SUZUKI 350 HP DF350ATXXW2 OUTBOARD MOTOR

Description

This page is for the Suzuki DF350ATXXW2 outboard motor, sold new by us with worldwide delivery. You are looking at Suzuki’s 350 HP V6 dual prop four stroke: 30 inch shaft, power trim and tilt, electric start and remote steering, in Cool White. If you run an offshore centre console, a big bay boat or a heavy cabin boat, this is the class of motor most owners end up choosing.

We sell new outboards to private owners, fishing operators, boat builders and dealers, and we ship worldwide. Tell us where your boat is and we send you a delivery quote before you commit to anything. Many repeat customers come back for a second Suzuki DF350ATXXW2 outboard motor on another boat.

We put everything on this one page: specifications, the model code, boats it suits, how it runs, rigging, care, shipping and an FAQ at the end. Read what you need and skip the rest.

Suzuki DF350ATXXW2 outboard motor: Specifications

Numbers can move a little between production runs, so the paperwork in the crate is the final word. Suzuki keeps the current figures on its DF350A page on Suzuki Marine if you want to compare models side by side.

What the Model Code on the Suzuki DF350ATXXW2 outboard motor Means

Suzuki model codes look confusing until someone explains them once. DF is Suzuki’s four stroke prefix and 350 is the horsepower. The A marks the A generation of this engine. T means power trim and tilt. XX is the ultra long shaft, for a 30 inch transom. W means the cowl is Cool White instead of black. The 2 at the end is the series number in Suzuki’s order code.

Why the Suzuki DF350ATXXW2 outboard motor Uses Two Propellers

Most outboards turn one propeller. The DF350A turns two, one behind the other, spinning in opposite directions. Suzuki went this way because 350 horsepower needs big, strong gears, and big gears mean a fat gearcase that drags through the water. Splitting the load across two props cuts the torque each one has to carry, so the gears can be smaller and the gearcase slimmer.

On the water you feel it as grip. The boat hooks up out of the hole, holds a line in turns and backs down straight without walking sideways. Skippers coming off big single prop engines usually notice the reverse first. Docking a heavy boat gets a lot less dramatic. The Suzuki DF350ATXXW2 outboard motor is covered here too.

The powerhead is a 4.4 litre V6 with a 12.0 to 1 compression ratio, which is high for an outboard. Suzuki makes that work with a direct air intake that feeds cool outside air to the engine, dual injectors per cylinder and a knock sensor that watches combustion. The result is a lot of power from a block that is still compact enough to hang in pairs, threes and fours on big centre consoles.

Suzuki Precision Control on the Suzuki DF350ATXXW2 outboard motor

This motor uses drive by wire controls. There are no throttle or shift cables. Instead the helm sends an electronic signal to the engine, which gives very smooth shifts and quick, precise throttle response. It also makes multi engine rigs much easier to sync, and it opens the door to options like Suzuki Troll Mode and keyless start. You will need Suzuki digital controls and harnesses to rig it. We can quote those with the motor if you ask.

Boats That Suit the Suzuki DF350ATXXW2 outboard motor

Big offshore centre consoles

Twin and triple DF350A rigs are common on 30 to 40 foot centre consoles. With the right props these boats cruise in the high 30s and 40s with a full crew and gear.

Sport fishing and dual consoles

Heavier dual console and express boats use the extra torque to stay on plane at lower revs, which saves fuel on long runs.

Commercial and government boats

Patrol, rescue and pilot boats like the Suzuki DF350ATXXW2 outboard motor because the dual prop holds in rough water and the V6 is built for long hours.

Repowers from older big two strokes

Owners replacing pairs of old 250 or 300 two strokes often step up to 350s and get better fuel use, cleaner running and much quieter trips.

How the Suzuki DF350ATXXW2 outboard motor Feels on the Water

At idle the Suzuki DF350ATXXW2 outboard motor is quieter than people expect from 350 horses. Shifting is done electronically through Suzuki Precision Control, so there is no clunk, just a soft engagement.

When you push the lever the boat climbs onto plane flat and fast. The dual props keep their bite in rough water too, which is a big deal offshore when the stern lifts on a wave and a single prop would blow out. Once you settle into cruise, Lean Burn trims the fuel mixture back and the motor runs easy. That is a big part of why people choose the Suzuki DF350ATXXW2 outboard motor.

Single or Twin Installs

Because the dual props already turn in opposite directions, the Suzuki DF350ATXXW2 outboard motor does not need a separate counter rotating version for twin rigs. The same motor goes on both sides. That keeps twin, triple and quad rigs simple and means one spare covers every position.

