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Grove Harbour Marine
2017 Mercury MerCruiser 4.3L MPI ECT 180HP
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Fly Out of the Gate

Power and acceleration that gets you to top speed in no time.

Standard Features
  • Durable.
    Longevity is built in, from the cast-iron block and closed freshwater cooling system to the MercFusion-process electro-deposition paint. MerCathode®, an active cathodic anti-corrosion system, is standard with Bravo® drives. SeaCore®, which protects core components with hardcoat anodizing, also is available with Bravo.
  • Effortless Efficiency.
    This engine's exceptional power-to-weight ratio enhances fuel economy, while the MPI system locks it in. ECT (Emissions Control Technology) works hand in hand with the MPI system and the CPU "brain" to further optimize efficiency and reduce emissions.
  • Repower Financing.
    With Mercury Repower Financing, you can easily power up everything from fishing boats, to runabouts, to cruisers with flexible financing on the engine. You can also choose to finance rigging, gauges, controls and even labor. Mercury Repower Financing offers low rates and low monthly payments to fit a boater's budget.
  • Smooth Running.
    The MPI system fine-tunes the fuel-to-air mixture in the combustion chamber, delivering ultra-smooth operation from idle to wide-open throttle. Mercury's engineers achieved outstanding Noise / Vibration / Harshness (NVH) levels in the 4.3L. Power steering is standard, providing you complete and effortless control.
  • Total Versatility.
    Alpha® or Bravo® drive? Single or twins? MPI or ECT? Whether your vessel is a bowrider, cuddy, pontoon or houseboat, it's easy to configure the perfect 4.3L sterndrive power package for long-range, reliable fun.
Engine Specs
Max RPM (WOT)4400-4800
Engine TypeV-6
Bore & Stroke (in/mm)4.00 x 3.48 / 101 x 88 mm
Compression Ratio9.4:1
Cooling SystemRaw water
Ignition SystemCrank fired high voltage switch with knock control
Accessory Drive SystemSerpentine belt
Engine Guardian SystemHigh coolant temperature
Knock control
Low drive lubricant
Low oil pressure
Low voltage
Alternator Watt65 amp / 917 watt
Recommended OilNMMA Certified FCW 25W-40 Synthetic Blend
Engine Control SystemPCM 09 with SmartCraft CAN capability OBD-M diagnostics Dual oxygen sensors
Fuel Delivery SystemMulti-point Electronic Fuel Injection (MPI)
Water Drain SystemSingle point manual drain
Exhaust SystemIron manifolds with electro-deposition paint coated dry joint exhaust elbow
Displacement (L)4.3
Dimensions (L x W x H)28 x 30 x 22" / 696 x 740 x 559 mm
Compatible drivesAlpha
Recommended FuelUnleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
HP / kW180 / 134
Air Induction SystemTwo-piece long runner intake with 75 mm throttle body (80 mm w/DTS)
Weight (engine only)775 lbs / 352 kg