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Mercury® MerCruiser®
4.3L

Fly Out of the Gate

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

See All Models and Specs

Total Versatility.

Total Versatility.

Alpha® or Bravo® drive? Single or twins? MPI or carb? 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.

Durable.

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.

Smooth Running.

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.

Specifications

Mercury® MerCruiser®: 4.3L

  • HP / kW
    • 220 / 164
    Maximum RPM (WOT)
    • 4400-4800
    Engine type
    • V-6
    Displacement (L)
    • 4.3
    Bore and stroke
    • 4.00 x 3.48 / 101 x 88 mm
    Compression ratio
    • 9.4:1
    Fuel requirement
    • Unleaded 91 RON Minimum
    Fuel delivery system
    • Multi-point Electronic Fuel Injection (MPI)
    Air induction
    • Two-piece long runner intake with 75 mm throttle body (80 mm w/DTS)
    Ignition
    • Crank fired high voltage switch with knock control
    Alternator amp / Watt
    • 65 amp / 917 watt
    Water drain system
    • Single point manual drain (Alpha)
    • Three-point manual (Bravo)
    Exhaust system
    • Iron manifolds with electro-deposition paint coated dry joint exhaust elbow
    Cooling system
    • Raw water
    • Thermostatically controlled
    Accessory drive system
    • Serpentine belt
    Recommended oil
    • NMMA Certified FCW 25W-40 Synthetic Blend
    Engine guardian system
    • High coolant temperature
    • Knock control
    • Low drive lubricant
    • Low oil pressure
    • Low voltage
    • Over-rev
    Dimensions (L x W x H)
    • 28 x 30 x 22" / 696 x 740 x 559 mm
    Weight (engine only)
    • 725 lbs / 329 kg
    Compatible drives
    • Alpha
    • Bravo One
    • Bravo Three
    • Bravo Two
    Print Compare With Other Products Request a Quote
  • HP / kW
    • 190 / 140
    Maximum RPM (WOT)
    • 4400-4800
    Engine type
    • V-6
    Displacement (L)
    • 4.3
    Displacement (CID/L)
    • 262
    Recommended fuel
    • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
    Fuel ethanol tolerance
    • Up to 10%
    Fuel delivery system
    • 2V carb with turn-key start and electric fuel pump
    Water drain system
    • Multi-point drain
    Cooling system
    • Thermostatically Controlled Raw Water - 143F
    Accessory drive system
    • Serpentine belt
    Recommended oil
    • NMMA Certified FCW 25W-40 Synthetic Blend
    Engine guardian system
    • High coolant temperature
    • Low drive lubricant
    • Low oil pressure
    • SmartCraft Engine Guardian
    Weight (engine only)
    • 725 lbs / 329 kg
    Compatible drives
    • Alpha
    • Bravo One
    • Bravo Three
    • Bravo Two
    Print Compare With Other Products Request a Quote
  • HP / kW
    • 180 / 134
    Maximum RPM (WOT)
    • 4400-4800
    Engine type
    • V-6
    Displacement (L)
    • 4.3
    Bore and stroke
    • 4.00 x 3.48 / 101 x 88 mm
    Compression ratio
    • 9.4:1
    Fuel requirement
    • Unleaded 91 RON Minimum
    Fuel delivery system
    • Multi-point Electronic Fuel Injection (MPI)
    Air induction
    • Two-piece long runner intake with 75 mm throttle body
    Ignition
    • Crank fired high voltage switch with knock control
    Alternator amp / Watt
    • 65 amp / 917 watt
    Water drain system
    • Single point manual drain
    Exhaust system
    • Iron manifolds with electro-deposition paint coated dry joint exhaust elbow
    Cooling system
    • Raw water
    Accessory drive system
    • Serpentine belt
    Recommended oil
    • NMMA Certified FCW 25W-40 Synthetic Blend
    Engine guardian system
    • High coolant temperature
    • Knock control
    • Low drive lubricant
    • Low oil pressure
    • Low voltage
    • Over-rev
    Dimensions (L x W x H)
    • 28 x 30 x 22" / 696 x 740 x 559 mm
    Weight (engine only)
    • 775 lbs / 352 kg
    Compatible drives
    • Alpha
    Print Compare With Other Products Request a Quote
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