For multi engine boats, tell us how many motors you need and we will match serial numbers, shaft lengths and colours so the rig looks and runs as one.

Colour and Finish

This is the white version. Cool White looks clean on white hulls and stays cooler in the sun. Owners with white boats often say the motor just looks like it belongs. Under the paint it is identical to the black model. Owners of the Suzuki DF350ATXXW2 outboard motor tell us the same thing again and again.

Rigging the Suzuki DF350ATXXW2 outboard motor

This is a drive by wire motor, so there are no throttle or shift cables. You will need Suzuki digital remote controls, the engine and helm harnesses, a compatible gauge, a steering system rated for the horsepower (hydraulic is normal at this size), a good marine battery and a fuel system with a water separating filter.

Mount the motor so the anti-ventilation plate sits roughly level with the bottom of the hull, then fine tune after a test run. If the prop blows out in turns, drop it a hole. If there is a lot of spray and drag, raise it. The 12 V, 54 amp alternator keeps electronics charged on a normal day.

Transom Height and Shaft Length

The 30 inch ultra long shaft is for big offshore boats with tall transoms or setback brackets. It keeps the prop deep in the water when the stern lifts in a sea. Measure from the top of the transom or bracket to the bottom of the hull before ordering. If you measure close to 25 inches, you want the X shaft instead. It is one of the reasons we keep the Suzuki DF350ATXXW2 outboard motor in stock.

Suzuki DF350ATXXW2 outboard motor or the DF300AP?

The DF300AP is the step down. It uses a 4.0 litre V6, a single prop and Suzuki Selective Rotation. It is lighter and simpler to prop, and it suits a lot of 25 to 30 foot boats very well.

The Suzuki DF350ATXXW2 outboard motor makes sense when the boat is heavy, when you run triples or quads, or when you want the dual prop grip in rough water. If you are not sure which way to go, send us the boat, the load you carry and the speeds you want and we will tell you straight.

Who Buys the Suzuki DF350ATXXW2 outboard motor From Us

Most of our buyers are owners who want a reliable motor and a fair price without dealer games. Next come fishing and charter operators repowering a working boat, and then boat builders and dealers who need stock to rig new hulls. The feedback after a season is nearly always the same: it starts every time, it is easy on fuel compared with what they had, and it has needed nothing beyond normal servicing.

Day to Day Ownership

Good outboards fade into the background. You stop thinking about the engine and think about the fishing or the family instead. The Suzuki DF350ATXXW2 outboard motor starts on the first turn, idles cleanly with no choke and does not foul plugs after a slow morning. Keep up with flushing and servicing and it will keep doing that for years.

The First Ten Hours

New motors need a gentle start. For the first hour keep the Suzuki DF350ATXXW2 outboard motor below half throttle and keep changing speed. After that you can use more throttle in short bursts. Avoid long runs at wide open throttle until the break-in period in the manual is done.

Book the first service on time. Fresh engine oil, a new filter and fresh gear oil set the motor up for the long run.

Keeping the Suzuki DF350ATXXW2 outboard motor Healthy

Nothing about this motor needs special tools for routine care. Stick to a simple routine:

• After every trip: flush, rinse and check the tell-tale stream.
• Every month in use: look at the anodes, the prop and the fuel filter bowl.
• Every 100 hours or yearly: engine oil, oil filter, gear oil and a grease of every fitting.
• Every two years or so: water pump impeller and thermostat check.
• At the major service: plugs, fuel filters and a check of the trim system.

The timing chain runs in oil and does not need replacing like a belt. That is one less big bill to plan for. You get all of that with the Suzuki DF350ATXXW2 outboard motor.

Matching the Motor to the Boat

The right motor is the one your boat is rated for, carrying the load you normally carry. Check the capacity plate for maximum horsepower and engine weight, then think about how you use the boat. Heavy loads, rough water and long runs all favour running close to the maximum rating. Light boats and calm water give you more freedom. If the numbers do not line up with 350 HP, ask us and we will point you to a better match.

What It Costs to Run

Lean Burn control and the high compression ratio help the Suzuki DF350ATXXW2 outboard motor cruise efficiently for its size. Real burn depends on hull, load, props and how hard you run, so we do not quote invented numbers.

Servicing is not expensive either. Suzuki parts are widely stocked, and most routine jobs on the Suzuki DF350ATXXW2 outboard motor can be done by any decent marine mechanic or by a handy owner.

Keep the Fuel Clean

Most problems people blame on the engine start in the tank. Water, old fuel and dirt in the lines will make any motor run badly. Change the water separating filter every season, drain the bowl if you see water and use fresh fuel. In hot, humid places keep the tank as full as you can when the boat is parked, so there is less room for condensation. Ask us if you want photos of the Suzuki DF350ATXXW2 outboard motor before it ships.

