Mercury FourStroke 6hp 15in Short Shaft Tiller Outboard Motor
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Product Info
Product Info
When you need reliable power that’s easy to handle, the Mercury FourStroke 6hp 15" Short Shaft Tiller Outboard Motor delivers. Compact and lightweight at just 26kg, it’s built for portability and performance, making it a favourite for small fishing boats, tenders, and inflatables. Designed with ergonomic front and rear grips, this outboard is simple to lift, carry, and mount — perfect for solo use or frequent transport between boats.
Beneath the sleek cowling lies a robust 123cc OHV engine that produces a genuine 6hp output for confident cruising and clean acceleration. Starting is quick and easy thanks to Mercury’s auto decompression and digital ignition systems, while the forward-mounted F-N-R shift lever keeps gear changes within easy reach. The automatic reverse lock system adds another layer of control and safety, keeping the engine steady when shifting in reverse.
The integrated 1L fuel tank makes the most of your onboard space and includes a ventilated cap and external shutoff to prevent spills and allow the carburettor to dry between uses. For longer trips, the included connection for an optional 12L remote fuel tank extends your range with no compromise on convenience. Steering feels smooth and responsive through the long tiller handle, which features adjustable throttle and steering friction for a tailored feel.
With six manual trim positions and a shallow-water drive setting, you can easily adjust performance for different conditions — ideal for fishing in tight creeks or exploring shallow bays. Mercury’s exclusive through-prop exhaust system, shared with the 4hp and 5hp models, enhances operation efficiency for smooth performance across all speeds. The low oil pressure warning light adds reassurance, while the freshwater flush system makes end-of-day maintenance quick and effective, helping protect the engine from salt and debris build-up.
Built with Mercury’s renowned corrosion-resistant engineering and backed by a 3+3 non-declining warranty, this outboard is made to last. The Mercury FourStroke 6hp is the ultimate blend of portability, reliability, and performance — ready to power your next on-water adventure with ease.
Features
- Large 123cc OHV engine that delivers true 4hp power with auto decompression and digital ignition for smooth starts
- Lightweight 26kg design with ergonomic handles and rear grips for easy lifting, transport, and mounting
- Forward-mounted F-N-R shift lever with automatic reverse lock for added safety and control
- 1L integral fuel tank with vented cap, external shutoff, and optional 12L remote tank connection for extended range
- Long tiller handle with integrated throttle and friction control for precise, comfortable operation
- Six-position trim and shallow-water drive system for safe, versatile performance in any depth
- Exclusive through-prop exhaust system for smoother, more efficient operation across the rev range
- Low oil pressure warning light to protect the engine and alert the operator before damage occurs
- Freshwater flush port that makes rinsing salt and debris quick and easy after every trip
- Backed by Mercury’s 3+3=6 year non-declining warranty for lasting confidence on the water
Product Overview
Built to take on the harshest marine conditions, Mercury FourStroke outboards come armed with corrosion-fighting tech from top to bottom. We’re talking advanced alloys, tough-as-nails protective coatings, sealed electronics to keep the nasties out, and an easy freshwater flush system to rinse everything clean after a big day on the water. Premium protection that keeps your motor running stronger for longer.
Advanced tillerSet it up your way. Mercury’s adjustable tiller puts all the controls right where you need them, with options for left- or right-handed operation on select models. Comfortable, natural steering that keeps you in charge of every adventure.
Easy portabilityLightweight, simple to mount, and built for fun. Mercury’s 2.5–20hp four-stroke range lets you take the good times anywhere — from the tinny on the river to the tender behind the cruiser.
Convenient MaintenanceMercury makes the upkeep easy as. A no-spill oil change system, easy-out fuel filter, and a lifetime maintenance-free valve train all help keep you on the water longer and out of the shed.
