ECU / ECM Controller – Electronic Control Unit Module
Part Numbers: 157-3165 · 20R-2315
Overview
High-quality replacement ECU/ECM electronic control unit for a range of Caterpillar excavator models. Designed as a direct-fit unit for engine control and diagnostic functions.
Key Features
- Direct replacement for OEM ECUs (part numbers 157-3165, 20R-2315)
- Standardized interface for straightforward installation – no extra modifications required
- Durable construction suitable for heavy equipment environments
Compatible Models
Fits the following Caterpillar excavators:
- CAT 312C
- CAT 315C
- CAT 318C
- CAT 319C
- CAT 320C
- CAT 321C
- CAT 322C
- CAT 325C
- CAT 330C
- M325C
- E320C
Important – Programming Required
This product requires programming before use. To program the unit we will need the following information:
- Engine nameplate (photo or details)
- Machine serial number nameplate (photo or details)
- Current ECM/ECU part number
Please provide those items when ordering or contact us to arrange programming. Professional installation or assistance from an authorized technician is recommended if you are not familiar with ECU programming and vehicle/system calibration.
Installation
- Standardized connector and mounting points for easy replacement
- Users can perform replacement and basic maintenance without modification
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