Treat the fuel well and fuel injection rewards you with easy starts and smooth running.

Choosing a Propeller for the Suzuki DF350ATXXW2 outboard motor

The right prop lets the motor reach its full throttle range of 5,700 to 6,300 rpm with your normal load aboard. If it over revs, go up in pitch. If it cannot get into the range, come down. Suzuki lists a Suzuki contra rotating dual propeller set for this motor.

Suzuki’s own props are a good match, and the Suzuki genuine parts and accessories range also covers filters, anodes and service kits. Or tell us your boat and load and we will suggest a starting prop. We are happy to answer questions about the Suzuki DF350ATXXW2 outboard motor by email or chat.

Low Speed and Trolling

Four strokes are much better at low speed than old two strokes. They idle cleanly, do not load up with oil and do not foul plugs after an hour of trolling. If you troll a lot, ask about Suzuki Troll Mode, which lets you set trolling speed in small steps with a switch. Drift socks and a trolling plate are also cheap ways to slow a boat down further.

Instruments for the Suzuki DF350ATXXW2 outboard motor

Suzuki’s digital gauges read engine data straight from the motor, including fuel flow and service reminders. If you prefer, plain analogue tach and trim gauges work too. Whatever you fit, run tidy wiring with proper fuses. Good wiring now saves a lot of headaches later.

Batteries and Wiring

Use a marine starting battery with good cranking amps, keep the terminals clean and tight and fit a battery switch. If you run lots of electronics, a second house battery with a charging relay keeps the starting battery fresh. Corrosion on terminals and loose earth wires cause more no-start calls than anything inside the engine. The Suzuki DF350ATXXW2 outboard motor handles this well.

Looking After It in Salt Water

Fresh water flushing after every trip is the most important habit you can have. Use the flush port with a garden hose, rinse the outside and check the anodes regularly. On a mooring, keep the motor tilted up between trips so the gearcase is not sitting in the water.

Running in Tropical or Cold Water

Tropical boaters should check the impeller more often and keep an eye on the cooling stream, because warm water with sand or silt wears pumps faster. In cold regions the Suzuki DF350ATXXW2 outboard motor starts easily with its fuel injection, but always store it upright and drained before freezing weather.

Trailering and Launching

If the boat lives on a trailer, tilt the motor up for the road and fit a transom saver or motor support so the bumps are not taken by the tilt system. Check the skeg clears the road on steep driveways. At the ramp, lower the motor fully before you start it, and never run it out of the water. A quick look at the cooling stream once it is running costs nothing and saves a lot. This is where the Suzuki DF350ATXXW2 outboard motor earns its keep.

After a salt launch, rinse the trailer and the motor together and run the flush. It takes ten minutes and adds years.

Storage Between Trips

After the last run of the day, flush the motor and let it drain in the down position, then tilt it up. If it will sit for weeks, disconnect the battery or put it on a maintainer. For long storage, stabilise the fuel, change the oil, grease the steering and tilt points and fit a cover. Plenty of buyers send us their boat details before ordering the Suzuki DF350ATXXW2 outboard motor, and we like that.

Common Problems and Quick Checks

Will not crank. Check the kill switch lanyard is clipped on, the lever is in neutral and the battery terminals are clean and tight.

Cranks but will not start. Squeeze the primer bulb until it is firm, open the tank vent and drain any water from the separator bowl. Keep that in mind when you set up the Suzuki DF350ATXXW2 outboard motor.

Weak tell-tale stream. Clear the outlet with a bit of wire. If it is still weak, have the impeller checked before running hard.

Will not reach full revs. Usually the wrong prop or the motor mounted too low. Check the prop first. That applies to the Suzuki DF350ATXXW2 outboard motor as much as any motor.

Warning buzzer. Slow down straight away, check the cooling stream and oil, and do not keep running with an alarm.

Carry These on Board

A spare kill cord, a spare prop with nut and washer, a fuel filter, a couple of spanners, a radio and a torch. Add a tow line and an anchor that holds. It sounds basic, but most bad days on the water start with something small. If you are unsure, send us a photo of the transom and we will check the Suzuki DF350ATXXW2 outboard motor is the right fit.

Repowering an Older Boat

If you are swapping out an old motor, check the transom core around the bolt holes once it is off. Soft or wet wood has to be fixed before you hang a new engine on it. Look at the steering too. Weeping hydraulic rams and stiff cables should be replaced now, not after the first trip.