Mercury 3 + 3 = 6 year warranty
When you purchase a brand-new Mercury Outboard from an authorised dealer, you’re covered by a massive 3+3 year warranty. That includes a bonus extra 3 years, factory-backed, with the same comprehensive coverage as Mercury’s standard 3-year manufacturer’s warranty — labour excluded — for any failures caused by defects in materials or workmanship. And good news: if you pass the motor on, any unexpired warranty can be transferred to the next owner as long as the product is properly re-registered.
Bonus Warranty Conditions
- The dealer must complete and document the official Mercury Marine pre-delivery inspection. Warranty only kicks in once the dealer has correctly registered your outboard.
- All servicing, maintenance, and repairs must be carried out by a factory-authorised Mercury dealer, and logged with Mercury.
- Stick to the recommended service intervals and maintenance schedule from the date of purchase.
- Only use genuine Mercury parts, oils, and lubricants.
- Make sure each service is recorded in your logbook and registered online by your authorised dealer.
Maintenance Schedule
First 3 Month Inspection3 months from date of sale or 20 hours for use - whichever occurs first. This post sale inspection will ensure everything is operating as required on your new engine. Even if your engine has only been used for a few hours, it is important to get this inspection done by the due date.
Annual InspectionOnce a year or every 100 hours of use - whichever occurs first.
Tech Spec
| 2.5HP SHORT SHAFT | 3.5HP SHORT SHAFT | 3.5HP LONG SHAFT | 4HP SHORT SHAFT | 5HP SHORT SHAFT | 6HP SHORT SHAFT | 6HP LONG SHAFT | |
|---|---|---|---|---|---|---|---|
| HORSE POWER | 2.5HP | 3.5HP | 3.5HP | 4HP | 5HP | 6HP | 6HP |
| SHAFT LENGTH | 15" | 15" | 20" | 15" | 15" | 15" | 20" |
| TRANSOM BRACKET TO CAVITATION PLATE MEASUREMENT | 17" 434mm | 17" 434mm | 17" 434mm | 17" 434mm | 17" 434mm | 22" 561mm | 22" 561mm |
| SUITS TRANSOM HEIGHTS | 15-17.5" 381-445mm | 15-17.5" 381-445mm | 15-17.5" 381-445mm | 15-17.5" 381-445mm | 15-17.5" 381-445mm | 19-22.5" 483-572mm | 19-22.5" 483-572mm |
| CAPACITY/CYLINDERS | 85CC / 1cyl | 85CC / 1cyl | 85CC / 1cyl | 123cc / 1cyl | 123cc / 1cyl | 123cc / 1cyl | 123cc / 1cyl |
| MAX RPM AT FULL THROTTLE | 4500-5500 | 5000-6000 | 5000-6000 | 4500-5500 | 4500-5500 | 5000-6000 | 5000-6000 |
| COOLING SYSTEM | Water-cooled with thermostat | ||||||
| STARTING | Manual | ||||||
| FUEL SYSTEM | Carburettor | ||||||
| FUEL TYPE | Regular Unleaded | ||||||
| FUEL TANK | Built-in 1L | Built-in 1L | Built-in 1L | Built-in 1.1L | Built-in 1.1L | Built-in 1.1L | Built-in 1.1L |
| GEAR RATIO | 2.15:1 | ||||||
| CONTROL & GEAR SHIFT | Tiller 360° / F-N | Tiller with side shift 360° / F-N | Tiller with side shift 360° / F-N | Tiller with side shift / F-N-R | Tiller with side shift / F-N-R | Tiller with side shift / F-N-R | Tiller with side shift / F-N-R |
| MOUNT STYLE | Thumbscrew | ||||||
| TRIM/TILT | Manual- 4 position | Manual- 4 position | Manual- 4 position | Manual- 6 position | Manual- 6 position | Manual- 6 position | Manual- 6 position |
| PROPELLOR | 3 blade aluminium | ||||||
| WEIGHT | 18kg | 18kg | 18kg | 26.3kg | 26.3kg | 26.3kg | 27.1kg |
| WARRANTY | 3+3=6 | ||||||