372-2905 3722905 ECM Engine Control Module Pre-Programmed for CAT C13 C15 C18 D8T 980H
372-2905 ECM engine control module for Caterpillar C9 to C18 engine applications.
- Interchangeability: Replaces part number 372-2905 (3722905).
- Application: Fits for C9, C11, C13, C15 and C18 engines in motor graders, track-type tractors, wheel loaders, articulated trucks, feller bunchers and generator sets.
- Check Your Variant: Match 372-2905 on your current ECM label; send your ESN if you are unsure.
- Programmed Before Dispatch: Send your ESN and VIN after checkout — we flash it to your engine before shipping.
$1,299.00
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Bench-Tested - Every unit powered up and function-tested before dispatch.
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6-Month Warranty - From delivery, against defects in materials and workmanship.
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30-Day Returns - Unused items in original packaging. RMA required.
Product Details
This remanufactured Engine Control Module (ECM / ECU) is an aftermarket replacement for Caterpillar part number 372-2905 (3722905), used on C9, C11, C13, C15 and C18 engine applications including motor graders, track-type tractors, wheel loaders, articulated trucks, track feller bunchers, pipelayers, generator sets and petroleum packages.
Each unit is disassembled, cleaned and inspected. Worn or failed electronic components are replaced, the connector pins are checked for corrosion and fit, and the module is bench-tested under power to confirm it restores factory-specified operating parameters before it leaves our facility.
- Reference Numbers: 372-2905 / 3722905
- Engine Platform: For Caterpillar C9, C11, C13, C15 and C18 engine applications
- Condition: Remanufactured, not new
- Installation: Direct replacement; mounts and plugs in like the unit being removed
- Programming: Programmed to your engine before dispatch using your ESN and VIN
- Testing: Every unit powered up and function-tested before dispatch
- Warranty: 6 months from delivery, with repair or replacement for defects in materials and workmanship
Send Us Your ESN and VIN — We Program The Module Before It Ships
This ECM does not reach you blank. We program it in-house to match your specific engine, so it arrives ready to install with no flashing needed on your side. Our 1–3 business day dispatch window starts from the moment we receive your complete engine information, not from the order date. The sooner you send it, the sooner your module ships.
Please send the following after checkout:
- Engine Serial Number (ESN)
- Vehicle Identification Number (VIN) / machine serial number
- A clear photo of the part number label on your current ECM
- A clear photo of the engine data plate
Installation Notes: Installation and removal by an experienced heavy-equipment technician is strongly recommended. Disconnect the battery before unplugging or connecting the ECM, check the harness connectors for bent pins or moisture, and clear any stored fault codes with your service tool after installation.
Fitment & OEM Interchange
OEM part numbers are listed for cross-reference only. They do not imply that this part was made by the equipment manufacturer. All brand names are used solely to identify compatibility.
| Primary Part No. | Without Dash | Compatible Engine Platform |
|---|---|---|
| 372-2905 | 3722905 | For Caterpillar C9 / C11 / C13 / C15 / C18 engine applications |
Application Chart — Compatible with Caterpillar Equipment
| Equipment Type | Models |
|---|---|
| Motor Grader | 120K, 12K, 12M, 140G, 140K, 140M, 140M 2, 14M, 160K, 160M, 160M 2, 16M, 24M |
| Track-Type Tractor | D6R, D6R III, D6R STD, D6T, D7R XR, D8N, D8R, D8T, D9T |
| Wheel Loader | 950H, 962H, 966H, 972H, 980C, 980G, 980H, 988H |
| Articulated Truck | 725, 730, 735, 740 |
| Generator Set | C9, C13, C15, C15 I6, C18, C18 I6 |
| Industrial Engine | C9, C11, C13, C15, C18 |
| Petroleum Engine | C9, C11, C13, C15, C18 |
| Truck Engine | C15 |
| Track Feller Buncher | 511, 521, 521B, 522, 522B, 532, 541, 541 2, 551, 552, 552 2, 2290, 2390, 2391, 2491, 2590 |
| Pipelayer | 583T, 587T, PL83, PL87 |
| Wheel Dozer | 814F II, 824C, 824H, 834H |
| Landfill Compactor | 816F II, 826H, 836H |
| Soil Compactor | 815B, 815F II, 825H |
| Track Loader | 973C, 973D |
| Excavator | 345D L |
| Asphalt Paver | AP-1055D, BG-2455D, BG-260D |
| Cold Planer | PM-102 |
| Ejector Truck | 730, 740 |
| Integrated Toolcarrier | IT62H |
| Petroleum Gen Set | C15, C18 |
| Petroleum Package | CX31-C13I, CX31-C15I, CX35-P800, TH35-C11I |
| Power Module | C18 |
| Reclaimer Mixer | RM-300, RM-500 |
| Truck | 770 |
| Wheel Skidder | 525C, 535C, 545C |
| Wheel Tractor | 657G |
Confirm Before You Order: This module is listed against five engine families (C9, C11, C13, C15 and C18), and the right unit depends on your engine rating and application. Check that your current ECM label shows 372-2905 or 3722905 and check your engine data plate. If you are not sure, send us a photo of both together with your ESN and we will confirm compatibility before you buy.
