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Mercruiser 3.0L MPI 135HP Sterndrive Engine

  • Mercruiser 3.0L MPI 135HP Sterndrive Engine
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Product Description

One of the most popular sterndrives on the planet

The ideal propulsion choice for runabouts up to 19 feet


* Easy to maintain: Color-coded service points help you locate and check fluids faster. Easy access is ensured by the front-mounted dipstick and oil fill, not to mention a spin-on oil filter. Mercury’s SmartCraft® system communicates all critical engine functions to the helm, putting you in complete control.
* Durable: This high-displacement engine has a cast-iron block for rugged longevity. Mercury’s exclusive Engine Guardian system senses any potential problems and instantly takes action to prevent engine or drive damages from low oil pressure, low drive lubricant or overheating.
* Fuel-Efficient: Sequential multi-port fuel injection precisely meters the air-to-fuel ratio, ensuring efficient operation any time the engine is running. The Emissions Control Technology (ECT) system works in tandem with the CPU to keep emissions in check. The result is better gas mileage and longer range.
* Reliable: The 3.0L is known for quick, easy starting – regardless of air temperature – as well as smooth idling and excellent throttle response. The high-output alternator, which produces 65 amps at maximum rpm and 38 amps at idle, provides battery charging on demand.


* HP / kW: 135 / 99.3
* Maximum RPM (WOT): 4400 - 4800
* Engine type: Inline 4
* Displacement (L): 3
* