Suzuki Marine 20 HP DF20AS2 EFI Outboard Motor

Description

The DF20AS2 incorporates technology that’s genuinely unique in its class. Suzuki’s engineers completely redesigned fuel injection system components — including the high-pressure fuel pump, fuel cooler, vapor separator, and injectors — to be smaller and lighter than any previous system, making battery-less EFI possible in this horsepower class . The system operates without battery power, delivering quicker easier starts, smoother running, and quick acceleration without the bulk and weight of a battery .

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 up to 17% better fuel economy over some competitor’s 4-strokes . This isn’t marketing language — it’s a measurable advantage for boaters facing rising fuel costs.

The DF20AS2 is the lightest outboard in its class at just 97 lbs (44 kg), making it noticeably easier to handle, transport, and mount than competitors . The engine 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 .

The 20 HP portable outboard segment is competitive, with strong offerings from Mercury 20 FourStroke, Yamaha F20, and Tohatsu MFS 20E. Here’s how the DF20AS2 compares on the specifications that matter:

The DF20AS2 is the lightest outboard in its class, making it noticeably easier to handle, transport, and mount than competitors . Its battery-less EFI system is a genuine industry first, eliminating battery maintenance and reducing overall system weight . The engine comes with start-in-gear lockout protection and emergency lanyard stop switch as standard safety features .

The DF20AS2 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 forward-mounted gear shift lever for easy operation, a twist-grip throttle with tension control, and shallow water drive capability for navigating shallows . The integrated carrying handle makes transport easier, and the emergency lanyard stop switch provides essential safety .

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.

• Suzuki DF20AS2 outboard motor (15″ shaft)

• 3.1 gallon fuel tank and fuel line 

• 3-blade aluminum propeller (9.25″ × 10″) 

• Tool kit 

• Owner’s manual 

• Suzuki 3-Year Manufacturer Warranty 

Complete your installation with these compatible components and services:

• Suzuki outboard motor propellers — 7″–11″ pitch options for optimal performance 

• Zinc anode kit for Suzuki DF20AS2 — 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 DF20AS2 propeller selection guide — match pitch to your boat and load

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SKU: SUZ-DF20AS2-15
MPN: DF20AS2
Brand: Suzuki Marine
Category: Outboard Motors > Portable (15–20 HP)