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A3 Electronic Control Unit (ECU)

• One of the most advanced electronic control systems available for Cat marine engines. • Faster with more memory capability than ADEM 2 • Compatible with several optional display systems • Does not require fuel cooling • Enhanced input/output capacity • Rugged marine design and IP66 connectors • Award-winning circuitry design

Engine-Mounted Instrument Panel

• Integrated MPD display for quick response and effective local control • Optional local speed control • Optional individual cylinder exhaust temperature scanner with data link for remote mounting • Local E-stop, warning indicators, horn • Plug & Run connections allow mounting on port or starboard side of engine

Marine Power Display (MPD)

• Graphic display of engine operating parameters in analog, digital, or bar-chart format • Rugged weatherproof construction • Fully user-configured display screens • Marine classification society-type approved • Diagnostic messages and alarms • Three-tier prioritization of events and diagnostics • Multilingual capability • Night-mode LCD display • ISO symbols for parameter identification

High Capacity High Efficiency Turbos

• Standard marine twin turbocharger configuration. • More reserved power for superior part load performance at continuous ratings • Turbos tuned for high power and excellent fuel consumption

Engine-Mounted Cat® Plate-Type Heat Exchanger

• Separate Circuit Aftercooled (SCAC) • Single heat exchanger for both jacket water and aftercooler systems • Single inlet and outlet connections for sea water • Lightweight and compact • Factory-installed piping and connections

Rigid Wiring Harness

• Highly durable: long service life • Flexibility for custom wire additions • Lined with fire retardant foam • Cost efficient replacement for premium wiring • Marine classification society approved

Power Distribution Box

• Isolates “control power” from alternator/starter/jacket water heater power • Mountable off engine • Allows end user to choose up to three independent power sources • Has built-in circuit breakers and switches for easy troubleshooting

Marine Classification Society Approvals

• ABS/DNV/LR/GL/CCS/BV/RINA

Electronic Features

• 3D histogram data of engine operation (load, speed, time) • Load feedback signal for CPP operation • Electronic torque limit for re-power and torque limited application equipment • Programmable droop • Adjustable governor gains • Condition-based maintenance • Monitoring features • Serial data bus communications • Primary and secondary A3 controllers on all propulsion engines

Cat Pilot House Panels

• Cat pilot house panels with or without Marine Power Display (MPD) • Easily connected to the engine customer connector • Ability to have full function helm panels and reduced function wing panels

Unit Injectors

• Caterpillar designed and built system • “Drop-in” installation • No threaded fuel connections • High pressure only inside injector does not require double wall lines or leak collection devices

Power Take-off

• Power take-off adapters available • Auxiliary drives for power take-offs for hydraulic pumps and compressors

Engine-Mounted Gear-Driven Pumps

• Standard engine-mounted aftercooler pump • Standard engine-mounted jacket water pump • Optional engine-mounted, gear-driven, high capacity sea water pump

Engine Mounting System

• Rigid mounting points • Optional resilient mounting

In-Hull Overhaul

• Easily removable side covers • Accessible bearing caps