
Suzuki DF175AP 175HP – Precision Control 20-Inch Shaft
The Suzuki DF175AP connects a 2867cc DOHC 16-valve powerhead with Suzuki Precision Control, built for remote drive-by-wire tournament bass boats on a 20-inch shaft. It spins a 2.50:1 gear ratio.
- 2867cc powerhead produces 175hp output
- Drive-by-wire controls deliver seamless gear engagement
- 44A alternator maintains continuous electrical output
- 20-inch shaft matches performance boat transoms
Precision Power Architecture
The big-block 2.9L engine technology utilizes a dual overhead cam design to maximize intake efficiency. This sophisticated architecture helps support consistent power delivery across the RPM band, providing the mechanical integrity needed for tournament-level fishing and high-speed coastal transit in marine offshore environments while maintaining peak thermal efficiency.
Sequential Fuel Induction
The Multi-Point Sequential fuel induction system monitors atmospheric variables to provide the appropriate combustion ratio. This EFI technology is designed to support instant starting and prevents engine bogging, completely eliminating carburetor-related maintenance while ensuring rapid acceleration and optimized fuel economy during long-range coastal trips in the North American maritime sector.
Hydrodynamic Shaft Performance
This outboard’s hole-shot performance is stabilized by a 20-inch hydrodynamic shaft designed for versatile boat heights. Its profile helps support consistent propeller grip in rolling swells, providing the captain with boat control during complex harbor maneuvers while utilizing dependable maritime propulsion units for high-speed offshore transits.
Integrated Charging Authority
Equipped with a robust 44 Amp alternator, the engine generates enough current to power modern fishfinders and radar. This electrical authority helps support your starting battery remains topped off during long excursions, providing the reliability required for multi-day offshore fishing trips and essential maritime communication safety during unexpected coastal transits.
Suzuki 175HP Warranty
This Suzuki 175HP is backed by a comprehensive 3-Year Limited Warranty for American boat owners. This factory-level protection covers structural and mechanical defects, ensuring access to genuine replacement parts and certified technicians through a vast nationwide dealer network, reflecting a deep commitment to long-term maritime reliability and support.
Vessel Match
This unit application is for fiberglass bay boats and mid-sized offshore skiffs requiring strong power. Its big-block torque and lightweight design make it perfectly suited for coastal tournament fishing or as a dependable primary power source for recreational vessels requiring sustained maritime authority in the open ocean.
Maintenance & Longevity
Maintaining clean oil in the 8.0-liter wet sump system is vital for preserving engine tolerances. Freshwater flushing after every mission prevents internal salt deposits and maintains the cooling system health in saltwater.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.
Product Specifications
SUZUKI DF175AP (20-Inch) Full Specs
| Engine type | Inline 4-Cylinder DOHC 16-Valve |
|---|---|
| Displacement | 2867 cc (175 cu in) |
| Bore x stroke | 97 x 97 mm (3.81 x 3.81 in) |
| Horsepower | 175hp @ 5800 RPM |
| Full-throttle rpm range | 5500 - 6100 RPM |
| Compression ratio | 10.2:1 |
| Fuel induction | Multi-Point Sequential Electronic Fuel Injection |
| Recommended fuel | 87 Octane / 10% Ethanol |
| Ignition | Fully-transistorized |
| Alternator output | 12V 44A |
| Gear ratio | 2.50:1 |
| Gear shift | Suzuki Precision Control (Electronic) |
| Shaft length | 20 inch |
| Dry weight | 518 lbs (235 kg) |
| Controls | Suzuki Precision Control (Drive-by-Wire) |
| Steering | Remote |
| Trim and tilt | Power Trim and Tilt |
| Exhaust | Through Propeller |
| Cooling system | Water Cooled w/ Thermostat |
| Lubrication | Wet Sump |
| Oil capacity | 8.5 Quarts (8.0 Liters) |
| Emissions rating | EPA 2013 / C.A.R.B. 3-Star |
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