🏷️ Basic Information Identification Make: Mercury Mariner Model: Outboard Horsepower: 30-40 HP Engine Cylinders: 2 Engine Stroke: 2-stroke Models Covered Covered Models: 30, 30 Marathon, 30 Sea Pro, 40, 40 Marathon, 40 Sea Pro Serial Numbers Us Serial Numbers: 0G044027 and above Belgium Serial Numbers: 09855139 and above 📋 Manual Details Manual Type Type: Factory Service Repair Manual Delivery Format: PDF Download Digital Delivery: True Content Scope Scope: All repair procedures Content Structure Included Sections: Important Information, Electrical, Fuel System, Powerhead, Mid-section, Lower Unit, Attachments/Control Linkage, Manual Starter ⚙️ Engine Specifications Engine Type Type: 2-stroke Engine Configuration Cylinders: 2 Power Output Horsepower Range: 30-40 HP 🔧 Transmission Drive Type Type: Outboard (Lower Unit) 🔧 Maintenance Service Information Manual Purpose: Repair and Maintenance Target Audience: Mechanics and Owners