchase.
- All of the latest software updates from Dodge will be installed.
- We VIN Match Part# to Guarantee correct unit. (No Part# Required).
- Need a different model year? We have Diesel Dodge ECMs for model years 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 and 2007.
REQUIRED INFO
- VIN# (17 characters - can be found on dashboard or on registration card)
EXCHANGE PROCESS
- Your Lifetime Warranty is activated when you send us your old rebuild-able part in an exchange.
- We will include a FREE return shipping label in the package for you, so you can easily send us your old part and complete the exchange.
ADDITIONAL INFORMATION
SKU | 199F8 |
---|---|
Condition | Refurbished |
Make | Dodge |
Model | 5.9L Diesel ECM |
Engine Size | 5.9L |
Regular Price | $1895.00 |
Sale Price | $1295.00 |
Stock | IN STOCK |
1999 Dodge Ram 5.9L Diesel ECM
Details of the 1999 Ram Diesel Control Module
Engineered for the 1999 Dodge Ram, this functional ECM restores the 5.9L Cummins ISB diesel engine’s efficiency in Ram 2500 and 3500 models. It manages the VP44 injection pump, optimizing fuel delivery and turbo performance for SLT and Laramie trims, and supports 47RE automatic or NV4500 manual transmissions. In 1999, Dodge enhanced OBD-II diagnostics over 1998, improving sensor data processing.
Technical Specifications
- Engine Fitment: Calibrated for 5.9L Cummins ISB diesel.
- Transmission Integration: Compatible with 47RE or NV4500.
- Part Numbers: 394XXXX series (confirm fitment).
- Diagnostics: Enhanced OBD-II protocols for 1999.
Core ECM Functions
- Controls VP44 pump for precise fuel injection.
- Manages turbo boost to enhance torque output.
- Processes fuel pressure, throttle, and air intake sensor data.
- Ensures smooth transmission coordination for automatics.
Role for 1999 Ram Owners
This restored ECM ensures steady power for heavy-duty tasks in 1999 Ram trucks. It refines fuel mapping compared to 1998, boosting performance under load. The module supports the 1999 Dodge Ram’s reliability for towing and hauling. Unlike 2000’s diagnostic upgrades, the 1999 ECM prioritizes VP44 stability, making it crucial for reviving the Cummins engine’s durability in demanding conditions.
HOW DOES IT WORK?
Not sure this will work? Order RISK-FREE!
SEND IT TO ME NOW!BUYER BEWARE! NOT ALL COMPUTER SELLERS ARE EQUAL.
We are the ONLY company that runs every computer through a computer aided vehicle simulator to test for quality and compatibility with your car & VIN.

OVER 150,000 Customers Served
Every unit is programmed & tested in our facility in Cary NC
CarComputerExchange fully rebuilds and tests ALL computers. We are the ONLY seller that runs each computer through a computer aided vehicle simulator that tests every circuit in the module. Other companies run limited tests.
Most companies run limited tests. Some online stores simply repaint old units and sell without testing. Don't fall for the CHEAPER option.

Our testing & rebuilding process starts with a deep visual evaluation of the circuit board and all the electronic components. From water or acid corrosion, to fire or burn damage, we pay attention to every detail. We also scan the ECU memory or CPU to make sure that it is working properly.

We then test the ECU's with our proprietary electronic lab equipment on our bench, which emulates the car's engine to ensure accuracy in every diagnosis.