Engine - Mercruiser NEW, 3.0L, MPI, ECT, Alpha (#MercBob-30LMPIECT-A)
PRICE:
$6,095.00
Part #: MercBob-30LMPIECT-A
This product is no longer available.

A new 3.0L MPI Mercruiser fuel injected bobtail marine engine with catalyst system to be used with an Alpha sterndrive.
RELIABILITY
- 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
PERFORMANCE
- 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
EASY OWNERSHIP
- 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
TECHNOLOGY
- 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
For factory installed engine options, see the table below.
Click here to go to the shim kit that is necessary to mount all new Mercruiser bobtail engines.
An adapter is required when repowering a boat and replacing an engine that had the old style 10 pin connector used up through approximately 2006. Click here to go the adapter.
Specifications | |
Power | 135HP (101 KW) |
Full Throttle Range | 4400 - 4800 RPM |
Displacement | 181 CID (3.0L) |
Engine Type | I4 |
Bore & Stroke | 4.00" X 3.60" (101mm X 91mm) |
Compression Ratio | 9.3:1 |
Fuel Requirement | 87 Octane (R+M)/2 |
Engine Control System | PCM 09 w/SmartCraft CAN Capability, OBD-M Diagnostics, (2) O2 Sensors |
Fuel System | Dual Pump Water-Cooled Module with Water Separating Fuel Filter |
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 w/ ECT | EDP coated iron manifold and elbow |
Cooling System | Thermostatically Controlled, Raw Water |
Accessory Drive System | V-Belt |
Recommended Engine Oil | MerCruiser Full Synthetic Engine Oil - SAE 20W-40 |
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 | |
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 |
ECT Catalyst | STD |
Options | |
Alpha Counter Rotation | MercOptACR-1 |
Fresh Water Cooling | MercOptFWC-1 |
Power Steering | MercOpt-PST-1 |
Go here to see our Mercruiser sterndrive rigging.
This engine comes with a limited 3 year corrosion warranty.
Select the following link to add the required Mercruiser Refundable Container Deposit to your cart. This Product/Container Deposit must be added to your cart when purchasing any Mercruiser Engine or Engine Package products. This deposit will be refunded after the container is returned back to Mercruiser at their expense.
For Hawaii, Alaska, or international shipping prices, please call.
Specifications and prices are subject to change without notice.