US
Metric

Overview

Cat® C9 ACERT Diesel Marine Propulsion Engine, with ratings of 510-575 mhp (503-567 bhp) at 2500 rpm, meets IMO II emission standards.

Ratings

Power Range
503-567 bhp (375-423 bkW)

Engine

Speed Range
2500 rpm
Configuration
In-line 6, 4-Stroke-Cycle Diesel
Aspiration
TA
Bore
4.41 in
112.00 mm
Stroke
5.87 in
149.00 mm
Displacement
538.00 in3
8.80 L
Rotation from Flywheel End
Counterclockwise
Emissions
IMO II

Dimensions & Weights

Length
47.20 in
1198.00 mm
Width of Engine
38.30 in
974.00 mm
Height
38.70 in
983.00 mm
Approx. Engine Dry Weight
2086.00 lb
946.00 kg

Ratings

Power Range
503-567 bhp (375-423 bkW)

Engine

Emissions
IMO II
Bore
4.41 in
112.00 mm
Stroke
5.87 in
149.00 mm
Displacement
538.00 in³
8.80 l

Dimensions & Weights

Approximate Engine Dry Weight
2086.00 lb
946.00 kg
Height
38.70 in
983.00 mm
Length
47.20 in
1198.00 mm
Width - Engine
38.30 in
974.00 mm
Features

C9 ACERT Features & Benefits

IMO compliant, Caterpillar standard warranty. no visible white or black smoke, parts & service support from worldwide dealer organization, Increased power with ACERT technology

Standard Equipment
  • Air Inlet System
    • Aftercooler (sea water)
    • Air Cleaner/Fumes Disposal (closed crankcase) - shipped loose
    • Turbocharger
  • Control Panels
    • Electronic governor
    • Hydraulic Electronic Unit Injection (HEUI) fuel system
    • Electronic Control Module (ECM)
    • Engine mounted 70-pin dedicated customer connector
    • SAE J1939 data link
  • Cooling System
    • Thermostat and housing
    • Jacket water pump, belt driven, centrifugal
    • Auxiliary sea water pump, gear driven
    • Expansion tank (heat exchanger engines only)
    • Engine mounted heat exchanger, removable tube bundle (for sea water) (heat exchanger engines only)
    • Engine oil cooler
    • Auxiliary sea water lines
    • Transmission oil cooler
  • Flywheel & Flywheel Housings
    • Flywheel, SAE No. 1, 113 teeth
    • Flywheel housing, SAE No. 1
  • Fuel System
    • Fuel filter, RH service on Port, LH service on starboard
    • Fuel transfer pump
    • Fuel priming pump
  • Lube System
    • Crankcase breather
    • Oil filter, front center service
    • Oil filler, in valve cover
    • Oil level gauge, RH service on port, LH service on starboard
    • Oil pan
    • Oil pan drain, RH service on port, LH service on starboard
    • Engine oil pump (gear driven)
  • Mounting System
    • Front support, adjustable height
  • Protection System
    • Overspeed shutoff - electronic
  • General
    • Torsional vibration damper and guard
    • Lifting eyes
    • Literature
    • Engine wiring
    • RH or LH service options
Optional Equipment
  • Cooling System
    • Coolant level sensor
  • Exhaust System
    • Exhaust Temp Sensor
    • Watercooled Elbows
  • Fuel System
    • Fuel cooler
    • Flexible fuel lines
  • Instrumentation
    • OEM Wiring Harness
    • Engine to Engine Harness
    • Wiring Harness
    • Transmission Sensors
    • Marine Power Display System
    • Marine Power Display
    • Marine Power Display Bracket
  • Lube System
    • Oil Filler
    • Sump pumps, manual
    • Sump pump lines
  • Mounting System
    • Vibration isolators
  • Power Take-Offs
    • Crankshaft pulley
    • Damper and Stub Shaft
    • Pulley and Stub Shaft
  • General
    • Damper Guard
    • Belt Guard - Alternator
  • Packing
    • Engine Protective Cover
    • Export Packing