Suzuki 25 HP DF25ATHSW5 Outboard Motor

Description

We have the Suzuki DF25ATHSW5 for sale brand new, still in the factory crate, at the price shown on this page. It is the 25 HP three cylinder Suzuki with a tiller handle, a 15 inch short shaft, power trim and tilt, electric start with a pull cord backup, and the white Cool Test Gray paint.

We ship it worldwide. You get a written delivery quote before you pay anything, and we answer questions about fit and rigging before the order, not after. If you run a small aluminium boat, a skiff or a rigid inflatable from the back seat, this is the motor most people end up asking about.

What the Suzuki DF25ATHSW5 for sale model code tells you

Suzuki model codes look like alphabet soup, but every letter means something. Read it left to right and you know exactly what is coming in the crate before you open it. Here is how the Suzuki DF25ATHSW5 for sale on this page breaks down.

• DF: Suzuki four stroke outboard.
• 25: 25 horsepower at the prop shaft rating.
• A: the current DF25A generation, the three cylinder fuel injected motor that replaced the older carbureted twin.
• T: power trim and tilt, run from a switch.
• H: tiller handle steering.
• S: short shaft, for a 15 inch transom.
• W: white finish, which Suzuki calls Cool Test Gray.
• 5: the catalogue suffix used for this listing. It does not change the powerhead or the specs.

So the Suzuki DF25ATHSW5 for sale here is the same DF25A powerhead as the grey DF25ATHS, dressed in white. Same weight, same lower unit, same tiller. Customers pick the white one to match a white hull or a white console boat, and in hot sun it does look cleaner on a light coloured transom.

Who buys a 25 HP tiller with power trim

Most buyers of the Suzuki DF25ATHSW5 for sale are running boats between 12 and 16 feet with a 15 inch transom. Think flat bottom jon boats, small V hull aluminium boats, rigid inflatables in the 3.8 to 4.5 metre range, and work skiffs used for nets, traps or ferrying people to a mooring.

The power trim is the reason people pay more for this model over the manual tilt DF25AS. Tilting a 25 HP motor by hand is fine for a young guy on a calm day. It is not fine when you are alone, beaching in a swell, or getting older. With the Suzuki DF25ATHSW5 for sale you press a button on the tiller and the motor comes up.

It also lets you trim while running. On a light boat with two people up front, a little trim out lifts the bow and adds speed. With a heavy load, trim in and the boat planes faster. A manual tilt pin can’t do that on the move.

Boats that are a poor match

We would not put the Suzuki DF25ATHSW5 for sale on a boat with a 20 inch transom. The cavitation plate will sit too high and the prop will ventilate in turns. Measure first. We also steer people away from tiller steering on boats over about 16 feet, because you end up sitting at the very back and the bow rides high. For those boats, look at a remote steer model.

Suzuki DF25ATHSW5 for sale: full specifications

These are the figures for the DF25A family as published by Suzuki and its dealers. Weight is approximate because it changes slightly with prop and fluids.

If any number in that table matters for your boat’s capacity plate or a survey, ask us and we will check it against the owner’s manual that ships with the Suzuki DF25ATHSW5 for sale.

Features that matter on this motor

Three cylinders in a 25 HP

Most 25s on the market are twins. The DF25A has three cylinders. In practice that means less shake at idle and at trolling speed, and a smoother pull out of the hole. You feel it through the tiller. After an hour of running, your hand is not numb.

It is one of the first things customers comment on after their first trip with the Suzuki DF25ATHSW5 for sale. The motor sounds more like a sewing machine than a lawnmower.

Battery-less fuel injection

The DF25A runs fuel injection that does not need a battery to keep running. The flywheel charging system powers the injection. On this electric start version you still carry a battery to crank it, but if the battery goes flat on the water, you pull the cord and the injection fires up anyway.

That matters a lot. A carbureted motor with a dead battery is a pain. The Suzuki DF25ATHSW5 for sale just needs a few good pulls and it is running, with correct fuel mapping from the first turn.

Lean burn control

Suzuki’s lean burn system reads engine load and leans the mixture at cruise. You notice it in fuel bills. On a 14 foot aluminium boat with two people, owners report the Suzuki DF25ATHSW5 for sale using noticeably less fuel at mid throttle than the old carbureted 25 they traded in. Actual numbers depend on hull, load and prop, so we don’t promise a figure.

Tiller handle layout

The tiller holds the shift lever, throttle grip with friction adjust, stop switch with lanyard, and the power trim switch. Start button and choke are on the front of the cowl. Everything is within reach from the back seat, which is the whole point of a tiller motor.

Shallow water and tilt positions

With power trim, you can tilt the lower unit up partway and keep running slowly over flats or a sandbar. Keep the water pump pickup under water and go easy. The Suzuki DF25ATHSW5 for sale also has a manual tilt release in case the trim motor fails, so you are never stuck with the leg down.

Suzuki publishes the full DF25A range data on its official outboard pages if you want to compare tiller and remote versions side by side.