On the first run, watch the tell-tale, listen for anything odd and see how the boat sits. Adjust trim and mounting height until it runs level and the prop holds in turns. Many repeat customers come back for a second Suzuki DF350ATXXW2 outboard motor on another boat.

Coming From an Old Two Stroke

A lot of our buyers are replacing a two stroke that has done its time. The difference is bigger than most expect. No oil to mix or top up, no blue smoke at the dock, far less noise and a big drop in fuel use at cruise. The four stroke is heavier than an old two stroke of the same power, so check the capacity plate and how the boat sits once it is fitted. Most owners find the trade is well worth it after the first few trips.

Expect a different sound too. A four stroke is quieter and smoother, and some people keep looking back to check it is still running. The Suzuki DF350ATXXW2 outboard motor is covered here too.

Avoid These Common Errors

Ordering the wrong shaft length, guessing the prop, reusing worn out controls and going over the boat’s power or weight rating. Those four mistakes cause most of the post purchase headaches we hear about. All of them are avoided with a tape measure, a look at the capacity plate and a short chat with us before you pay.

The First Year of Ownership

Year one is easy. Follow the break-in, get the first service done on time and keep a log of hours. Look at the prop and anodes now and then, and flush after every salt trip. Before winter or a long break, do a proper lay up. If you do those simple things, the motor will reward you with years of trouble free running.

How Delivery Works

We ship worldwide. Once you confirm the order, the Suzuki DF350ATXXW2 outboard motor is strapped to a pallet in its original crate and booked with a freight company we trust, or with your own forwarder. You get the paperwork your customs office asks for and a tracking number so you can follow it.

About the Warranty

Suzuki warranty terms vary by country and by recreational or commercial use. We will tell you what applies where you are. Whatever the terms, keep the paperwork and a simple service log. It makes any claim much easier.

What Comes in the Crate

• DF350ATXXW2 powerhead, midsection and gearcase
• Owner’s manual and warranty paperwork
• Standard Suzuki fittings from the factory

Controls, gauges, harnesses, propeller and steering depend on what we have in stock and are not always included. Ask before you order and we will tell you exactly what ships with your motor.

Before You Order the Suzuki DF350ATXXW2 outboard motor

• Measure your transom height to confirm the 30 inch shaft is right.
• Check your boat’s maximum rated horsepower and engine weight.
• Decide on rotation if you run more than one motor.
• Work out what controls, steering and gauges you need.
• Tell us your country so we can quote shipping.

If anything is unclear, ask. Ten minutes of questions now saves a lot of trouble once the crate lands.

Buying the Suzuki DF350ATXXW2 outboard motor From Us

Every motor we sell is new and the price is on this page. Before we ship, we give you a delivery quote for your country so you know the full cost. When you order we confirm stock, the exact model code and shaft length with you. Our refund and return policy and terms and conditions are on the site. You can read what other buyers say on our reviews page, learn more about us page, or go straight to the contact page.

Other Suzuki Motors to Compare

• All 350 HP Suzuki outboards
• Suzuki DF350ATX2, 25 inch shaft
• Suzuki DF350ATXW2, 25 inch shaft, white
• Suzuki DF350ATXX2, 30 inch shaft
• Suzuki DF350ATXXW2 for sale (main listing)
• Suzuki 300 HP outboards
• Suzuki 250 HP outboards
• All Suzuki outboards
• The full shop

Our blog has more on rigging and looking after outboards. Suzuki’s global site at globalsuzuki.com also shows the full worldwide marine line.

FAQ: Suzuki DF350ATXXW2 outboard motor

Is the Suzuki DF350ATXXW2 outboard motor new?

Yes. New, in the factory crate, with Suzuki paperwork.

What shaft length is the Suzuki DF350ATXXW2 outboard motor?

30 inch, the XX shaft.

Is it standard or counter rotation?

Contra rotating dual propellers.

How heavy is the Suzuki DF350ATXXW2 outboard motor?

About 747 lb (339 kg).

What displacement is it?

4,390 cc (267.9 cu in), v6 (55 degree), dohc, 24 valves.

What controls does it use?

Drive by wire, Suzuki Precision Control.

What is the full throttle range?

5,700 to 6,300 rpm. Choose a prop that lands you in that range with a normal load.

Do you ship the Suzuki DF350ATXXW2 outboard motor to my country?

We ship worldwide. Send us your location and we will quote delivery.

Ready When You Are

The Suzuki DF350ATXXW2 outboard motor is in stock and ready to ship. If you are still deciding, send us your boat and how you use it. We would rather spend a few minutes getting it right than sell you the wrong motor.