Mercury 115EXLPT 115HP 25in Four Stroke Outboard Motor

Description

Precision die cast aluminum alloy forms the Mercury 115EXLPT Four Stroke Outboard Motor, delivering lightweight high-efficiency propulsion for offshore saltwater runabouts. The 2.1-liter inline four-cylinder engine generates 115 continuous brake horsepower at 5300 RPM. Electronic multi-port fuel injection burns 9.8 gallons per hour at full continuous rating, maximizing vessel cruising range across open coastal waters.

Low-copper aluminum alloy protects external housings against aggressive saltwater galvanic attack. The cylinder block houses parent-bore induction-hardened cast iron sleeves to minimize piston wear. Standard 25-inch shaft housings keep the propeller submerged in ocean chop. Dry weight scales at 363 lbs. Sump volume holds 3.4 quarts with 5/16-inch fuel line couplers.

Key Features of Mercury 115EXLPT

Offshore skippers buy Mercury 115EXLPT inboard engine alternatives to equip 25-inch transom saltwater utility craft with reliable four-stroke power. The low overall engine weight maximizes stern freeboard while delivering brisk hole-shot performance across offshore swells.

• Single overhead camshaft valvetrain design requires zero maintenance lash adjustments for life
• Multi-port electronic fuel injection optimizes fuel vaporization to prevent engine vapor lock
• Long 25-inch shaft length keeps water pump intakes submerged beneath turbulent hull wakes
• Mercury 115EXLPT SmartCraft digital systems broadcast engine speed and fuel flow to helm screens
• Engine Guardian continuously evaluates sensor inputs to guard against low oil pressure damage
• Top-mounted fluid dipsticks and oil filters allow clean routine servicing from upper cowl hatches
• Freshwater flush ports allow simple garden hose connections to rinse internal cooling passages
• High-capacity 35-amp alternators maintain battery reserves during prolonged idling at commercial docks

Combustion Behavior Thermal Limits

Multi-port injectors pulse gasoline at 43 PSI, delivering broad torque across 3000 to 5000 RPM to lift loaded hulls onto plane. Dual wax thermostats regulate internal cooling water between 140°F and 160°F. Exhaust gasses exit through the propeller hub discharge, keeping sound decibels down and fuel burn near 265 g/kWh.

Transom Alignment Stringer Clearance

The 25-inch shaft bracket mounts straight to standard outboard transom cutouts meeting ABYC P-1 standards. Clearances demand 28 inches of tilt swing space inside the motor splash well. Stainless steel transom bolt hardware clamps the engine securely to structural transom knees.

Shift Protocols Operational Limits

Remote mechanical cables afford positive throttle control and crisp gear selection when approaching docks. Cooling water intake screens must be checked for plastic bags before departures. This standard gearcase outboard is not engineered for heavy commercial tugs, dry running, or operation exceeding 6000 RPM.

• Verify raw water tell-tale stream discharge each shift
• Drain fuel water separator collection bowls every 50 hours
• Replace lower gearcase hypoid lubricant every 100 operating hours

Factory Warranty Delivery Manifest

Recreational customers receive a 3-Year factory warranty covering powerhead and gearcase mechanical assemblies. The heavy export carton holds the 25-inch outboard engine, steering attachment kit, transom mounting bolts, operations manual, and factory documentation.