331-7539 · E323D · 281-0119 · 286-3683 – Programmed ECM / ECU for CAT 320D (E320D) Excavator – C6.4 / C6.6 Engine

Overview

Replacement Engine Control Module (ECM/ECU), supplied pre-programmed and intended as a direct replacement for compatible CAT 320D / E320D excavators with C6.4 or C6.6 engines. Manufactured from high-quality materials for durability and reliable operation.

Key Features

Pre-programmed: Unit is programmed prior to shipment to simplify installation.
Direct replacement design: Built to match the original equipment connector and mounting points for straightforward installation when compatible.
High-quality construction: Manufactured with durable materials to withstand typical operating conditions.
Multiple part numbers supported: See compatibility list below.

Compatible Part Numbers

331-7539
E323D
281-0119
286-3683

Model Compatibility

CAT 320D Excavator
E320D
Engines: C6.4, C6.6

Before ordering, verify the part number printed on your existing ECM and confirm your machine model and engine to ensure compatibility.

Installation & Use

The ECM is supplied programmed and is intended for direct installation in matching machines.
Professional installation is recommended. Always disconnect the battery before working on the electrical system.
Handle wiring and electrical connectors carefully-electrical components are sensitive and can short if mishandled.

Important Notes & Warnings

Price includes tariff to the United States only. Other countries may incur additional duties or taxes.
Verify the electrical configuration and part number of your machine before purchase.
Because wiring and electrical parts are sensitive, improper handling can cause short circuits or damage. If you are not experienced with vehicle/equipment electronics, have a qualified technician perform the installation.