Rigging the Suzuki DF25ATHSW5 for sale: what else you need

A tiller motor is the simplest to rig. There are no cables or remote boxes. Still, you need a few things before the first launch.

• Battery: a 12V marine starting battery, around 400 to 500 CCA is plenty. Mount it in a box and strap it down.
• Battery cables: the motor comes with a cable set to the battery. Check length on your boat before you cut anything.
• Fuel tank and line: a portable tank and line with the Suzuki fitting. Keep the line short and without kinks.
• Prop: the stock aluminium prop suits most light boats. Heavy work boats often need lower pitch.
• Transom bolts: clamp screws hold it, but we always bolt a 25 HP through the transom as well.

Mounting height is the big one. With the motor on the transom and the boat level, the anti ventilation plate should sit about level with the bottom of the hull, or up to an inch above it on many boats. Too low and you drag. Too high and the Suzuki DF25ATHSW5 for sale will ventilate and over rev.

Prop selection

Your goal is to reach between 5,000 and 6,000 rpm at full throttle with a normal load. If you top out below 5,000, drop pitch. If you hit the rev limiter, go up. Most of our customers with light jon boats stay on the factory prop. Work skiffs that carry gear often go down two inches of pitch. You can find genuine props through Suzuki genuine parts and accessories.

Fitting it to a rigid inflatable

RIB owners make up a good share of the people asking about the Suzuki DF25ATHSW5 for sale. Most 3.8 to 4.5 metre RIBs have a short transom and are rated around 25 to 30 HP, so the fit is natural. Check the transom pad thickness, since some RIB transoms are thin and need a backing plate under the clamp screws.

The white cowl on the Suzuki DF25ATHSW5 for sale also suits grey or white tubes. On a RIB, the power trim earns its keep at the beach. You tilt up before the tubes touch sand, step out and drag the boat in. Tender users who launch from a larger yacht like the electric start too, since they don’t have to stand and pull in a rolling dinghy. If the yacht has a davit, check its weight limit against the Suzuki DF25ATHSW5 for sale plus fuel before you order.

How to measure your transom for the Suzuki DF25ATHSW5 for sale

Measure from the top of the transom where the clamp brackets sit, straight down the centre line to the bottom of the hull. Use a straight edge under the hull if it has a keel or a V. Do not measure along the slope of the transom.

• About 15 inches: short shaft. This model.
• About 20 inches: long shaft. Look at the DF25ATHLW5 instead.
• Between 16 and 18 inches: call us. A jack plate or transom work may be needed.

We get this wrong order more than any other, and it is easy to avoid. Send us a photo of your tape on the transom and we will confirm whether the Suzuki DF25ATHSW5 for sale is right before you pay.

Break-in for a new Suzuki 25

Suzuki gives a break-in period of about 10 hours in the owner’s manual. Follow it. Here is the version we tell customers when they pick up the Suzuki DF25ATHSW5 for sale.

1. First 2 hours: run mostly at low to medium throttle, up to roughly half. Short bursts above that are fine. Don’t hold full throttle.
2. Next hour: up to about three quarters throttle, still changing speed every few minutes.
3. Remaining hours: full throttle in short bursts, then back off. Vary the rpm.
4. Check the tell tale water stream every time you start.

After break-in, do the first service. Change the oil and filter and the gear oil. Metal flakes in the first gear oil change are normal in small amounts.

Maintenance schedule

Suzuki’s manual lists everything in detail. This is the short version for normal recreational use of the Suzuki DF25ATHSW5 for sale.

On the Suzuki DF25ATHSW5 for sale, use Suzuki 10W-40 four stroke oil or a good marine equivalent. Grease the swivel bracket and tilt tube fittings every season. The power trim on the Suzuki DF25ATHSW5 for sale has its own fluid reservoir, so check it if the motor starts creeping down while trailering.

Salt water care

A lot of these motors live in salt water, and they handle it well if you do the basics. Flush after every trip with a flush muff or the flush port. Run it until the thermostat opens and the water comes out warm.

• Tilt the motor up when moored so the lower unit is out of the water.
• Rinse the outside, especially around the trim unit and clamp brackets.
• Check the sacrificial anodes. Replace them when about half gone. Never paint them.
• Spray a corrosion protector under the cowl once a month.
• Touch up chipped paint on the lower unit before it bubbles.

The white paint on the Suzuki DF25ATHSW5 for sale shows salt stains and exhaust soot more than grey does, so a quick wipe after each trip keeps it looking new.

Common problems and simple fixes

Most service calls on a DF25A are not real faults. They are setup or fuel issues. These are the ones we hear about.

Hard starting after storage

On a Suzuki DF25ATHSW5 for sale that sat all winter, it is usually old fuel. Ethanol fuel goes off in a couple of months. Use fresh fuel, add stabiliser if the boat sits, and pump the primer bulb until firm. If the Suzuki DF25ATHSW5 for sale cranks but won’t catch, check the fuel filter for water.

No tell tale stream

Often a plugged tell tale hole. Poke it with a thin wire while running. If the stream is still weak and the motor warms up, check the water inlet for weed and think about the impeller.

