MerCruiser 6.2L Cruiser DTS Inboard Marine Engine

Description

Repower motor yachts with the MerCruiser 6.2L Cruiser DTS Inboard Engine to secure electronic throttle control and balanced cruising thrust. This 6.2L 90° V8 produces 300BHP at 5,000 RPM through multiport electronic injection. Factory closed freshwater cooling protects internal galleries, though raw water pump impellers require strict seasonal inspections in sedimented inland channels.

A cast iron parent-bore block supports lightweight aluminum alloy cylinder heads carrying 2-Valves per cylinder. The 12V negative-ground electrical system features a 70A marine alternator, high-torque starter, and SmartCraft PCM 112 digital computer. Unrigged dry weight totals 862 lbs without transmission. The engine stance measures 36.3in long by 29.1in wide and 22.0in high. The lube sump holds 1.24 US gal of oil, while the closed heat exchanger circuit contains 5.02 US gal of coolant.

Key Features of MerCruiser 6.2L Cruiser DTS

Commercial launch operators buy MerCruiser 6.2L Cruiser DTS engines to eliminate mechanical shift cable bind on twin-engine passenger vessels. Digital Throttle and Shift controls communicate electronically with helm binnacles for precise gear engagement.

• Digital Throttle and Shift actuators replace mechanical push-pull cables with fly-by-wire electronic commands.
• Multiport electronic injection manages fuel atomization across individual intake runners under PCM 112 authority.
• A performance-tuned scroll intake manifold optimizes low-end torque curves between 2,500 and 3,500 RPM.
• Factory closed cooling routes engine antifreeze through a brass tubular heat exchanger.
• The GM small block V8 bellhousing matches ZF 63A and Walter V-Drive marine transmissions.
• Aluminum alloy cylinder heads trim overall engine mass to enhance vessel fuel economy.
• The 70A marine alternator provides continuous electrical output to recharge dual onboard battery banks.

Dynamometer Bench Testing Operational Parameters

Controlled dynamometer testing records 240BHP continuous output at 4,600 RPM and 300BHP maximum output at 5,000 RPM. The 377 cu in displacement generates 365 ft-lbs of shaft torque at 3,800 RPM. The closed cooling circuit stabilizes engine operating temperatures between 165°F and 175°F under full continuous load. Engine lube oil pressure holds steady between 40 PSI and 60 PSI at 4,200 RPM. Crankshaft journal runout maintains strict limits under 0.0005in TIR to protect bearings against premature fatigue.

Field Rigging Protocols Vessel Restrictions

Digital shift binnacles eliminate helm resistance, requiring less than 1 lb of electronic lever effort during docking. Marine riggers must not install this high-RPM gasoline inboard motor in commercial heavy displacement tugboats or steel barges that require deep reduction diesel torque curves below 1,600 RPM.

• Drain and change crankcase oil every 100 run hours or 12 months using NMMA certified oil.
• Inspect the raw seawater pump flexible impeller every 100 operating hours to maintain water flow.
• Inspect heat exchanger pencil zinc anodes every 6 months to stop internal galvanic corrosion.

Factory Warranty Manifest Details

Mercury Marine provides 1-Year commercial or 3-Year limited recreational warranty coverage. The export wooden shipping crate contains the 6.2L DTS inboard bobtail engine, torsional damper, closed cooling heat exchanger, 70A alternator, starter motor, SmartCraft wiring harness, and complete factory operator service documentation manuals.