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Genuine Caterpillar 478-7933 Electronic Control Module (ECM). Factory quality assurance, serial-number fitment verification, and fast export dispatch.
Verified Prior to Quotation. Fitment and configuration are cross-checked against your equipment serial number.
Technical Overview
Genuine Electronic Control Module (ECM) Caterpillar 478-7933 for heavy-duty CAT C13–C32 industrial and mining engines. Manages multi-stage fuel injection, cold-start strategy, and automatic engine derate protection.
C11 C15 C7 C9 C18
Supply Assurance
We verify fitment by engine nameplate and serial number, with pre-shipment photos of original packaging.
Direct dispatch from our Chongqing hub for industrial fleets, power plants, and service centers.
Unit price, completeness, export crating, and lead time are confirmed before invoicing.
Technical Data
Reference parameters for engineering selection; exact arrangement details are confirmed prior to shipment. Manufacturer names and part numbers are used for identification reference only.
| Part Number | 478-7933 |
|---|---|
| Cross-Reference / Alternate Numbers | 4787933, CA4787933 |
| Brand | CAT (Caterpillar) |
| Category | Electrical Components |
| Part Name | Caterpillar Electronic Control Module (ECM) |
| Dimensions | 280 × 210 × 65 mm |
| Unit Weight | 2.60 kg |
| Material / Construction | Heavy-duty finned die-cast aluminum housing for thermal dissipation |
| Controller Platform | CAT A4:E4 V2 ECM |
| Supply Voltage | 24 V DC |
| Communication Protocol | SAE J1939 CAN / Cat Data Link (CDL) |
| Compatible Models | CAT C13, CAT C15, CAT C18, CAT C27, CAT C32, CAT 773G, CAT 777G, CAT D9T |
| Application / Fitment | For CAT C11 C15 C7 C9 C18 Engine |
Engineering Advantage
Fitment is verified against your engine model and serial number (S/N) via CAT SIS and Perkins SPI part number lookup before quotation.
Direct supersession and cross-reference lookup: send your old or alternate part number and we will confirm the latest replacement.
100% genuine original factory components in original packaging, verified by pre-shipment warehouse photos and videos.
Part numbers, laser markings, original packaging, and completeness are inspected at our warehouse prior to dispatch.
Reliable stock availability in Chongqing with fixed lead times and export-grade protective packaging.
Fitment & Cross-Reference
Logistics & Packaging
Quantity, export packaging, gross weight, and dispatch lead time are confirmed in your formal quotation.
Before You Order
Provide your engine model, engine serial number (S/N), and part number. Before issuing a formal quotation, our engineers cross-check fitment against Caterpillar SIS, Perkins SPI, or FG Wilson part number cross-reference systems.
Yes. MSDD Engine exclusively supplies 100% genuine original parts in factory-sealed packaging. Before shipment, we provide warehouse photos of original packaging, part markings, and security labels.
Request a Quotation
Check Price & Fitment — share your requirements below and our engineers will verify fitment and stock availability.
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Have detailed specifications (kW/kVA, voltage, duty cycle, or nameplate photo)? Use the full engineering RFQ form →
