Mercury 15hp Outboard Engine

This engine is supplied in partnership with Cambridge Outboards, an official Tohatsu dealer giving you peace of mind with expert support and matching dealer pricing.

Overview

The Mercury 15hp EFI 4-stroke outboard is a powerful, portable option for inflatable boats and small craft when you want stronger thrust, practical control options, and modern EFI performance. With multiple start, steering, and trim configurations available, it’s easy to spec this engine to suit your boat and the way you fish.

Key Benefits

• EFI 4-stroke performance for strong, usable power and efficient running
• Choose your start option: pull start or electric start
• Choose your control style: tiller steering or remote steering
• F-N-R gearing for easier low-speed manoeuvring and docking
• Suits a wide range of inflatable and small-boat setups, including Hydrus air or aluminium deck models

Dealer Support

This engine is supplied in partnership with Cambridge Outboards, an official Tohatsu dealer, providing expert support and matching dealer pricing.

Specifications

• Power: 15hp / 11.1kW
• Engine Type: Inline 2
• Displacement: 333cc
• Full Throttle RPM: 5,700 – 6,200
• Fuel Induction System: 2 valves per cylinder, single overhead cam (SOHC)
• Fuel System: Electronic Fuel Injection (EFI)
• Alternator Output: 12 amp / 145 watt (electric start)
• Recommended Fuel: 87 octane compatible (up to 10% ethanol)
• Recommended Oil: 25W-40 Synthetic Blend, Mercury FC-W 10W-30 4-Stroke Marine Oil
• Engine Protection Warning System: Low oil pressure, over-rev, overheat, sensor failure
• Starting Options: Manual (pull start), electric
• Steering Options: Tiller, remote
• Gear Shift: F-N-R
• Gearcase Ratio: 2.15:1
• Dry Weight (lightest model): 99 lb / 45 kg
• CARB Star Rating: 3
• Bore x Stroke: 61 x 57mm
• Cooling System: Water-cooled with thermostat
• Trim System: Manual, power tilt
• Trim Positions: 6
• Exhaust System: Through prop
• Shallow Water Drive: Yes
• Shallow Water Trim Range: 16°
• Remote Fuel Tank: Optional
• Remote Fuel Tank Supplied: 25L
• Colour: Phantom Black

Shaft Length Options

• Short Shaft: 15″ / 381mm
• Long Shaft: 20″ / 508mm

FAQs

Is this outboard suitable for inflatable boats?

Yes – the Mercury 15hp EFI is a strong choice for inflatables when you want extra thrust and control, and it’s listed as a great match for Hydrus air or aluminium deck boats.

Is it pull start or electric start?

Both options are available – you can choose pull start or electric start.

Can I run tiller steering, or do I need remote controls?

Both are supported. You can choose tiller steering for simplicity or remote steering for console-style setups.

Does it have reverse?

Yes – it has F-N-R (Forward-Neutral-Reverse), which is very helpful when docking or positioning in wind and tide.

Does it come with a fuel tank?

Yes – a 25L remote fuel tank is supplied, and a remote fuel tank option is supported.

Which shaft length should I choose?

Short shaft (15″ / 381mm) suits many inflatables and lower transoms, while long shaft (20″ / 508mm) is better for higher transoms and some RIB setups.

What trim options are available?

It supports manual trim, and power tilt is available depending on configuration.

Shipping cost

There is a (Pre Delivery Inspection) and shipping charge for this item to mainland UK:

If shipping with a Hydrus then shipping will be:

Please let us know if you prefer to collect for FREE from Worthing, West Sussex or if you’d like to arrange your own delivery.

Please Note: Our warehouse is NOT open to the public.

For shipping overseas please contact us first.

Please see all our Shipping Fees here.