2025 Mercury Marine® FourStroke 5 hp Propane Base

2025 Mercury Marine® FourStroke 5 hp Propane Base

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  • Year 2025
  • Make Mercury Marine®
  • Model FourStroke 5 hp Propane
2025 Mercury Marine® FourStroke 5 hp Propane Base

2025 Mercury Marine® FourStroke 5 hp Propane Base

2025 Mercury Marine® FourStroke 5 hp Propane

Reliability, Portability, and Power

Mercury’s 5hp FourStroke Propane outboard provides more convenience and less hassle. Now you can power your boat with the same propane used for your grill and eliminate the need to haul gasoline. The 5hp FourStroke Propane outboard with a large 123cc displacement offers best-in-class power by delivering a true 5hp.

Mercury’s all-new 5hp FourStroke Propane outboard provides more convenience and less hassle. With a large 123cc displacement, it offers best-in-class power by delivering a true 5 horsepower. Ideal for aluminum tiller, inflatable or jon / utility boats.

Engine

Engine Power 5 hp (3.7 kW)
Engine Type 1 cylinder
Displacement 7.5 CID (123 CC)
Throttle Full: 5000-6000 RPM
Oil Type Recommended: Mercury FourStroke Oil 10W-30
Gear Ratio (Primary) 2.15:1 | Shift: F-N-R
Emissions CARB star rating: 3
Bore 2.32" (59 mm)
Stroke 1.77" (45 mm)
Ignition CDI w/electronic spark advance
Cooling Water-cooled with thermostat
Steering Tiller
Exhaust Through prop

Operational

Operating Conditions Shallow water trim range: 16°

Electric

Starter Manual

Fuel System

Fuel System Propane Mixer | Induction: 2-valve pushrod (overhead valve)

Dimensions

Length Shaft: 15" (381 mm) | 20" (508 mm)

Capacities

Fuel Capacity Not included

Weights

Dry Weight Lightest model available: 59.5 lbs (21.2 kg)

Features

Features Engine protection operator warning system: Low oil pressure/Over-rev | Trim positions: 6 | Shallow water drive: Yes | Propane Tolerance: HD-5 (65% or greater propane)

Color

Colors Phantom Black

Product Photography