Technical Specifications
| Part Name | Engine Control Module (ECM / ECU Controller) |
| Reference Numbers | 372-2905, 3722905 |
| Condition | Remanufactured |
| Installation Method | Direct replacement |
| Programming | Programmed before dispatch to your ESN and VIN; no flashing required after arrival |
| System Voltage | Application dependent, confirm on data plate |
| Housing Material | Application dependent, confirm on data plate |
| Connectors | Same layout as the 372-2905 unit being replaced; compare with your current ECM |
| Circuit Protection | Application dependent, confirm on data plate |
| Testing | Bench-tested: powered up and function-tested before dispatch |
| Warranty | 6 months from delivery against defects in materials and workmanship (repair or replacement) |
| Package Contents | 1 × Engine Control Module (programmed to your engine) |
This module is intended to restore factory-specified performance only. It does not alter, disable or remove any emission control function.
Common Failure Symptoms
| Symptom | What It Usually Points To |
|---|---|
| Motor grader or C15 engine cranks but will not start, even with good fuel supply | ECM not firing the injectors, or an internal driver circuit failure |
| Service tool cannot connect to or read the ECM | No power or ground reaching the ECM, a data link fault, or a failed module |
| Engine stalls or shuts down at random under load | Intermittent internal ECM fault, or a loose connector or ground |
| Many unrelated fault codes appear at the same time | Unstable ECM supply voltage or an ECM that is failing internally |
| Machine stays in derate or low power with no sensor fault found | ECM logic or configuration fault |
| One cylinder misfires and swapping the injector does not fix it | A failed injector driver inside the ECM, or damaged injector wiring |
| Engine runs, then will not restart once it is hot | Heat-related failure of an internal ECM component |
| Green or white corrosion on the ECM connector pins | Water intrusion that may have damaged the circuit board |
Check the Simple Causes First: Before replacing the ECM, test battery voltage, clean and tighten the ground straps, and inspect the harness and connectors for damage or moisture. These cheaper faults cause many of the same symptoms.
Shipping & Quality Guarantee
- Bench-Tested: Every unit is powered up and function-tested before dispatch.
- Fast Dispatch: Dispatched in 1–3 business days. For this programmed item, the window starts once we receive your ESN and VIN.
- Free Express Shipping: Delivered in 3–8 business days by DHL, FedEx or UPS.
- Tracking: Tracking number provided within 24–48 hours of dispatch.
- Protective Packaging: Anti-static bag and padded carton.
- 6-Month Warranty: From delivery, against defects in materials and workmanship.
- 30-Day Returns: Unused items in original packaging; an RMA number is required.
- Technical Support: Send photos of your ECM label and data plate and our team will help confirm fitment.
Shipping & Customs Notice
Our price covers the product and shipping only. Import duties, VAT, GST and any other local taxes or customs clearance fees are not included and are the buyer’s responsibility.
All trademarks and part numbers are used for compatibility reference only. LIUCHUANG Parts is an independent aftermarket parts supplier and has no official or authorized relationship with any equipment manufacturer.
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