Sole SM-103 Heavy-Duty Inboard Diesel Engine Gearbox Package

Description

Certified for IMO Tier II and CCNR II commercial emissions, the Sole SM-103 Inboard Diesel Engine package powers heavy displacement fishing vessels and passenger ferries. This naturally aspirated 4-Stroke Inline-6 5.0L Mitsubishi-based diesel yields 92 BHP continuous power at 2,300 RPM. Large displacement guarantees steady low-RPM torque, though the 926 lbs dry mass demands heavy structural engine bearers.

Heavy monobloc cast iron casting integrates six parent-bore cylinders with an OHV cast iron cylinder head. A 12V electrical setup mounts a 3.0 kW starter motor and a 120A marine alternator. Dry weight totals 926 lbs before gearbox attachment. Physical mounting stance dimensions span 48.0in long by 24.4in wide and 30.7in high, featuring an SAE 3 housing, SAE 11.5 flywheel, and a 3.17 US gal oil sump capacity.

Key Features of Sole SM-103 Heavy-Duty

Commercial fishing vessel operators buy Sole SM-103 inboard diesel engine packages to repower coastal netters, passenger ferries, and harbor tugs. The SAE 3 bellhousing mates with Technodrive TM 93 or PRM 500 hydraulic marine transmissions.

• Large 5.0L naturally aspirated displacement produces 92 BHP continuous power for heavy workboat duties
• Bosch in-line mechanical direct fuel injection pump meters fuel without sensitive electronic controls
• High-output 120A marine alternator maintains battery bank reserves for commercial navigation instruments and haulers
• Tubular heat exchanger cooling isolates raw seawater from internal engine block passages
• Monobloc parent bore cylinders prevent liner seal failures under continuous commercial drag net towing
• Heavy SAE 11.5 flywheel smooths out torque pulses at low trolling and docking speeds
• Heavy-duty marine air cleaner filters salt air intake to safeguard internal cylinder bore surfaces

Dynamometer Continuous Bench Load Ratings

Dynamometer load testing confirms 92 BHP continuous power at 2,300 RPM with 103 BHP maximum rating at 2,500 RPM. Tubular heat exchanger flow stabilizes coolant temperatures at 175°F under full-power commercial trawling. Sump oil pressure holds at 50 PSI at operating temperatures across a static installation tilt limit of 15°. Direct injection pop pressures test at 200 bar, while crankshaft journal tolerances remain within 0.0006in TIR to withstand the continuous reversing thrust and high radial loads generated by heavy commercial hydraulic gearboxes.

Helm Control Preventive Maintenance Rules

Mechanical control cables actuate fuel rack and shift arms with under 4 lbs of input force. Do not install this 926 lbs heavy cast iron engine in light planing hulls or shallow draft skiffs that lack sufficient displacement depth to maintain positive vessel trim.

• Evacuate 3.17 US gal of 15W-40 lube oil every 250 operating hours via the manual brass sump pump
• Replace the primary canister fuel filter every 500 operating hours to preserve mechanical pump plungers
• Inspect raw water pump impeller and heat exchanger sacrificial zincs every 500 operating hours

Commercial Warranty Factory Shipment Inventory

Solé Diesel provides a 2-Year or 3,000-Hour commercial marine manufacturer warranty. The factory package includes the complete engine core, chosen hydraulic transmission, 3.0 kW starter, 120A alternator, flexible commercial engine mounts, deluxe instrument panel with wiring harness, oil sump drain pump, and Mitsubishi service documentation.