2018 Suzuki Marine 9.9 HP DF9.9BTX EFI Outboard Motor
$8,500.00
The 2018 Suzuki DF9.9BTX is the world’s first 9.9 HP outboard motor designed with Lean Burn and Battery-Less Electronic Fuel Injection — a technological breakthrough that delivers quicker starts, smoother acceleration, and superior fuel economy . This 2-cylinder, 327cc four-stroke outboard produces 9.9 HP at 4,700–5,700 RPM, configured with a 25-inch extra-long shaft, electric start, and power tilt — making it the ideal choice for sailboats, heavy dinghies, and high-transom applications across California and the United States .
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Description
The DF9.9BTX incorporates technology that’s genuinely unique in its class. Suzuki’s engineers completely redesigned fuel injection system components to be smaller and lighter than any previous system, making battery-less EFI possible in this horsepower class . The result is quicker, easier starts without the bulk and weight of a battery.
The Lean Burn Control System monitors engine performance and operating conditions in real time to predict fuel needs, delivering a leaner air-fuel mixture for remarkable fuel economy across the entire operating range . This isn’t marketing language — it’s a measurable advantage for boaters facing rising fuel costs.
The DF9.9BTX also features Suzuki’s Anti-Corrosion System with multi-layer protection designed specifically for saltwater environments. A fresh water flushing port simplifies maintenance, and the engine features 5 trim positions with tilt lock pin plus 2 shallow water drive settings for navigating shallows .
The electric start system eliminates the effort of manual recoil starting, while power tilt makes raising and lowering the motor effortless — particularly valuable for sailboat auxiliary applications .
| Specification | Value |
|---|---|
| Model | Suzuki DF9.9BTX |
| Year | 2018 |
| Engine Type | SOHC 4-Valve, In-line 2 |
| Displacement | 327 cc (20.0 in³) |
| Bore × Stroke | 60.4 mm × 57 mm (2.38 in × 2.24 in) |
| Maximum Output | 9.9 HP (7.3 kW) |
| Operating Range | 4,700–5,700 RPM |
| Fuel System | Battery-Less Electronic Fuel Injection with Lean Burn |
| Starting System | Electric |
| Ignition System | Digital CDI |
| Gear Ratio | 2.08:1 |
| Transom Height | 25 inches (Extra Long) |
| Weight | 125 lbs (56.7 kg) |
| Oil Capacity | 1.0 L (1.06 quarts) |
| Alternator Output | 12V 12A |
| Trim System | Power Tilt |
| Steering | Remote |
| Propeller | 4-Blade High Thrust 10″ × 5″ |
| Propeller Selection | 7″–12″ pitch range |
| Fuel Tank | 3.1 US Gallon External |
| CARB Rating | 3-Star Ultra-Low Emission |
The 9.9 HP portable outboard segment is competitive, with strong offerings from Mercury 9.9 FourStroke, Yamaha F9.9, and Honda BF9.9. Here’s how the DF9.9BTX compares on the specifications that matter:
| Feature | Suzuki DF9.9BTX | Mercury 9.9 | Yamaha F9.9 | Honda BF9.9 |
|---|---|---|---|---|
| Displacement | 327 cc | 333 cc | 212 cc | 222 cc |
| Fuel System | Battery-Less EFI | EFI | EFI | EFI |
| Weight (X shaft) | 125 lbs | 121 lbs | 122 lbs | 118 lbs |
| Lean Burn | Yes | No | No | No |
| Electric Start | Yes | Yes | Yes | Yes |
| Power Tilt | Yes | Optional | Optional | Optional |
| High Thrust Prop | Standard | Optional | Optional | Optional |
| Warranty | 5-Year | 3-Year | 3-Year | 3-Year |
The DF9.9BTX delivers Suzuki’s industry-leading 5-year manufacturer warranty and comes standard with a 4-blade high-thrust propeller — an essential feature for sailboat auxiliary applications where maximum thrust at low RPM is critical . Its battery-less EFI system and thru-cowling manual back-up starting are genuine practical advantages.
The DF9.9BTX is specifically configured for applications requiring extra-long shaft and remote operation:
Sailboat auxiliary power — the 25″ shaft and high-thrust propeller are ideal for displacement hulls
High-transom boats — the extra-long shaft fits vessels where a 20″ shaft would be too short
Heavy dinghies and tenders — electric start and power tilt simplify operation
Workboats — reliable auxiliary power for commercial applications
The engine features remote mechanical controls for convenient operation from the helm. The power tilt system makes raising the motor for trailering or shallow-water operation effortless .
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 DF9.9BTX outboard motor (25″ shaft)
Remote control box and cables
Power Tilt system
3.1 gallon fuel tank
Fuel line
4-blade high thrust propeller (10″ × 5″)
Tool kit
Owner’s manual
Suzuki 5-Year Manufacturer Warranty
Complete your installation with these compatible components and services:
Suzuki outboard motor propellers — 7″–12″ pitch options for optimal performance
Zinc anode kit for Suzuki DF9.9BTX — 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 DF9.9BTX propeller selection guide — match pitch to your boat and load
Ignition coil 33410-89L10 — OEM replacement for DF9.9BTX
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SKU: SUZ-DF9.9BTX-2018-25
MPN: DF9.9BTX
Brand: Suzuki Marine
Category: Outboard Motors > Portable (8–9.9 HP) > High Thrust
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