• Mercedes Freightliner Detroit MBE906 PLD-MR Engine ECU 000 446 74 40 Programmed Plug & Play
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Mercedes Freightliner Detroit MBE906 PLD-MR Engine ECU 000 446 74 40 Programmed Plug & Play

Mercedes Freightliner Detroit MBE906 PLD-MR Engine ECU 000 446 74 40 Programmed Plug & Play

$1,995.00 USD
$1,995.00 USD
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MBE906 PLD-MR Engine ECU
Part Number: 000 446 74 40

In stock and ready to program to your truck. This is the engine-mounted PLD-MR control unit (also called the PLD, MR, or engine-resident control unit) used on Mercedes-Benz / Detroit Diesel MBE900-series 6-cylinder engines. We transfer your original module's data into this unit so it matches your engine — no guesswork, no generic programming.

Part numbers

  • Hardware part number: 000 446 74 40 (also listed as 0004467440 / A0004467440), ZGS 001, manufactured by Temic
  • Detroit designation: PLD-MR D21, Software Release 53, 12/24 V, 6-cylinder
  • Example calibration numbers on this hardware: A 061 446 86 40, A 061 446 83 40 (your calibration is transferred from your original unit)

Match the part number on your module's label before ordering. The 4-cylinder MBE904 uses a different part number (000 446 78 40), and later units use different part numbers and software.

Applications

Mercedes-Benz / Detroit Diesel MBE900-series 6-cylinder (MBE906 / OM906) engines, including engine model codes 906.981 and 906.929. Commonly found in:

  • Freightliner FL70 and other FL-series trucks
  • Freightliner Business Class / M2
  • Sterling trucks with MBE900 engines
  • Thomas Built buses with MBE900 engines
  • Fire apparatus, municipal, and vocational trucks on these chassis

How it works – plug and play

  1. Place your order and ship us your original PLD-MR (core required).
  2. We read your original module's memory and transfer your engine's calibration, engine serial number, and parameters into the replacement.
  3. We verify the transfer and bench-test the unit.
  4. We ship it back ready to bolt on — built to match your engine, not a generic setup.

We program your engine's original factory calibration. No tuning, no emissions modifications.

If your original module is too damaged to read, contact us before ordering — parameters may need to be set with Detroit dealer software.

Common symptoms of a failing PLD-MR

  • No throttle response or engine won't rev
  • No start, or hard start
  • White smoke from incorrect injection timing
  • Misfire or dead cylinders
  • Gauges reading wrong — battery voltage low on the dash while actual voltage is normal, oil pressure pegged
  • Multiple sensor codes coming and going at the same time
  • Loss of communication between the engine and the cab

Related fault codes

  • SID 233-12 – PLD-MR failed or programmed incorrectly
  • SID 233-14 – Incorrect or misprogrammed PLD-MR
  • SID 248 – PLD-MR / DDEC-VCU datalink fault
  • PID 102-02 – Boost pressure sensor data erratic (when active with 233-12)
  • PID 168-04 – Battery voltage low
  • SID 21 / SID 64 – Crankshaft / camshaft position sensor faults

These codes can also come from wiring, sensors, or charging problems. Check power, grounds, harness, and sensors first. A good test: if a known-good PLD-MR clears the problem, the module is the cause.

Common causes of failure

  • Injector / unit-pump driver circuit failures
  • Water intrusion and internal corrosion
  • Vibration and impact cracking solder joints
  • Internal power supply faults causing false sensor readings

 

Mercedes-Benz, Detroit Diesel, Freightliner, Sterling, and Thomas Built are trademarks of their respective owners and are used for fitment identification only. ECU Maverick is not affiliated with these companies.

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Remanufactured

We rebuild OEM control modules with upgraded components to prevent common failures. Unlike junkyard parts that may fail within months, our modules are thoroughly tested and backed by a 6-month warranty. If it fails under warranty, reprogramming is free.

How It Works

Ship us your faulty module. We extract your original data (VIN, mileage, key codes, calibrations) and transfer it to a remanufactured unit. Your old module is recycled for parts. You receive a plug-and-play replacement ready to install.

What to Expect

✓ Turnaround: 2-3 business days

✓ Warranty: 6 months

✓ Programming: Not required—plug and drive

✓ Core Required: Yes (your original module)

About ECU Maverick — OEM Remanufactured Plug & Play Control Modules

ECU Maverick supplies OEM-quality remanufactured control modules, pre-programmed and ready to install. Based in Fort Myers, Florida, we serve independent repair shops, dealerships, and vehicle owners nationwide.

Every module we sell is thoroughly tested, remanufactured to OEM specifications, and programmed to your specific vehicle. No dealer visits, no additional coding, no hassle, ust plug in and drive.

Vehicles We Support

We stock and program modules for European luxury and performance brands, including BMW, Mercedes-Benz, Audi, Porsche, Land Rover, Bentley, Ferrari, Lamborghini, Maserati, and Aston Martin. We also carry modules for domestic vehicles, heavy equipment, and marine applications.

Why Automotive Repair Facilities and Owners Buy From Us

Plug-and-Play Ready — Every module ships pre-programmed and coded to your VIN. No dealer required.

Fast Shipping — Most orders ship within 2–3 business days. Same-day rush available.

OEM Quality — Remanufactured to original equipment standards with component-level inspection and testing.

Direct Support — Text or call us to speak with a real person. We help you find the right module the first time.

6-Month Unlimited Mileage Warranty — Drive with confidence. Our warranty covers you regardless of how many miles you put on.

Our Commitment

We exist to keep your vehicle out of the dealership and back on the road—with quality parts, transparent pricing, and expert support from start to finish. Every module we sell meets the same standards we'd expect for our own vehicles.