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Price: $2,295.00
Points to Purchase:229500
Points Earned:0
Bonus Points Earned:0

Item #: HDP-3408303
Availability: In Stock
Usually ships In 1-2 Business Days

Cummins N14 ECM & M11 Celect Plus ECM – Remanufactured ECM For Sale

Looking for a reliable replacement Cummins N14 ECM or M11 Celect Plus ECM? Heavy Duty Powertrain, Inc. offers professionally remanufactured Cummins ECMs for N14 and M11 Celect Plus diesel engines. Our ECMs are tested, programmed to your engine serial number, and ready to install.


Compatible with part numbers: 3408303, 3408303RX, 3096662, 3096662RX, 3096662-rx, 3408300, 3408300RX, 3408300-RX.


All ECMs are remanufactured in the USA and usually ship within 1 business day.


Cummins N14 / M11 ECM Pricing

$1,695 + $600 Core Deposit = $2,295 Total


The $600 core deposit is refundable once your original ECM is returned in repairable condition.


Every ECM purchase includes:


Engine Serial Number programming

Horsepower programming options

Road speed and cruise speed settings

Idle RPM adjustment options

Technical setup assistance

Programming Information Required

To properly program your Cummins N14 ECM or M11 Celect Plus ECM, we will ask for:


Engine Serial Number (ESN)

Current horsepower rating

Desired horsepower and torque settings

Rear tire size

Rear axle ratio

Transmission type (manual or automatic)

Maximum vehicle speed setting

Cruise control speed setting

Desired idle RPM settings for cold weather operation

Fast Shipping Available

Shipping options within the USA, Canada and Australia (add 3 days to ship out, ships via US Mail to Australia):


$35 UPS Ground Shipping

$90 UPS Next Day Air to USA 

Most orders ship within 1 business day. International shipping is also available to Canada, Mexico, Australia and other countries. Email your billing address, shipping address to terrychron@gmail.com for an international shipping quote or use WhatsApp 727-494-5514.


Ready To Order Your Cummins ECM?

Call Heavy Duty Powertrain, Inc. at 727-494-5514 to place your order or speak directly with an ECM technician.


We can also help identify the correct ECM for your truck using your engine serial number.


Cummins N14 ECM Warranty

All remanufactured ECMs include a 1 Year Unlimited Mileage Warranty covering the ECM only. Call for complete warranty details.


Cummins ECM Return Policy

You have 7 days from delivery to return the ECM for a refund. A $300 restocking fee applies and shipping costs are non-refundable. The ECM may be used for testing during this period as long as it is not physically damaged.


Important Installation Information

Replace the fuel solenoid before installing the ECM

Replace ECM connector O-rings

Inspect ECM connectors for cracks, melted plastic, or damaged locking tabs that hold the terminal into place inside the ecm connector (check the depth for differences)

We also sell:


Cummins N14 ECM connector repair kits

M11 ECM connector repair kits

Cummins engine wiring harnesses

Aftermarket engine harnesses

Replacement ECM Connector Part Numbers

HDP3162750 – Port A Sensor Harness

HDP3162751 – Port B OEM Harness

HDP3162752 – Port C Injector Harness

These ECM connector kits are obsolete and no longer manufactured, but we still have limited inventory available.


About Heavy Duty Powertrain, Inc.

Heavy Duty Powertrain, Inc. has been selling Cummins N14 ECMs and M11 ECMs for over 20 years. We specialize in N14, M11 and L10 Reman ECMs and Wiring harness, and ecm related tech support like help with diagnosing and ecm related misfire. 


Location: 5090 N Oak Rd, Davison, Michigan 48423

Phone Hours: 9am – Midnight EST, Monday through Sunday

Phone: 727-494-5514

WhatsApp: 727-494-5514

If we miss your call, send a text message and we will get back to you as soon as possible.


Thank you for choosing Heavy Duty Powertrain, Inc.

  • Weight: 7-9 pounds depending on the
  • Box size and stuffing material box is around 12 x 12 x 6
  • Ships out within 1 business day usually.
  • Who do we ship with? UPS for USA and Canada and Puerto Rico. US Mail for Other parts of the world, to save money. Add 3 days for us to get ecms to the post office. Harnesses when in stock ship usually within 1-2 business days. If something is urgent please let us know right when ordering. 
  • Care: Unplug the battery and cover well when cleaning your engine. Avoid spraying the harness as much as possible especially avoid connectors. Often times a no start shows up after an engine wash and is due to water touching terminals and can be damaging for an ECM. Make sure to keep those ECM Connector dry or dry them out thoroughly. We had a customer with this no start scenario get their truck started by drying out the ecm connectors after an engine wash.