2018 Suzuki Marine 50 HP DF50AV Outboard Motor
$8,600.00
The 2018 Suzuki DF50AV is a purpose-built high-thrust outboard designed to move heavy boats with ease. Featuring Suzuki’s High Energy Rotation lower unit with a 2.42:1 gear ratio, this mid-range engine turns a larger 14-inch propeller — delivering a 42% increase in forward thrust and 136% increase in reverse compared to standard models . This makes the DF50AV the ideal choice for pontoon boats, heavy workboats, and large displacement craft across California and the United States.
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Description
The DF50AV is not simply a standard DF50A with different decals. Suzuki engineers equipped it with a lower unit derived from the DF140A, specially engineered with a large 2.42 gear ratio that turns a bigger 14-inch prop . This system delivers substantially more thrust than standard-geared outboards in the same horsepower class, giving you more precise control when maneuvering, superior low-speed handling, better hole shots, and plenty of power to move and maneuver with a heavy load .
The Lean Burn Fuel Control System monitors engine performance and operating conditions in real time to predict fuel needs, delivering a leaner air-fuel mixture for remarkable fuel efficiency from low speeds well into the cruising range . In-house testing shows significant improvements in fuel consumption at medium speeds compared to non-lean-burn equipped predecessors .
The engine also features a self-adjusting timing chain that runs in an oil bath with an automatic hydraulic tensioner — no periodic maintenance required . Suzuki’s Easy Start System keeps the starter engaged until the engine fires, and the Suzuki Troll Mode System (optional) allows precise RPM adjustment for trolling applications .
| Specification | Value |
|---|---|
| Model | Suzuki DF50AV |
| Year | 2018 |
| Engine Type | DOHC 12-Valve, In-line 3 |
| Displacement | 941 cc (57.4 in³) |
| Bore × Stroke | 72.5 mm × 76 mm (2.85 in × 2.99 in) |
| Maximum Output | 50 HP (36.8 kW) |
| Operating Range | 5,300–6,300 RPM |
| Fuel System | Multi-Point Sequential Electronic Fuel Injection |
| Starting System | Electric with Easy Start |
| Ignition System | Solid State Direct Ignition |
| Gear Ratio | 2.42:1 (High Energy Rotation) |
| Transom Height | 20 inches (L) |
| Weight | 253 lbs (115 kg) |
| Oil Capacity | 2.9 quarts (2.7 L) |
| Alternator Output | 12V 19A |
| Trim System | Power Trim & Tilt |
| Steering | Remote (Tiller Kit Optional) |
| Propeller Selection | 9″–17″ pitch, 14″ diameter high-thrust props |
| CARB Rating | 3-Star Ultra-Low Emission |
The 50 HP outboard segment includes both standard and high-thrust offerings. Here’s how the DF50AV compares to key competitors
| Feature | Suzuki DF50AV | Mercury 50 | Yamaha F50 | Honda BF50 |
|---|---|---|---|---|
| Displacement | 941 cc | 995 cc | 996 cc | 808 cc |
| Engine Type | DOHC 12V | SOHC 8V | SOHC 8V | SOHC 12V |
| Gear Ratio | 2.42:1 (High Thrust) | 2.07:1 | 2.00:1 | 2.08:1 |
| Propeller Size | 14″ diameter | 13″ max | 13″ max | 13″ max |
| Weight (L shaft) | 253 lbs | 247 lbs | 253 lbs | 214 lbs |
| Lean Burn | Yes | No | No | No |
| Timing Chain | Self-adjusting | Belt | Belt | Belt |
| Warranty | 5-Year | 3-Year | 3-Year | 3-Year |
The DF50AV’s 2.42:1 gear ratio and 14-inch propeller capability set it apart for heavy-boat applications. While the Honda BF50 is lighter, it lacks the high-thrust gearing and larger prop capacity that make the DF50AV superior for pontoons and workboats . The DOHC 12-valve architecture provides better breathing at high RPM than the SOHC designs used by Mercury and Yamaha .
The DF50AV is specifically engineered for applications where standard outboards struggle:
Pontoon boats — the high-thrust lower unit delivers superior control and maneuverability for these heavy, high-drag vessels
Workboats and commercial craft — 42% more forward thrust makes load-carrying easier
Heavy displacement hulls — reliable power for boats that need sustained thrust
Large aluminum fishing boats — enough power for fully loaded fishing setups
The engine is available with remote mechanical controls (standard) or an optional tiller kit for applications requiring direct steering .
All motors ship from our San Francisco, CA warehouse with fast nationwide shipping. California residents pay applicable sales tax; out-of-state buyers receive straightforward delivery to their doorstep.
2018 Suzuki DF50AV outboard motor (20″ shaft)
Remote control box and cables
Power Trim & Tilt system
3.1 gallon fuel tank
Fuel line
Aluminum propeller (sized to application)
Tool kit
Owner’s manual
Suzuki 3-Year Manufacturer Warranty
Complete your installation with these compatible components and services:
Suzuki high-thrust propellers — 14″ diameter, 9″–17″ pitch options for optimal performance
Zinc anode kit for Suzuki DF50AV — protect against saltwater corrosion
Suzuki outboard motor flusher — essential for post-saltwater flushing
Boatworld foldable outboard engine trolley — safe storage and transport
Outboard motor service kit — impeller, spark plugs, and fuel filters
Boatworld heavy duty outboard lock — security for your investment
Marine fuel stabilizer — protect your EFI system during storage
Suzuki DF50AV propeller selection guide — match pitch to your boat and load
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SKU: SUZ-DF50AV-2018-20
MPN: DF50AV
Brand: Suzuki Marine
Category: Outboard Motors > Mid-Range (40–90 HP) > High Thrust
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