Mermaid J-444TCAE97 Electronic Common-Rail Marine Diesel Engine

Description

Meeting stringent harbor emission standards requires a compliant product solution like the Mermaid J-444TCAE97 Electronic Marine Diesel engine. This intercooled 4.4L Inline-4 produces 115BHP continuous output at 2,000 RPM through high-pressure common rail injection. Common-rail hardware requires dedicated primary fuel water separation to prevent microscopic abrasive fuel contaminants from damaging precision electronic nozzles.

Monobloc cast iron metallurgy shapes the parent-bore cylinder block and 16-Valve cylinder head for structural endurance under continuous duty cycles. Electrical options feature 12V or 24V isolated ground loops carrying a 3.0 kW starter motor and 100A marine alternator. Dry mass equals 1,091 lbs without transmission. The engine stance measures 37.4in long by 28.3in wide and 34.3in high. The lube sump holds 3.70 US gal and cooling galleries hold 4.76 US gal.

Key Features of Mermaid J-444TCAE97 Electronic

Passenger ferry services buy Mermaid J-444TCAE97 Electronic engines to operate clean commuter runs in crowded coastal harbors. The common-rail electronic injection system provides smokeless low-idle operation and quiet cruising decibel levels.

• High-pressure common rail injection meters fuel across multiple phases for clean exhaust output.
• A seawater-cooled charge air intercooler reduces intake air temperatures to produce 130BHP intermittent power.
• The 16-Valve monobloc cylinder head provides smooth airflow across continuous 2,000 RPM operations.
• An SAE 3 flywheel housing mounts heavy PRM 500, PRM 750, or ZF 45A transmissions.
• The tubular heat exchanger cooling package features a corrosion-resistant copper-nickel tube bundle.
• A 3.70 US gal oil sump provides ample lubrication reserve for 500-hour service intervals.
• The 100A marine alternator supports complex onboard navigation computers, radars, and communications equipment.

Dynamometer Common Rail Load Data

Continuous dynamometer evaluations certify 115BHP continuous P1 output at 2,000 RPM and 130BHP peak intermittent power at 2,200 RPM. Shaft torque reaches 350 ft-lbs at 1,500 RPM to propel displacement passenger launches through chop. Rail pressure maintains 1,600 bar under full load while turbo boost stabilizes at 1.2 bar. Heat exchanger cooling holds engine coolant between 175°F and 185°F. Main bearing journal runout remains under 0.0004in TIR to protect bearings against continuous mechanical shock loads.

Field Servicing Operating Hull Constraints

Fly-by-wire electronic throttle binnacles require 1 lb of actuation force, providing smooth throttle modulation without mechanical cable friction. Commercial riggers must not install this common-rail electronic diesel in applications lacking ultra-low sulfur diesel fuel or in remote areas lacking diagnostic computer tools.

• 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 commercial propulsion engine with a 2-Year or 3,000-Hour warranty. The heavy wooden shipping crate includes the J-444TCAE97 diesel engine core, SAE 3 housing, heat exchanger package, 100A alternator, starter motor, electronic ECU harness, engine mounts, and complete factory operator documentation manuals.