C7.1 Marine Propulsion Engine (U.S. EPA Tier 3 / IMO II)

Power Range280 bhp - 425 bhp (209 bkW - 317 bkW)

Speed Range2300 - 2700 rpm

EmissionsU.S. EPA Tier 3, IMO II, RCD II, China II

ConfigurationIn-line 6, 4-stroke-cycle diesel

Displacement428in³

AspirationTurbocharged-aftercooled

GovernorElectronic (A5E2 V2 ECM)

Flywheel HousingSAE No. 03

Bore4.13in

Stroke5.31in

Refill Capacity20 L (5.3 gal)

Oil Change Interval500 hrs

RotationCounterclockwise from the flywheel end

CoolingHeat exchange or keel cooled

Dry Weight1676lb

Height34.5in

Length43.1in

Width31.4in

Standard

Water-cooled turbocharger and exhaust manifold

Common rail fuel system

Corrosion-resistant sea water aftercooler

Closed crankcase ventilation system

Starter motors - 12V or 24V

Fuel cooler

Integral engine oil cooler

Vibration damper and guard

Electric fuel priming pump

Self-tensioning multi-vee alternator drive belt

Gear-driven seawater pump (rubber impeller)

Fin and tube-type jacket water heat exchanger

Front and rear engine mounting brackets

Optional

Marine Classification Society (MCS) Approval ABS, BV, CCS, CRS, *DNV-GL, IRS, LR, Class NK, PRS, RINA (*DNV-GL approval available for keel-cooled engines only)

SOLAS double wall high-pressure fuel lines

Engine mounted bilge pumps and auxiliary water pumps with electromagnetic clutch

Engine-mounted secondary alternator - 24V 55 amp or 12V 100 amp

Analogue gauge displays

Transmission gear oil cooler (engine mounted)

Glow plugs

Jacket water heater

Various 5" and 6" water cooled exhaust elbow configurations

Cabin heater (calorifier) connections

Right-hand and high-level left-hand oil dipsticks

Mechanical throttle converter for repower