CXO300 Technical Data

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 Technical Description

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

CXO300 Instructions & Controls

Instruments/control

  • Seastar electronic controls
  • Seastar joystick to manage up to 6 engines
  • CoastKey keyless fob / wireless MOB technology
  • CAN J1939 Controls and Displays
  • Compatible with NMEA 2000
  • Murphy Powerview display – 4.8”/7”/11”/12”
  • Compatible with off the shelf Seastar steering units