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Caterpillar C9.3-185 Marine Generator Set

CAT C9.3-185 Marine Generator Sets is a 4 Cylinders 9.3 Liter (567.5 in) Displacement Engine with 115.0 mm (4.5 in.) Bore and 149.0 mm (5.8 in.) Stroke.

Equipped with Dual Caterpillar® A3 Electronic Control Unit (ECU) LH with Common Rail Fuel System Rigid Wiring Harness and Electronically Governor.The Prime Power for 50 Hz Generator Set (1500 RPM) of CAT C9.3-185 Marine Generator Sets is 231 kVA (185 ekW).

CAT C9.3-185 Marine Genset Powered by CAT Diesel Engine with EMCP 4 Control Panel, Diesel Genset with Turbocharged & Aftercooled Intercooler.

CAT Diesel Generator Sets Meet Tier III / Tier IV Emission Standards. 

Our Diesel Generator Set Series Includes High Power Medium and High Voltage Generator Sets and High Power Low Voltage Generator Sets. The Engine Provides Electronically Controlled and Mechanical Fuel Injection Systems for Customers to Choose. In Addition to Generating Diesel Generator Sets, We Can Also Supply Marine Diesel, Oil, Gas, Marine Generator Sets.

We Provide Full Life Cycle Services for All Customers, From Design to Power System Supply, From Installation to Commissioning, From After-Sales Service Training to Spare Parts Supply, From Troubleshooting to Overhaul Technical Support.

Advantages of Caterpillar C9.3-185 Marine GenSet

  • Adapts to harsh working conditions, and has high-intensity and heavy-duty work capabilities.

  • The Holset wastegate valve makes the low speed performance more perfect and the power performance better.

  • The cylinder block and cylinder head adopt integrated design to prevent the occurrence of engine water and oil leakage. The parts are 40 % less than other similar engines, and the failure rate is greatly reduced.

  • Using forged steel camshaft and crankshaft, high-strength cylinder design, many parts are cast on the cylinder, with high rigidity, high pressure resistance, good reliability and longer service life.

  • The cylinder liner adopts a platform mesh honing design, which effectively prevents oil leakage with a perfect geometric structure, and adopts advanced technology such as new piston ring components and gasket crimping molding to reduce oil loss.

  • Holset supercharger with integrated wastegate valve, low speed response and strong power.

Technical Specifications

Basic Introduction of CAT C9.3-185 Marine Generator Set

Engine Model: C9.3-185
Engine Type: I-6, 4-Stroke-Cycle-Diesel
Displacement: 9.3 L
Rated Speed: 1500 RPM
Aspiration Method: Turbocharged-aftercooled aspiration
Emission Standard: EPA Tier 3 / IMO II certified / CCNR Stage II
Bore * Stroke: 115 mm * 149 mm / 4.5 in * 5.8 in
Packing Size(L * W * H): 3298 mm * 1405 mm * 2138 mm
Wet Weight: 3402 kg
Lead Time: 15-30 Working Days
Payment Terms: T/T ,L/C

Engine Model

Rated Speed


Fuel system type

C9.3-185 185 kW @ 1500 RPM Turbocharged Aftercooled Aspiration Common Rail
C9.3-235 235 kW @ 1500 RPM Turbocharged Aftercooled Aspiration Common Rail


General Specification of CAT C9.3-185 Marine Generator Set

Basic Engine Specifications I-6, 4-Stroke-Cycle-Diesel Displacement 9.3 Liter (567.5 cu in)
Rated Engine Speed 1500 RPM Aspiration Turbocharged Aftercooled Aspiration
Lube Oil System 24.5 L (6.5 gal) Length 3298 mm(129.8 in)
Cooling System 72 L (19 gal) Width 1405 mm(55.3 in)
Oil Change Period 500 Hours Height 2138 mm(84.2 in)
Flywheel Housing Sae No. 03 Weight Net Dry (Approx.) 3402 kg(7500 lb)
Flywheel 126 Teeth Bore * Stroke 115 mm * 149 mm(4.5 in * 5.8 in)
Control Mode Electronically Governed Cooling Way Radiator Cooled
Power 185 ekW Frequency 50 Hz
Emissions U.S. EPA Tier 3 / IMO II Certified / CCNR Stage II Counterclockwise Rotation From Flywheel End

Engine Performance of C9.3-185 Marine Generator Set

 Power(%) ekW BHP g/hr bkW g/bkW-hr
100 185 286 13.6 213 203
75 139 214 10.7 160 212
50 93 144 7.5 108 220.1
25 46 74 4.2 55 243.1
10 19 31 2.3 23 322.3

Marine Generator of CAT C9.3-185 Generator Set

Power Factor 0.8 Insulation Class H
Drip Proo IP 23 Air Flow (50 Hz) 0.9 m/s (1907 cfm)
Temperature Rise Class F Frame 44.2/46.2 LC6134B/D
Winding Pitch Code 0.666666667 Terminals 12-lead 2 wires per lead
Voltage Regulation (steady state) ± 0.5 % Excitation System Permanent Magnet
Total Harmonic Content LL/LN Total Harmonic Content LL/LN Wave Form: NEMA=TIF < 50
Wave Form: I.E.C.=THF < 2 %

Optional of CAT C9.3-185 Marine Generator Set

Air System Air Cleaner With Integrated Fumes Disposal  Marine Classification Society (MCS) Approval ABS, BV, DNV, LR, GL, PRS, RINA, CCS, RS
Lube System Simplex Or Duplex Oil Filter, Manual Sump Pump And Oil Drain Control System Extension Harnesses, Mcs Controller (Mgcp III B,
Mgcp II), Emcp 4.2 Control Panel
Generators & Generator Attachments Rh Or Lh Service, Rtd Module, Potential Transformer, Power Analyzer Module, Extension Box, Generator Oversizing, Ip44 Fuel System Double Wall Fuel Lines, Manual Or Electric Priming Pump, Simplex Or Duplex Primary Fuel Filter, Simplex Or Duplex Secondary And Tertiary Fuel Filter
Starting System 24 V Electric Starting Motor, Air Starting Motor, Jacket Water Heater, Charging Alternator Protection System Solas Fuel And Oil Shielding; Safety Shutdowns For Low Oil Pressure, High Water Temperature, And Overspeed

Standard Engine Equipment of CAT C9.3-185 Marine Generator Set

Common Rail Fuel System Plate-Type Oil Cooler Belt-Driven Jacket-Water Pump Watercooled Exhaust Manifold And Turbocharger
Soft Engine Mount Configuration Below Baseframe Sectional Core Radiator Radiator Access Panels Non-Corrosive Galvanized Radiator
Generator Space Heater Voltage Regulator Current Transformers Worldwide Extended Service Coverage (Esc) Available
3-Phase Generator With Permanent Magnet Excitation System Available Ratings To Cover Power Demand Of Both 50 Hz And 60 Hz

Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

The picture of Sale Manual showing the accessories and scopes of supply.

Engine Sale Manual

The picture of Installation Drawing showing the accessories and scopes of supply.

Installation Drawing

The picture of Installation Manual showing the accessories and scopes of supply.

Installation Manual

The picture of Operation Manual showing the accessories and scopes of supply.

Operation Manual

The picture of Engine Parts Catalogue showing the accessories and scopes of supply.

Parts Catalogue

The picture of Test Report and Certifcate showing the accessories and scopes of supply.

Report & Certifcate

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