Mercury boats for sale in Helena, Montana

2025 Mercury Marine FourStroke 5hp Sail Power

Request Price

Helena, Montana

5 MLHA is a long shaft engine for 20" transoms. It has a small alternator for powering things like navigation lights or a small fish finder. Of course, it's a 4-stroke.This engine has a 1.1 quart built-in fuel tank PLUS  a port to plug in a larger tank or a hose from the boat's gas tank.

Trim Base

2025 Mercury Marine FourStroke 4hp

Request Price

Helena, Montana

4 MH 4-stroke is a short shaft engine designed to fit a 15" transom height. It has a built-in fuel tank plus the port to plug in an external tank. Nice and light at 57 pounds.Priced to sell!

Trim Base

2025 Mercury Marine FourStroke 15hp EFI

Request Price

Helena, Montana

15MH is a short shaft 4-stroke that fits on 15" transoms. It has EFI to adapt to different altitudes. The adjustable multi-function tiller handle controls steering.This engine has rope start and manual tilt which keeps the price low. It comes with a 3.2 gallon fuel tank, hose, primer bulb and connector. This engine only weighs 105 pounds!

Trim Base

2025 Mercury Marine FourStroke 20hp EFI

Request Price

Helena, Montana

20 MH is a dandy fuel injected 4-stroke outboard. It has a short shaft to fit a 15 inch transom height. It steers with the multi-function tiller handle. Comes standard with a 3.2 gallon fuel tank, hose, primer bulb and connector.This engine only weighs 105 pounds!

Trim Base

2023 Mercury Marine FourStroke 9.9 hp

Request Price

Helena, Montana

9.9 MLH. This is a great way to get a smooth 4-stroke 9.9. It's a long shaft model for 20" transom height. It has rope pull starting and tiller handle steering. It comes with the fuel line, primer bulb, fitting and 3.2 gallon tank.Best of all, this engine is in stock now!

Trim Base

2013 Mercury Marine 90 EFI

$3,595

Helena, Montana

Here's that used 4-stroke you've been looking for. And at a fraction of the cost of new. It has a new alternator and lower unit seals. The previous owner used it a lot so he kept up on maintenance so he could trust it. This engine is an extra long shaft model that fits on the modern 25" transom height.This is a modern fuel injected engine with EPA 3-star rating. It runs clean and gets good fuel economy. It's designed to run on ordinary pump gas so you don't have to find the higher octane fuel without ethanol unless you want it. We searched the history of this engine and it originally had a 3 year warranty plus a 2 year extended warranty. During those 5 years there were NO warranty claims at all. It's got a good history!Prop could use a day at the prop shop but it's still usable. This engine will work with most Mercury shifters with the addition of a wiring harness adapter. So if you are buying this engine for a Merc equipped boat, it will likely need very little in the way of parts to fit your boat.

Trim Base

2025 Mercury Marine FourStroke 6hp

Request Price

Helena, Montana

6MH 1R250252 is a 4-stroke outboard sized to fit a short-shaft 15 inch transom height.This engine has a small built-in tank in the cowl plus a port to plug in an external tank. It has tiller steering, rope start and manual tilt. It's in stock now!

Trim Base

2025 Mercury Marine FourStroke 9.9hp EFI ProKicker

Request Price

Helena, Montana

9.9ELHPT EFI Command Thrust Pro Kicker. Full-Featured with electric start, power trim and multi-function long tiller handle.This is a long-shaft outboard for 20 inch transom height. It's designed as a kicker motor so it has the gearing and prop for pushing at trolling speeds.We can set you up with wireless throttle and/or steering if you like that idea.1R296873

Trim Base

2025 Mercury Marine Jet 105hp

Request Price

Helena, Montana

Jet 105 ELPT is built from the super reliable 150 Powerhead. SS Impeller standard! This ripping jet outboard mounts to a 27" transom and is usually run with a console boat, however the Advanced Tiller handle is available. It's a fuel injected 4-stroke. It's a 4-cylinder too. Ready for lots of electronics with a 60 amp alternator!This is the jet outboard you've been looking for!Priced well below suggested list price. Call or click for details.

Trim Base

2023 Mercury Marine FourStroke 15 hp EFI

Request Price

Helena, Montana

15 MLH is a smooth running 4-stroke made for 20" long-shaft transom height. This engine is fuel injected so doesn't have carbs! This model is rope start and manual tilt. In stock now!

Trim Base

1999 Mercury 150 XL Offshore

$2,495

Helena, Montana

Consignment 1999 Mercury 150 XL OS Bluewater. This 2-stroke engine has oil injection and fits on 25" transom height--extra long shaft. Ran nice in our shop check...Not used in saltwater. Owner got his new 4-stroke so you can take over this strong running 150.This engine comes with the oil reservoir for automatic oiling.

2024 Mercury Marine FourStroke 9.9 ProKicker

Request Price

Helena, Montana

9.9 ELPT Command Thrust Pro Kicker. This model is for 20" transom height. It's a deluxe kicker so it has electric start, power trim, pro gearcase and prop for trolling.This is the remote version that is controlled with a shifter and steered from the helm. Contact us for a specific quote for your boat.