1999 Mercury 40HP 2-Stroke Outboard Motor – 20-Inch Shaft, Power Trim & Tiller (Used)

Get reliable performance at an excellent value with this 1999 Mercury 40HP 2-Stroke Outboard Motor. Built for durability and dependable operation, this used Mercury outboard is an ideal choice for fishing boats, jon boats, skiffs, aluminum boats, workboats, and other small to mid-sized vessels requiring lightweight yet responsive power.

Although the engine cowl is marked 50HP, this is a 40HP Mercury outboard. The engine has been thoroughly tested and is in good running condition. It starts easily, idles smoothly, pumps water properly, and shifts correctly, providing confidence whether you’re fishing, cruising, or working on the water.

Powered by Mercury’s proven 3-cylinder 2-stroke engine, this outboard delivers strong acceleration, simple maintenance, and an excellent power-to-weight ratio. Compression has been tested at approximately 125 PSI on all three cylinders, indicating healthy internal engine condition and balanced performance across the powerhead.

This model features a 20-inch long shaft, making it suitable for boats with standard long transoms. It also comes equipped with Power Trim & Tilt, allowing you to easily adjust engine angle for improved handling, shallow-water operation, and easier trailering. The tiller steering setup provides direct control and responsive maneuverability without requiring remote controls.

The engine has been test-run on muffs and performs exactly as expected, delivering smooth operation and dependable performance.

At EZ Boats Marine, we carefully select quality used outboard motors and provide expert customer support to help you purchase with confidence. We offer secure worldwide shipping and are available to answer compatibility questions before your purchase.

Key Features

• Genuine Mercury 40HP Outboard Motor
• Model Year: 1999
• Reliable 3-cylinder 2-stroke engine
• Used – Good running condition
• Compression approximately 125 PSI on all cylinders
• 20-inch long shaft
• Power Trim & Tilt
• Tiller steering
• Pumps water properly
• Smooth idle and dependable shifting
• Test run completed
• Excellent for fishing boats, jon boats, aluminum boats, skiffs, and utility boats

Technical Specifications

• Brand: Mercury Marine
• Model Year: 1999
• Horsepower: 40 HP
• Engine Type: 2-Stroke
• Cylinders: 3
• Compression: Approximately 125 PSI (All Cylinders)
• Shaft Length: 20 Inches (Long)
• Starting System: Manual/Electric (depending on factory configuration)
• Steering: Tiller Handle
• Trim System: Power Trim & Tilt
• Condition: Used – Runs Great
• Tested: Yes