Mercury MerCruiser
377 MAG (2008)
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Mercury MerCruiser 377 MAG (2008) Mercury MerCruiser 377 MAG (2008)
Mercury MerCruiser's 377 MAG engine features a long stroke 4340 crankshaft and custom ground cam for big-boat power in a lightweight package.

Key Features

  • ECM 555 fuel and ignition system along with platinum-tipped spark plugs ensure reliable starts and outstanding performance, year after year.
  • Exclusive Engine Guardian protection senses potential problems and virtually eliminates the chance for engine damage due to overheating, low oil press
  • Dry-joint exhaust eliminates the chance for water to enter engine through leaky gaskets.
  • Water-separating fuel filter helps protect fuel system and engine against damage.
  • Proven GM cast iron block V8 power for years of reliable operation.
  • Brass sea water pump housing improves life and better resists damage from running dry.
  • Ceramic coated exhaust elbows better resist high temperature and corrosion.


Mercury MerCruiser 377 MAG (2008) (Inboard) Specifications
Horsepower 320-hp
Warranty 3 Years
Displacement (cu/cc) 377.00 cu / 6,177.92 cc
Number of Cylinders 8 Cylinders
Configuration V8
Fuel Delivery Fuel Injected
Cooling System Raw Water
Weight (lbs/kg) 993.00 lbs / 450.42 kg
Charging System 65 A
Length/width/height 32 in / 30 in / 22 in
Full Throttle RPM 5200

Photo Gallery

Engine Image

Mercury MerCruiser 377 MAG (2008)


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