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Mercury MerCruiser 8.2L 425HP Inboard

Mercury MerCruiser 8.2L 425HP Inboard - Proven technology, rock-solid reliability and an unbeatable combination of performance and fuel efficiency.

HP / kW
  • 425 / 317
Maximum RPM (WOT
  • 4400-4800
Displacement (L)
  • 8.2
Engine Type
  • V8
Bore & Stroke
  • 4.47 x 4.00" / 113.5 x 101.6 mm
Fuel Requirement
  • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
Engine Control System  
Fuel Delivery System
  • Multi-point Electronic Fuel Injection (MPI) Sequential Fuel Injection with DTS
Starting  
Air Induction
  • High inertia induction system
Ignition
  • Distributorless ignition with knock control
Alternator amp / Watt
  • 65 amp / 917 watt
Water Drain System
  • Single point air actuated
Exhaust System
  • Tuned runner exhaust manifolds with 316 stainless steel tubular dry joint elbows
Cooling System
  • Brass sea water pump Closed cooling Long life 5-year antifreeze
Lubrication System  
Recommended Oil
  • NMMA Certified FCW 25W-40 Synthetic Blend
Engine Guardian System
  • SmartCraft Engine Guardian
Gear shift  
Transmission and Ratio
  • ZF 63A Down Angle
  • ZF 63IV V-Drive
Dimensions (LxWxH) in
  • 35 x 33 x 24" / 878 x 838 x 610 mm
Weight (engine only)
  • 990 lbs / 449 kg

Engine 1

Engine Make Mercury
Horse Power 425