uzuki Marine 20 HP DF20AS EFI Outboard Motor
$9,400.00
The 2018 Suzuki DF20AS is the world’s first 20 HP outboard motor designed with battery-less Electronic Fuel Injection and Suzuki’s Lean Burn Control System — a technological breakthrough that delivers easier starts, smoother acceleration, and superior fuel economy. This 2-cylinder, 327cc four-stroke portable outboard produces 20 HP at 5300–6300 RPM, making it an ideal choice for jon boats, skiffs, inflatables, and auxiliary sailboat power across California and the United States.
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Description
The Lean Burn Control System continuously monitors engine performance and operating conditions to predict fuel needs and deliver a leaner fuel-air mixture, resulting in remarkable fuel savings across the entire operating range. This isn’t marketing language — it’s a measurable advantage for boaters facing rising fuel costs.
The DF20AS also features decompression release for easy starts, a fresh water flushing port for simplified maintenance, and multi-layer corrosion protection designed specifically for saltwater environments.
| Specification | Value |
|---|---|
| Model | Suzuki DF20AS |
| Year | 2018 |
| Engine Type | 4-Stroke SOHC 4-Valve, In-line 2 |
| Displacement | 327 cc (20.0 in³) |
| Bore × Stroke | 60.4 mm × 57 mm |
| Maximum Output | 20 HP (14.7 kW) |
| Operating Range | 5300–6300 RPM |
| Fuel System | Battery-Less Electronic Fuel Injection |
| Starting System | Manual (Recoil) |
| Ignition System | Digital CDI |
| Gear Ratio | 2.08:1 |
| Transom Height | 15 inches (Short) |
| Weight | 97 lbs (44 kg) |
| Oil Capacity | 33.8 fl oz (1.0 L) |
| Alternator Output | 12V 80W 6A (Optional) |
| Trim System | Manual Trim & Tilt (5 positions) |
| Steering | Tiller |
| Propeller | 3-Blade Aluminum 9.25″ × 10″ Pitch |
| Fuel Tank | 3.1 US Gallon External |
| CARB Rating | 3-Star Ultra-Low Emission |
The 20 HP portable outboard segment is competitive, with strong offerings from Mercury 20 FourStroke, Yamaha F20, and Honda BF20. Here’s how the DF20AS compares on the specifications that matter:
| Feature | Suzuki DF20AS | Mercury 20 | Yamaha F20 | Honda BF20 |
|---|---|---|---|---|
| Displacement | 327 cc | 333 cc | 362 cc | 350 cc |
| Fuel System | Battery-Less EFI | EFI | EFI | EFI |
| Weight (S shaft) | 97 lbs | 99 lbs | 108 lbs | 104 lbs |
| Lean Burn | Yes | No | No | No |
| Freshwater Flush Port | Yes | No | No | No |
| Warranty | 5-Year | 3-Year | 3-Year | 3-Year |
The DF20AS’s battery-less EFI system is a genuine industry first — no battery is required for fuel injection operation, reducing weight and eliminating battery maintenance. Combined with Suzuki’s 5-year manufacturer warranty, the DF20AS represents exceptional long-term value.
The DF20AS is well-suited to a wide range of American boating applications:
Jon boats and skiffs — lightweight design and reliable power for fishing
Inflatables and tenders — portable enough for easy transport and storage
Sailboat auxiliary power — dependable thrust for docking and maneuvering
Small aluminum boats — excellent power-to-weight ratio for planing
The engine features a front-mounted gear shift lever for easy operation, a twist-grip throttle with tension control, and shallow water drive capability for navigating shallows.
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 DF20AS outboard motor (15″ shaft)
3.1 gallon fuel tank
Fuel line
3-blade aluminum propeller
Tool kit
Owner’s manual
Suzuki 5-Year Manufacturer Warranty
Complete your installation with these compatible components and services:
Suzuki outboard motor propellers — 9.25″ diameter options for optimal performance
Zinc anode kit for Suzuki DF20AS — 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 DF20AS propeller selection guide — match pitch to your boat and load
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SKU: SUZ-DF20AS-2018-15
MPN: DF20AS
Brand: Suzuki Marine
Category: Outboard Motors > Portable (15–20 HP)
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