Tohatsu 30hp Outboard: Full Specs and Buying Guide

A Tohatsu 30hp outboard shows up on a lot of shortlists for a simple reason: it sits right in the sweet spot between a small tiller engine and a full-size remote-control rig, and Tohatsu builds it with a reputation for just running, year after year, without much drama. We keep these in stock regularly and ship them worldwide, so here’s the real breakdown of what you’re buying, what it’s built for, and what to expect once it’s on your transom.

Tohatsu 30hp Outboard Specifications

The current Tohatsu 30hp outboard, the MFS30D, is a three-cylinder four-stroke. Here’s what’s on the spec sheet:

Specification	Detail
Engine type	4-stroke, inline 3-cylinder
Displacement	696cc
Bore x stroke	63mm x 74.5mm
Full throttle RPM	5,000-6,000 rpm
Fuel induction	Electronic fuel injection (EFI on current models)
Starting	Electric start standard on remote models
Alternator output	16 amp
Weight	Approximately 78-85 kg (172-187 lb) depending on shaft and configuration
Shaft lengths	15″, 20″, and 25″
Gear ratio	2.08:1
Trim system	Power trim and tilt available on EFI remote models
Fuel tank	Integral or remote tank depending on configuration
Recommended fuel	87 octane unleaded minimum

Tohatsu also still sells a carbureted version of the 30hp in some markets for buyers who want the mechanical simplicity of a carb over EFI, though the EFI version is what we most commonly stock since it starts more reliably in cold weather and handles altitude changes without adjustment.

What Sets the Tohatsu 30hp Outboard Apart

Tohatsu has built a name in the marine industry that punches above its size, largely because the company has been building small and mid-range four-strokes longer than most of its competitors have been building four-strokes at all. A few things buyers consistently point to:

• Weight-to-power ratio. At around 78 to 85 kg, the Tohatsu 30hp outboard is on the lighter end of its class, which matters a lot on smaller aluminum boats and inflatables where every kilogram on the transom affects handling.
• Corrosion protection. Tohatsu uses a combination of anodes, coated components, and a design that drains water fully from the block, which shows up in how well these hold up after years of saltwater use.
• Shared parts with Mercury and MotorGuide. Tohatsu manufactures engines for Mercury’s small-block four-stroke lineup under licensing arrangements, which means parts and service knowledge for the Tohatsu 30hp outboard are more widely available than you might expect from a brand that isn’t always the first name people think of.
• Simple electrical architecture. Fewer sensors and a more straightforward wiring harness than some competitors, which matters if you’re doing your own troubleshooting or running in a region where dealer support is thin.

Who the Tohatsu 30hp Outboard Is Built For

• Aluminum fishing boats and jon boats in the 14 to 17 foot range where 30 HP is enough power without overpowering the hull
• Inflatable and rigid-hull inflatable boats (RIBs) where weight matters as much as horsepower
• Small pontoon boats needing enough push for casual cruising without the fuel burn of a bigger engine
• Sailboat auxiliary power on boats needing more thrust than a small kicker but not wanting the bulk of a 40 or 50 HP unit
• Commercial and workboat applications where reliability and parts simplicity matter more than top-end performance

On the Water: What to Expect

The three-cylinder layout gives the Tohatsu 30hp outboard smoother running than the twin-cylinder engines some competitors still sell at this horsepower, and the EFI system means starts are consistent whether the engine’s been sitting for a day or a month. Hole shot is respectable for the class, not class-leading, but more than adequate for the boats this engine is typically matched to. Cruise-speed fuel economy is a genuine strength — owners running around 4,000 to 4,500 RPM regularly report fuel burn in the 2 to 2.5 gallons per hour range depending on load and prop selection, which keeps a day on the water affordable even with a smaller fuel tank.

Maintenance on a Tohatsu 30hp Outboard

Routine maintenance follows the standard four-stroke schedule: oil and filter change around every 100 hours or annually, whichever comes first, spark plug replacement on the same interval, and a water pump impeller inspection roughly every two years or 200 hours since impeller failure is the most common cause of overheating on any outboard that’s overdue for service. Gear oil in the lower unit should be checked and changed annually, particularly if the boat sees regular saltwater use. None of this is unusual for a four-stroke in this class, and the parts commonality with Mercury’s small-block engines means service items are easy to source in most markets.

Tohatsu 30hp Outboard vs. Competing 30 HP Four-Strokes

Compared to Yamaha, Suzuki, and Mercury’s own 30 HP offerings, the Tohatsu 30hp outboard generally comes in lighter and at a lower price point, without giving up much on reliability. Where it can fall behind is brand recognition and resale value in some markets — Tohatsu simply isn’t as widely known to casual boat buyers, even though the engineering underneath is solid and, in the case of the Mercury relationship, literally shares DNA with a much more recognized brand. For buyers who care more about performance-per-dollar than badge recognition, that’s a fair trade.

Choosing the Right Shaft Length and Configuration

Shaft length matters more than almost any other spec on this engine. Measure your transom height from the top of the transom straight down to the bottom of the hull before ordering — a 15″ engine on a 20″ transom (or the reverse) will sit at the wrong height in the water and hurt both performance and prop life. The Tohatsu 30hp outboard is available in tiller and remote-control configurations; tiller versions suit smaller boats where direct steering feel matters, while remote versions with power trim make more sense on boats with a console and multiple occupants. If you’re not certain which configuration fits your boat, send us the make, model, and transom measurement and we’ll confirm before you order.

