Used Outboard Motors For Sale: The Complete Buying Guide

Not everyone shopping for a replacement outboard has their heart set on one brand. A lot of buyers just want the right horsepower, the right shaft length, and a motor that’s actually been tested before it ships — brand is a secondary conversation. If that’s where you’re at, this is the guide for you. We carry used outboard motors for sale across Yamaha, Suzuki, Mercury, and Tohatsu, spanning 2.5hp portables to a 425hp offshore V8, and this covers how to think through the decision regardless of which nameplate you end up with.

Why Buy Used Instead of New

A new outboard, especially anything past 150hp, costs enough that the decision isn’t casual for most boat owners. A tested used motor with documented compression and hours gets you most of the reliability of new at a fraction of the price, and for a lot of boats — especially ones you’re not planning to own for the next twenty years — that math makes a lot more sense than financing a brand-new powerhead.

Brands We Carry and What Sets Each Apart

We stock four manufacturers regularly, and each has a slightly different personality even though the underlying four-stroke technology across the industry has converged quite a bit over the last decade.

• Yamaha — the broadest reputation for long-term reliability, with a lineup running from small 6-9.9hp portables to the 425hp V8 flagship. Read our full Yamaha buying guide for model-specific detail.
• Suzuki — strong fuel injection engineering across the lineup and a genuine value proposition compared to the bigger names, from 2.5hp portables to 300hp V6 offshore power. See our Suzuki buying guide.
• Mercury — home of the supercharged Verado line, which delivers smoother, quieter power than naturally aspirated competitors at the same horsepower. Check our Mercury buying guide for the full lineup.
• Tohatsu — a smaller name in some markets but a genuinely solid mid-size and small-motor manufacturer, often at a lower price point than the bigger three. We carry the Tohatsu 6 HP MFS6DWS, the Tohatsu 20hp Long Shaft, and the Tohatsu 30 HP MFS30DEFS regularly.

Choosing Horsepower: What Actually Matters

Every boat has a maximum rated horsepower, usually printed on a capacity plate near the helm or transom. Never exceed it, even if a bigger motor is available at a good price — this isn’t a suggestion, it’s a safety and insurance issue in most jurisdictions. Within your allowed range, think about how you actually use the boat: a boat mostly used for calm-water fishing doesn’t need the same power as one that regularly runs offshore in rough conditions. More horsepower means more weight, more fuel burn, and more purchase cost, so matching to actual use rather than maximum rating usually serves owners better.

Shaft Length: Get This Right Before Anything Else

Measure your transom height from the top of the transom straight down to the bottom of the hull. Match that measurement to short (15″), long (20″), or extra-long (25″/30″) shaft options — every manufacturer uses roughly this same system even though the letter codes differ slightly between brands. A motor mounted at the wrong height either cavitates (sucking air instead of biting water) or runs the lower unit too deep, and neither is a minor issue. This is the single most common mistake we see buyers almost make, and we check it against your boat details before anything ships.

What to Check on Any Used Outboard, Regardless of Brand

• Compression across all cylinders, documented in writing with real numbers.
• Hours on the motor, pulled from a digital gauge where available, not estimated.
• Lower unit and gear case condition — check for fishing line damage at the prop shaft seal and confirm gear oil isn’t contaminated with water.
• Corrosion at the powerhead, mounting bracket, and trim system, especially on saltwater-run motors.
• Fuel system condition — ethanol fuel left sitting during storage causes more used-outboard problems than almost any other single factor.
• Power trim and tilt function, tested under actual load rather than just cycled out of the water.

This checklist applies whether you’re looking at a Yamaha, Suzuki, Mercury, or Tohatsu. Any seller who can’t give you real numbers on these points is asking you to buy on faith.

Two-Stroke vs Four-Stroke

Most of what’s sold new today is four-stroke, and that’s most of what we carry used as well. Four-strokes run quieter, burn less fuel, and don’t need pre-mixed oil in the gas tank. Two-strokes, where you still find them used, are typically lighter for the same horsepower, which can matter on smaller, weight-sensitive hulls. Mercury’s Optimax line bridges the gap somewhat with direct-injection two-stroke technology that cuts emissions and improves fuel economy over older carbureted two-strokes, while keeping some of the weight advantage.

Small Portable vs Big Offshore Power: Two Different Buying Processes

Shopping for a 6-9.9hp portable is a fundamentally different process than shopping for a 250-425hp offshore unit. Small portables are simple, cheap enough that a minor issue isn’t a financial disaster, and easy to inspect yourself even without much mechanical background. Big offshore V6 and V8 units represent a serious investment, and the stakes for buying an untested unit are much higher — a supercharger fault on a Verado or an injector problem on a big Suzuki V6 is not a cheap surprise. The bigger the motor, the more insistent you should be on real documentation before you commit.

Used vs New: The Honest Comparison

Option	Typical Cost Position	What You Get
New Outboard	Highest, and often a real wait on higher-hp models	Full factory warranty, zero hours
Used, Untested	Lowest, but genuinely risky	Unknown compression, unknown hours, no documentation
Tested Used Outboard	Meaningfully below new	Documented compression and hours, verified lower unit, warranty-backed

Shipping Outboards Worldwide

Every outboard we ship, regardless of brand or size, gets crated for freight with fluids drained and sealed to meet shipping compliance. Small portables often move efficiently by air; larger V6 and V8 units typically go by ocean freight given their weight and bulk. We handle export documentation on our end, and customers across the Caribbean, West Africa, the Middle East, and Southeast Asia order from us regularly — coastal and island markets in particular, where local dealer stock across all four brands can be limited.