Trim won’t go up or down

Check the battery first. Then the trim fuse and relay. If the motor needs to come up right now, open the manual release valve and lift it by hand.

Motor over revs and the boat feels slow

Ventilation. The motor is mounted too high, the prop is damaged, or you are trimmed out too far. Trim in and check mounting height.

Starter clicks but won’t turn

Loose battery terminal or a weak battery. Clean and tighten. Then pull start the Suzuki DF25ATHSW5 for sale and get home.

Suzuki DF25ATHSW5 for sale compared with its neighbours

The DF25A family has a version for nearly every boat. If this one is not right for you, one of these probably is.

• The grey Suzuki DF25ATHS5 is the same motor in standard grey and costs a little less.
• For a 20 inch transom, the DF25ATHLW5 long shaft tiller in white is the direct match.
• If you want remote steering on a short shaft boat, see the DF25ATSW5 remote model.
• On a budget with a light boat, the manual tilt DF25AS5 saves money and weight.
• Need a bit more push on a heavier hull? The DF30ATHLW5 uses the same three cylinder platform at 30 HP.
• Going smaller, the DF20ATHLW5 is the 20 HP tiller with power tilt.

You can see every size in the 25 HP Suzuki range or browse all Suzuki outboards. Between the white and grey versions, the only difference is the paint. Pick the colour that matches your boat.

DF25A versus DF30A

Same block, same weight, same size. The 30 makes more peak power and revs a bit higher. If your boat is rated for 30 HP and often carries three or four people, the 30 is worth the extra money. For a typical 14 foot aluminium boat with one or two aboard, the Suzuki DF25ATHSW5 for sale is plenty.

Buying the Suzuki DF25ATHSW5 for sale from us

We are an outboard dealer that sells new motors and ships to buyers worldwide. The process is simple, and we keep it in writing.

1. Send us your country, nearest port or city, and the model.
2. We reply with a delivery quote: crating, freight and any handling, before you pay.
3. You confirm and pay by the agreed method.
4. We ship the Suzuki DF25ATHSW5 for sale in its original crate and send tracking.

Read our terms and conditions and the refund and return policy before ordering. To get a quote, use the contact page. You can also read customer reviews and more about our shop.

Warranty

The motor carries the Suzuki factory limited warranty. The term depends on the region where it is registered and how it is used. In some markets Suzuki offers up to five years on recreational motors, while commercial use is usually shorter. We will tell you what applies for your location when we quote. Suzuki’s global marine site lists the regional distributors.

Shipping times

Most crates leave within a few working days of payment. Sea freight takes longer than air but costs a lot less for a crate this size. We will lay out both options in the quote for the Suzuki DF25ATHSW5 for sale.

What is in the crate

• Suzuki DF25ATHSW5 outboard, factory sealed
• Aluminium three blade propeller, fitted or boxed
• Portable fuel tank and fuel line (as packed by the factory for this model)
• Battery cable set
• Tool kit with spare stop switch clip
• Owner’s manual and warranty card

Not included: battery and battery box. If you need extras like a spare prop or a cover, ask and we can quote them with the Suzuki DF25ATHSW5 for sale.

Checklist before ordering

• Transom measured at about 15 inches.
• Boat capacity plate allows at least 25 HP and the motor weight.
• Transom in good condition, no soft or rotten wood.
• Battery and battery box ready.
• You want tiller steering and you will sit at the back.
• White paint is what you want. Grey is the DF25ATHS5.
• Delivery address or port confirmed for the quote.

If all of that checks out, the Suzuki DF25ATHSW5 for sale is the right motor and we can quote shipping today.

Suzuki DF25ATHSW5 for sale: frequently asked questions

Is this motor new?

Yes. Every Suzuki DF25ATHSW5 for sale on our site is brand new, never run, and shipped in the original Suzuki crate with the factory paperwork.

Does it need a battery to run?

It needs a battery for the electric start and the power trim. The fuel injection itself does not need a battery to run, so with a flat battery you can pull start it and keep going.

Can I use it on a 20 inch transom?

No. A 20 inch transom needs a long shaft. Pick the DF25ATHLW5 or the grey DF25ATHL5.

How fast will my boat go?

It depends on hull, load and prop. A light 14 foot aluminium boat with one person often runs in the mid 20s mph with a 25 HP. Heavier boats less. We would rather not quote a number for your hull without knowing it.

Do you ship to my country?

We ship worldwide. Send your location and we will send a delivery quote for the Suzuki DF25ATHSW5 for sale before you pay.

Can I change it to remote steering later?

Not cheaply. Tiller and remote models use different parts. If you think you might want a console later, buy the remote DF25ATSW5 from the start.

Where do I get parts?

Any Suzuki marine dealer can supply filters, plugs and impellers. Our blog covers service topics too.

Order your Suzuki 25 today

The Suzuki DF25ATHSW5 for sale is a quiet, light, fuel injected 25 with power trim and a tiller that makes sense for small boats. The price is on the page. Shipping is worldwide, and you get the quote before you pay. Message us through the contact page or browse the shop for other sizes.