Propulsion engine DF9.9B STEALTH

auxiliaryoutboardgasoline

Product overview
The DF9.9B STEALTH is a portable 9.9 HP four-stroke outboard designed for lightweight, battery-free operation. It integrates Suzuki battery-less Electronic Fuel Injection (EFI) and a Lean Burn system to improve fuel economy while providing reliable starts, responsive acceleration and smooth running for small craft and tenders.

Features

• Battery-less Electronic Fuel Injection — EFI system enabling operation without a battery in this horsepower class (Suzuki).
• Lean Burn system for optimized fuel consumption and continuous engine condition monitoring.
• SOHC 4-valve 4-stroke design delivering quick starts, strong acceleration and smooth operation.
• Electronic sensors provide real-time data on speed, acceleration and engine parameters for integration with central control systems.

Additional details

• Designed as a portable outboard suitable for small boats, dinghies and auxiliary propulsion where low weight is essential.
• Prioritizes fuel efficiency, usable torque and top speed without requiring battery weight.

Specifications
Model: DF9.9B STEALTH
Body Color: Matte Black
Recommended Transom Height (inches): L: 20" X: 25"
Starting System: Electric: L and X
Weight (LBS): Electric L: 108 X: 120
Engine Type: SOHC 4-Valve
Fuel Delivery System: Electronic Fuel Injection with Lean Burn (Suzuki EFI, battery-less)
No. Of Cylinders: 2
Piston Displacement inches (cc): 20.0 (327)
Bore x Stroke Inches (mm): 2.38 x 2.24 (60.4 x 57)
Maximum Output HP: 9.9
Operating Range (RPM): 4700 - 5700
Steering: Remote: L: Remote X: Remote
Choke: N/A - Suzuki EFI
Oil Pan Capacity quarts (liter): 1.06 (1.0)
Ignition System: Digital CDI
System Output: Electric 12V 12A
Trim Position: 5 Tilt Pin Positions and 2 Shallow Water Drive Settings / Optional Power Tilt model
Gear Ratio: 2.08:1
High Thrust Propeller: 4 x 10 x 5
Propeller Selection: 7 - 11

technical specifications

• Model: DF9.9B STEALTH
• Body Color: Matte Black
• Recommended Transom Height (inches): L: 20" X: 25"
• Starting System: Electric: L and X
• Weight (LBS): Electric L: 108 X: 120
• Engine Type: SOHC 4-Valve
• Fuel Delivery System: Electronic Fuel Injection with Lean Burn (Suzuki EFI, battery-less)
• No. Of Cylinders: 2
• Piston Displacement inches (cc): 20.0 (327)
• Bore x Stroke Inches (mm): 2.38 x 2.24 (60.4 x 57)
• Maximum Output HP: 9.9
• Operating Range (RPM): 4700 - 5700
• Steering: Remote: L: Remote X: Remote
• Choke: N/A - Suzuki EFI
• Oil Pan Capacity quarts (liter): 1.06 (1.0)
• Ignition System: Digital CDI
• System Output: Electric 12V 12A
• Trim Position: 5 Tilt Pin Positions and 2 Shallow Water Drive Settings / Optional Power Tilt model
• Gear Ratio: 2.08:1
• High Thrust Propeller: 4 x 10 x 5
• Propeller Selection: 7 - 11