Maintenance Costs You Should Budget For

Regardless of brand, a four-stroke outboard needs an oil change roughly every 100 hours or once a season, a water pump impeller replacement every 2-3 years, and periodic gear oil changes in the lower unit. Skipping impeller service is one of the most common reasons a used outboard shows up needing expensive overheating repairs that a $30 part would have prevented. Budget for this regardless of which brand you choose.

Common Mistakes First-Time Used Outboard Buyers Make

• Buying on price alone without asking for compression numbers — the cheapest listing is often cheap for a reason.
• Skipping the shaft length check and assuming any motor of the right horsepower will fit, which leads to a motor that mounts wrong and performs badly.
• Not asking about saltwater vs freshwater use on the donor boat, which affects corrosion risk significantly.
• Ignoring what’s actually included — control box, cables, propeller, and rigging vary by listing, and assuming everything’s included when it isn’t leads to unexpected extra costs after the motor arrives.
• Not confirming warranty terms before paying, including what happens if something’s found wrong after delivery.

Every one of these is avoidable by asking direct questions before you commit, which is exactly what we walk through with every customer regardless of which brand they’re leaning toward.

Storage and Fuel: The Underrated Factor in Used Outboard Condition

How a boat was stored between uses tells you almost as much about outboard condition as how many hours are on it. A motor that sat in a garage over winter with fuel stabilizer added and the carburetor or injectors properly prepped is in a very different condition than one left outside with ethanol fuel sitting in the system for months. We ask about storage conditions and fuel type on every donor motor we pull, and we flag anything that raises questions before it goes into inventory. For general reference on ethanol fuel’s effects on small engines, the EPA’s guidance on ethanol in marine engines is a useful resource.

Buying Online vs From a Local Seller

A local listing lets you hear the motor run, which is genuinely valuable. But local inventory across four brands, dozens of horsepower classes, and multiple shaft configurations is never going to match what a dedicated tested-inventory seller carries. For common configurations, local might be your fastest option. For anything specific — a particular Verado horsepower, a Suzuki V6, or the 425hp Yamaha flagship — buying from a source with real testing and broader stock is usually the more practical route, and it’s exactly the gap we aim to fill for buyers who can’t find what they need nearby.

Real Scenarios We See Regularly

A first-time boat owner unsure which brand to choose ends up prioritizing shaft length and horsepower match over brand loyalty, since any of the four brands we carry will serve their needs well at that size.

A fleet operator running mixed brands across several boats standardizes on ordering tested used units from a single source rather than dealing with inconsistent documentation from multiple local sellers.

A buyer in a coastal market with thin dealer support for any single brand ends up choosing based on whichever tested unit fits their horsepower and shaft needs best, rather than being locked into one manufacturer by local availability.

How Ordering Works

1. Confirm your boat’s rated horsepower and required shaft length.
2. Browse across brands, or tell us your boat details and we’ll match options from current stock.
3. We confirm hours, compression, and lower unit condition before you order.
4. We quote freight and crate the motor for your chosen shipping method.
5. You receive the motor covered by our warranty period from delivery.

Frequently Asked Questions

How much does a used outboard motor cost?
It depends heavily on brand, horsepower, and configuration. Small portables cost a fraction of large offshore V6 and V8 units. Check individual listings for current pricing.

Do used outboard motors come with a warranty?
Yes, every motor we sell across all four brands is tested and backed by a warranty period.

Can I get a used outboard motor shipped internationally?
Yes, we ship used outboard motors for sale worldwide and handle export paperwork on our end.

Which brand is the most reliable?
All four brands we carry have strong reliability track records when properly maintained. The right choice usually comes down to your specific horsepower and shaft length needs, plus price, more than a meaningful reliability gap.

What shaft length do I need?
Measure your transom height and match it to short (15″), long (20″), or extra-long (25″/30″) options — this applies across all brands.

How many hours is too many on a used outboard?
There’s no universal cutoff. A well-maintained motor with 1,500 hours can be in better shape than a neglected one with 300. Documented compression and maintenance history tell you more than hours alone.

Should I buy two-stroke or four-stroke?
Four-stroke for most buyers — quieter, more fuel efficient, no oil pre-mixing. A lighter two-stroke or an Optimax direct-injection unit can make sense on weight-sensitive smaller hulls.

Does saltwater use affect which brand I should choose?
Not particularly — all four brands we carry hold up fine in saltwater with proper flushing and anode maintenance. What matters more is how the specific motor was cared for, not the brand name on the cowling.

What’s included with a used outboard purchase?
This varies by listing — some include the control box, cables, and propeller, others are powerhead and lower unit only. Check the specific listing or ask us directly.

Bottom Line

Whether you end up with a Yamaha, Suzuki, Mercury, or Tohatsu, the buying process is the same: confirm horsepower and shaft length, insist on documented compression and hours, and buy from a seller who tests before they list. Browse our current stock of used outboard motors for sale, check the specs on the listing that matches your boat, and reach out if you need help matching horsepower and shaft length before you order.