Rigging and Propeller Selection

Getting the most out of a Tohatsu 30hp outboard comes down partly to prop choice, which is one of the more overlooked parts of buying an outboard. A stock aluminum prop is fine for general use, but if you’re running a heavier aluminum boat loaded with gear, a slightly lower pitch prop can improve hole shot at the cost of a bit of top speed. If your boat is light and you mostly run flat water at cruise speed, a higher pitch prop can pick up a few extra RPM at wide-open throttle. We can recommend a starting pitch based on your boat length, typical load, and whether you prioritize acceleration or top speed, and you can always fine-tune from there once you’ve run it a season.

Battery sizing matters too if you’re running the electric-start remote configuration. A standard marine cranking battery in the 500 to 650 cold-cranking-amp range is more than sufficient for this engine’s 16-amp alternator, and you don’t need anything oversized unless you’re also running significant onboard electronics off the same battery.

Tohatsu 30hp Outboard vs. Yamaha and Suzuki 30 HP Models

Buyers comparing this engine against Yamaha’s F30 or Suzuki’s DF30A four-strokes usually find the specs closer than the brand recognition gap would suggest. Yamaha and Suzuki generally have wider dealer networks in North America and Europe, which matters if you want warranty service from an authorized shop close to home. Tohatsu’s advantage shows up in price — the Tohatsu 30hp outboard typically costs noticeably less than either competitor for essentially comparable performance, and because of the Mercury parts-sharing relationship, service parts aren’t as hard to find as the brand’s smaller dealer footprint might suggest. If you’re buying for a region with limited authorized-dealer coverage of any brand, all three engines end up depending more on independent marine mechanics anyway, which narrows the practical gap between them considerably.

Storage and Off-Season Care

Winterizing a Tohatsu 30hp outboard follows the standard four-stroke routine: run fogging oil through the cylinders if you’re storing in freezing conditions, change the oil before storage rather than after (old oil sitting in the crankcase over winter holds more contaminants against internal surfaces), and drain the fuel system or add stabilizer if the boat will sit for more than a couple months. Disconnect the battery for extended storage, and always store the engine in the fully-down position to let the water pump housing drain completely — residual water left in the lower unit is one of the more common causes of freeze damage over a winter layup.

What Owners Say

The consistent feedback we hear from Tohatsu 30hp outboard owners centers on how little they think about the engine once it’s rigged and running — which, for a workhorse engine in this class, is exactly the point. Fishing guides and commercial operators in particular mention how the EFI system starts every time without the choke fiddling some carbureted engines still require, and several customers running these on inflatables have specifically mentioned how much easier the lighter weight makes trailer loading and transom mounting compared to a similarly-powered four-stroke from a heavier competitor.

What We Stock and Ship

We currently carry the Tohatsu 30 HP MFS30DEFS outboard motor, our standard EFI configuration with electric start and power trim. Every unit is inspected before it leaves our warehouse, and we handle export crating and documentation so the engine arrives ready to mount rather than requiring you to sort out customs paperwork on your end.

Worldwide Shipping

We ship the Tohatsu 30hp outboard internationally by sea and air freight, with crating and insurance included. We’ve shipped this engine to customers across Africa, the Caribbean, Southeast Asia, the Middle East, and Europe, and we handle the export documentation so you’re not left guessing about customs classifications when the engine arrives at port.

Bulk and Fleet Orders

Fishing cooperatives, rental operators, and dealers looking to order multiple Tohatsu 30hp outboard units at once should reach out directly — we put together volume pricing and consolidated shipping for larger orders so freight costs stay reasonable on a per-unit basis rather than getting charged individually.

Common Questions About the Tohatsu 30hp Outboard

Is the Tohatsu 30hp outboard EFI or carbureted?
We stock the EFI version (MFS30DEFS), which starts more reliably in cold weather and handles altitude and temperature changes automatically without manual adjustment.

How much does it weigh?
Approximately 78 to 85 kg (172 to 187 lb) depending on shaft length and whether it’s tiller or remote configuration.

What boats is it best suited for?
Aluminum boats and jon boats in the 14 to 17 foot range, small RIBs and inflatables, and light pontoons where 30 HP matches the hull without overpowering it.

Are parts easy to find?
Yes. Tohatsu builds engines for Mercury’s small-block four-stroke lineup, and this parts commonality means service items are widely available even in markets where Tohatsu-branded dealers are less common.

Do you ship internationally?
Yes, we export worldwide with sea and air freight options depending on your timeline and budget.

What’s the fuel economy like?
Owners running around 4,000 to 4,500 RPM typically report 2 to 2.5 gallons per hour depending on load and prop, which is competitive for a 30 HP four-stroke.

Can I run this engine on a sailboat?
Yes, the Tohatsu 30hp outboard is a common choice for auxiliary sailboat power where more thrust than a small kicker is needed without the bulk of a 40 or 50 HP engine.

Does it come with power trim?
The EFI remote-control configuration we stock includes power trim and tilt. Tiller versions typically use manual tilt instead.

Ready to Order Your Tohatsu 30hp Outboard

If you want a light, fuel-efficient four-stroke with a genuinely solid reliability track record and don’t need the biggest badge on the transom to feel good about your purchase, the Tohatsu 30hp outboard is one of the smarter buys in this horsepower class. Reach out with your boat’s transom height and typical use and we’ll confirm the right configuration and get you a shipping quote. You can also browse our other outboard motor buying guides if you’re still comparing this against other 30 HP options.

For official specifications and warranty details straight from the manufacturer, Tohatsu’s official site maintains full documentation on the current MFS30D lineup.