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Mercury 9.9MLH FourStroke
Inspected & Documented Condition notes recorded before palletizing.
30-Day Startup Warranty Covers block, heads and internal moving components.
In Stock & Ready to Freight Outboard Motors

Mercury 9.9MLH FourStroke

Part no: 9.9MLH
Brand: Mercury
Condition: Used
€2,186.35
Freight included, insured road freight within the UK & Europe (rates)
€2,186.35 delivered across UK & Europe
  • ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
  • Insured European road freight delivery with hydraulic tail-lift service
  • Dispatches in 1–2 business days from our UK & European Logistics Centre
  • Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
Ask a question about this unit

Need a matched transmission, controls or wiring package? Speak with a parts specialist.

Details & Inspection Notes

At 9.9 hp, this used Mercury 9.9MLH FourStroke runs a standard gearcase on a 20 inch shaft, with manual tiller starting and a carbureted fuel system.

Specifications worth knowing

The gearcase ratio comes in at 2.08:1, full throttle sits between 5000 and 6000 rpm, and the alternator is rated 6 amps (76 watts) for topping up a battery while running. Remote fuel tank capacity is listed at 3.2 gallons (12 liters).

What to check before buying

Measure your transom for the 20 inch shaft before you buy; steering is tiller only on this unit, with no remote-control option offered. Ignition is CDI with electronic spark advance, and the cooling system is water-cooled with a thermostat.

Who it suits

A straightforward tiller motor for aluminum, inflatable, utility, jon, and sailboats that do not call for remote steering or a heavy-duty low-speed gearcase.

Condition notes

Dry weight is listed at 84 lbs, with manual ratcheting trim and a through-prop exhaust. Since this is a used unit, ask us about hours and service history, as wear varies boat to boat.

Common questions

Does it charge a battery while running? Yes, the alternator here is rated 6 amps (76 watts).

What fuel does Mercury recommend? 87 octane with up to 10 percent ethanol.

What oil is recommended for this engine? Mercury FourStroke 10W-30 oil.

Is a propeller included? Yes, this listing includes a propeller.

Startup & Installation Checklist

  • Inspect all external gaskets, seals, spark plugs and timing components prior to installation.
  • Refill engine oil, transmission gear oil and coolant to manufacturer-specified capacities before initial cranking.
  • Prime the lubrication system and verify ECU wiring pinouts, sensors, and ground connections.
  • Startup warranty covers internal lubricated components, cylinder heads, and engine block for 30 days from delivery.

Full terms: 30-day startup warranty · returns

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