Mermaid J-444TCAE108 Electronic Common-Rail Marine Propulsion Engine

Description

Dawn crew transfer runs to offshore wind farms demand low exhaust smoke, making the Mermaid J-444TCAE108 Electronic Marine Diesel an ideal platform for fast workboats. This common-rail 4.4L Inline-4 produces 130BHP continuous output at 2,000 RPM. High-pressure injection demands strict 2-micron fuel filtration to prevent microscopic debris from scouring sensitive injector needles.

Monobloc cast iron metallurgy shapes the parent-bore cylinder block and 16-Valve cylinder head for structural endurance under high common-rail pressures. The marine electrical system features 12V or 24V isolated ground wiring mounting a 3.0 kW starter motor and 100A alternator. Dry engine mass registers at 1,091 lbs. The mounting stance measures 37.4in long by 28.3in wide and 34.3in high. The lube oil pan holds 3.70 US gal and closed cooling passages hold 4.76 US gal.

Key Features of Mermaid J-444TCAE108 Electronic

Wind farm fleet managers buy Mermaid J-444TCAE108 Electronic engines to meet strict harbor smoke rules on commercial crew tenders. The electronic common-rail system balances injection cycles to cut diesel clatter and improve fuel burn.

• High-pressure common rail injection atomizes fuel at 1,600 bar for smoke-free combustion across idle speeds.
• A seawater-cooled charge air intercooler drops manifold temperatures to support 145BHP intermittent power at 2,200 RPM.
• The 16-Valve cylinder head optimizes airflow efficiency across continuous commercial duty cycles.
• An SAE 3 flywheel housing mounts PRM 500, PRM 750, and ZF 63A marine gearboxes.
• The tubular heat exchanger cooling system features a corrosion-resistant tube core and raw water pump.
• A 3.70 US gal oil sump maintains adequate lubrication reserve for 500-hour commercial intervals.
• The 100A marine alternator supplies high amperage to support onboard navigation computers and radios.

Dynamometer Common Rail Bench Parameters

Controlled dynamometer testing records 130BHP continuous P1 output at 2,000 RPM and 145BHP peak intermittent power at 2,200 RPM. Shaft torque hits 370 ft-lbs at 1,500 RPM to lift semi-displacement service hulls onto plane. Fuel rail pressure reaches 1,600 bar under full load while turbo boost stabilizes at 1.3 bar. Tubular heat exchangers hold jacket coolant between 175°F and 185°F. Main bearing journal runout remains under 0.0004in TIR to protect bearings against common-rail combustion pressure spikes.

Field Servicing Operating Hull Constraints

Electronic throttle binnacles require 1 lb of actuation force, providing precise throttle positioning without cable drag. Vessel operators must not install this common-rail electronic engine in hulls lacking dedicated 2-micron fuel water separators or in remote regions lacking ultra-low sulfur diesel fuel supplies.

• Drain and renew crankcase lube oil and spin-on filter every 500 operating hours or 12 months.
• Replace 2-micron primary and secondary fuel filter elements every 250 operating hours.
• Inspect raw seawater pump flexible impellers and clean sea strainers every 250 operating hours.

Factory Warranty Manifest Breakdown

Mermaid Marine covers this electronic diesel with a 2-Year or 3,000-Hour commercial warranty. The heavy export wooden crate includes the J-444TCAE108 bobtail diesel core, SAE 3 housing, heat exchanger cooling package, 100A alternator, starter motor, electronic ECU harness, engine mounts, and complete factory operator service manuals.