- CXO300 nuovo

Engine designation CXO300
Crankshaft power, kW (hp) 252 (338)
Propeller shaft power, kW (hp) 224 (300)
Engine propping speed, rpm 3700-4000
Displacement, L (cu.in.) 4.4 (266)
Number of cylinders 8
Bore/stroke, mm (in.) 84 (3.3) / 98.5 (3.9)
Compression ratio 16
Weight, kg (lb) 375 (826)
Ratio 1 (Propeller speed) 1.23:1 (3259)
Ratio 2 (Propeller speed) 1.46:1 (2739)
Peak torque, Nm (ft.lb) 650 (479)
Aspiration Twin-turbo
Shaft Length, inch(mm) 25”(635)/30”(762)/35”(889)
Emission compliance EPA 3, IMO 2, RCD 2
Start assist Glow plugs
Rating Light-duty commercial
Trim range -4° to +16°
Tilt range 71°
Engine Oil Spec API CI-4 / SAE 5W40
Gear Oil Spec API GL-5 / SAE 75W140
Propeller spline spec 1.25” shaft / 19 tooth
Colour options Black / White
CXO300 - 300HP diesel outboard coxmarine.com
CXO300 Instruments & controls
Engine block and head • Aluminium alloy block and heads • 60 degree V8
Engine mounting • Standard outboard fitting layout • 6-bolt mounting with multi-hole adjustment
Fuel system • High pressure common rail fuel injection • On-engine fuel filtration
Air inlet and exhaust system • Exhaust gas recirculation system • Twin turbochargers • Air filters with replaceable inserts • Closed crankcase ventilation
Transmission • All outboards offer standard and counter rotating capability, programmable through the ECU
Cooling system • Thermostatically regulated raw water cooling • Tubular heat exchanger

Electric system • 12V/24V two-pole electrical system • 80A marine alternator
Instruments/control • Electronic controls • Joystick to manage up to 6 engines • Keyless key fob • Wireless MOB and Key • NMEA 2000 CAN displays and controls • 4.8”/7”/10”/12” screen sizes • Compatible with the off the shelf Seastar and Ultraflex steering units, and 19t 1.25 propeller hub kits
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