Mercury Mercruiser Engines

Multiport Fuel Injection 3.0 MPI - 135 hp

Rated at 135 hp, the new 3.0 MPI Emissions Control model features electronic Multiport Fuel Injection (MPI) and a three-way catalytic converter to provide excellent performance while producing extremely low emissions levels that meet California 4-Star Super Ultra-Low emissions requirements. The 3.0 MPI features our new PCM09 Electronic Control Module to control ignition, fuel injection and a number of exclusive SmartCraft features like the intelligent Engine Guardian system.

   Mercury Mercruiser Marine Engines Multiport Injection 3.0 MPI - 135 hp


  • GM cast iron base engine with single-piece intake/exhaust manifold for long life and proven durability
  • PCM09 control module controls Multi-Port Fuel Injection, High-Energy Ignition, Engine Guiardian® and enables optional SmartCraft gauges and displays
  • Exclusive Engine Guardian protection senses potential problems and virtually eliminates the chance for engine or drive damage due to overheating, low oil pressure or
  • low drive lubricant
  • Standard On-Board Diagnostics (OBD-M) allow technicians to access engine operating history for quick diagnosis and repairs
  • Spin-on water separating fuel filter helps protect engine and fuel system from damage
  • Dry-joint exhaust system helps prevent damaging water from reaching critical internal engine components
  • Metal substrate catalytic converter to better resist vibration and potential exposure to moisture in harsh marine environments


  • Tuned intake manifold design with 56mm throttle body provides excellent torque and horsepower for demanding marine applications
  • Multi-Port Fuel Injection provides easy starts – cold or hot – and automatically adjusts for changes in temperature, weather and altitude for maximum performance in any environment
  • High energy distributorless ignition for quick starts and maximum power
  • Low-restriction flame arrestor for added horsepower and torque
  • Standard anti-feedback power steering provides a large reduction in steering effort and provides enhanced control at all boat speeds


  • Convenient combination water drain and flush system makes periodic maintenance more efficient and allows boaters to extend their boating season into the cooler months without worrying about potential freeze damage
  • The 3.0 MPI operates best on easy-to-find and less expensive 87 octane gasoline
  • One-year/100-hour service intervals (see owner’s manual for specific details) for engine oil and drive lubricant
  • Three-year/300-hour maintenance interval for many periodic service items means less time servicing, more time on the water
  • Color-coded service points make checking and adding fluids simple and clear
  • Easy-access spin-on oil filter makes routine oil changes easier than ever
  • Drive lubricant monitor warns of low fluid level and triggers Engine Guardian® protection
  • Permalube® U-joints and sealed gimbal bearing are virtually maintenance-free
  • The 3.0 MPI Alpha drive utilizes self-lubricating bushings, eliminating grease fittings and lubrication points for simplified maintenance


  • PCM09 control module controls Multi-Port Fuel Injection, High-Energy Ignition, Engine Guardian? and enables optional SmartCraft gauges and displays
  • Power Trim XD? system automatically returns the drive to the water in the event that the drive impacts an underwater obstacle, allowing the operator to maintain steering control
  • Dual oxygen sensors constantly monitor air/fuel ratio for maximum performance and minimum emissions
  • California Four-Star Super Ultra Low Emissions-certified

HP/kW @ Prop 135/99.3
Max RPM (WOT) 4400-4800
Cylinders I4
Displacement (CID/L) 181/3.0
Bore & Stroke (in/mm) 4.00x3.60/101x91
Compression Ratio 9.3:1
Fuel Requirements Unleaded regular 87 octane
Engine Control System PCM 09 w/SmartCraft CAN Capability, OBD-M Diagnostics, (2) O2 Sensors
Fuel Delivery System Dual Pump Water-Cooled Module with Water Separating Fuel Filter
Fuel Injection System Multi-Port Electronic Fuel Injection
Induction System Single piece iron intake-exhaust manifold w/56mm throttle body
Ignition System Distributorless ignition with knock control
Charging System 65 amp/917 watt alternator
Water Drain System Quick-Disconnect Drain Hoses with Flush Feature
Exhaust System EDP coated iron manifold w/ dry-joint elbow
Cooling System Thermostatically controlled, raw water
Accessory Drive System V-Belt
Recommended Engine Oil Mercury MerCruiser Full-Synthetic Engine Oil, 20W-40, NMMC FC-W rated
Engine Guardian System Low Oil Pressure, High Coolant Temperature, Low Seawater Pressure, Low Drive Lubricant, Low Voltage, Over-Rev Control
Dimensions (LxWxH) in  
Dimensions (LxWxH) mm  
Alpha Ratios 2.0, 2.40 (H)
Bravo One Ratios N/A
Bravo Two Ratios N/A
Bravo Three Ratios N/A
Weight w/Alpha (lbs/kg) 695/315
Weight w/Bravo One (lbs/kg) N/A
Weight w/Bravo Two (lbs/kg) N/A
Weight w/Bravo Three (lbs/kg) N/A
Optional Freshwater Cooling Available
Digital Throttle & Shift N/A

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Bullock Marine offers new & used powerboats as well as performance boat accessories: skater, fountain, eliminator, Mercruiser Mercury Marine (competition - racers & performance propellers, Zero Effort Controls™, K-Plane™ high performance trim tabs, Mercury Racing Trim Indicators™, high performance engines, competition drive, etc.) cigarette boat, welcraft, scarab, donzi boats, catamaran raceboat, high speed twin hull, etc. Bullock Marine is an authorized dealer for Douglas Marine Skater Powerboat, Regy Fountain powerboat & sport boat, Eliminator powerboat & sport boat, and Mercury Mercruiser marine engines, Drive & accessories. Mercury Mercruiser HP 1075 SCi 1075 HP marine engines racing boats Mercury Marine HP 575 SCi 575 HP Sterndrives performance boat Mercruiser HP 525 EFI 525 HP race boat engine for sale powerboats Mercury Mercruiser HP 500 EFI 500 HP stern drives power boat Mercury Marine Scorpion 377 377 HP marine engines high performance boats Mercruiser 496 MAG High Output 425 HP Sterndrives sport boat Mercury Mercruiser 496 MAG 375 HP race boat engine for sale powerboat Mercury Marine MX 6.2 MPI Horizon 320 HP stern drives performance boats Mercruiser MX 6.2 MPI 320 HP marine engines power boats Mercury Mercruiser 350 MAG MPI Horizon 300 HP Sterndrives engines Mercury Marine 350 MAG MPI 300 HP race boat engine for sale mercruiser Mercury Drive Dry-Sump Six drive racing mercruiser powerboats mercury Bravo One XR Sport Master sport boat drives sport boat V SSM drive mercury race power boats III-A SSM drives mercury mercruiser racing boats Bravo One XR drive powerboat Bravo X Diesel mercruiser drives sport boats Bravo XR mercury drive for sale power boats Bravo X drives mercruiser boats Bravo mercury drive sales pleasure Alpha drive mercruiser boat

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