FPT N67-570 EVO Bobtail Inboard Marine Diesel Engine

Description

Attaining exceptional power-to-weight performance transforms planing hull agility in demanding tactical interdiction missions. The FPT N67-570 EVO Inboard Marine Diesel Engine produces 570 BHP at 3,000 RPM from a 6.7L displacement casting weighing 1,369 lbs. Operators must clean raw water strainers after coastal runs, because sediment buildup in the intercooler triggers electronic wastegate boost cutbacks.

A monobloc 24-Valve gray iron head features a reinforced valvetrain to withstand high exhaust backpressures under electronic wastegate control. The parent-bore cylinder block resists thermal expansion across all six cylinders. A 12V negative ground marine electrical network includes a 12V 3.0 kW starter and a heavy 12V 120A marine alternator. Dry mass reaches 1,369 lbs within an envelope of 42.9in length, 33.3in width, and 32.5in height with a 4.49 gal wet sump.

Key Features of FPT N67-570 EVO

Custom defense boatbuilders buy FPT N67-570 EVO propulsion engines to power elite naval fast attack craft and rescue command launches. The precision-machined SAE 3 bellhousing with SAE 11.5 flywheel mounts to ZF 305A and Twin Disc MGX-5075A marine transmissions.

• Electronic wastegate turbocharger provides precise boost control across transient throttle changes.
• Second-generation high-pressure common rail injection increases fuel atomization for maximum power density.
• Reinforced valvetrain components withstand aggressive cam profiles at 3,000 RPM peak engine speeds.
• Compact tubular heat exchanger circulates coolant through copper-nickel bundles to resist salt scaling.
• High-flow engine-driven raw water pump maintains stable heat exchange during continuous maximum throttle runs.
• Parent bore cast iron block design reduces overall engine weight while preserving structural rigidity.
• High-output 12V 120A marine alternator supports complex shipboard navigation and radar electronics.

Dynamic Bench Load Tolerances

Dynamometer testing validates 370 BHP continuous output at 2,600 RPM and 570 BHP intermittent output at 3,000 RPM. Peak shaft torque reaches 1,180 ft-lbs at 1,900 RPM, providing immediate acceleration onto plane. Common rail injection rail pressure holds 1,800 bar, while turbine inlet temperatures stay below 1,180°F at full power. Closed-circuit heat exchangers stabilize jacket coolant at 182°F under full thermal saturation. Crankshaft journal runout records 0.0004in TIR, while the wet lube sump tolerates static engine installation angles up to 20°.

Field Usability Maintenance Protocol

Digital electronic throttle levers communicate with the engine ECU via dual CAN bus channels, eliminating mechanical push-pull cable friction, wear, and helm control lag. Do not install this 570 BHP high-strung EVO platform in commercial workboat diesel engine repower craft that push heavy displacement mud barges or run uninterrupted continuous-duty dredging cycles.

• Drain 4.49 gal of crankcase lube oil and install new filter elements every 300 operating hours.
• Replace secondary 2-micron fuel filter cartridges and clean water traps every 250 run hours.
• Inspect raw water pump impellers and clean heat exchanger zinc anodes every 100 service hours.

Verified Warranty Crate Manifest

FPT Industrial backs this high-output propulsion engine with a 2-Year or 2,500-Hour commercial warranty. Each shipping crate contains the complete N67-570 EVO bobtail engine, SAE 3 housing, SAE 11.5 flywheel, 12V starter, 120A alternator, flexible isolator mounts, engine wiring loom, and factory service manuals for shipyard installation technicians.