Ultimate BoatingMercury FourStroke 80 EFI

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Mercury

Mercury FourStroke 80 EFI: specifications

The Mercury FourStroke 80 EFI is an outboard rated at 80 hp with inline four-cylinder architecture.

Head to head with its direct rivals ↓

Key figures

Power
80hp
Dry weight
163kg
Displacement
2,100cm³
Alternator output
35A
Indicative price
13,517
Maximum warranty
5years

Sources and technical context

Document year: 2017.

Manufacturer's official documentation. The original document link has not yet been recorded for this page.

Notes and conditions (FR)

Manufacturer's notes (in French)

Mercury UVP-Preisliste DE 2026. Indicative source price: request a quote for your country, date and required configuration.

Technical specifications

Block & combustion

ArchitectureL4
Cylinders4
Cycle4-stroke
Displacement2,100 cm³
Bore × stroke90 × 81 mm
Compression ration/a
Max rpm4500–5500 rpm
Specific output38 hp/L
Fuel systemEFI
Min. fuelRON 90 mini

Transmission & gearcase

Gear ratio2,07:1
Propeller configurationMono-hélice
Counter-rotating dual propn/a
2-speed gearboxNo
Counter-rotating versionNo
Available shaftsL (20")

Weight & footprint

Dry weight (transom load)163 kg (version la plus légère (à sec))
Power-to-weight ratio0.49 hp/kg

Electrical charging

Alternator (max)35 A
Amps per horsepower0.44 A/hp

Control & integration

Digital throttle & shift (DBW)No
ControlTélécommande (méca)
SteeringTélécommande (Big Tiller en option)
Power steeringNo
Docking joystickNo
GPS position holdNo
Direct injectionNo
VTEC (variable timing)No

Cost & warranty

Public price13,517 €
Cost per horsepower169 €/hp
Base warranty2 years
Maximum warranty (conditional)5 years

Operation & compliance

Emissions standardRCD 2013/53/UE

Head to head with its direct rivals

Prices, warranties and test conditions are not harmonised. They remain visible but do not determine strengths or rankings.

Side-by-side figures for the FourStroke 80 EFI against Honda BF80 · Selva Spearfish 80 XS EFI · Suzuki DF80A, on the criteria that drive the purchase.

CriterionFourStroke 80 EFIHonda BF80Selva Spearfish 80 XS EFISuzuki DF80A
Power hp80808080
Dry weight kg163165162156
Power / weight hp/kg0.490.480.490.51
Alternator output A35443527
Cost per hp €/hp169152159156
Base warranty years2355

An index requires at least two criteria documented for every compared engine. “n/a” means the available data cannot assess this use; it is not a poor rating.

How we compare →

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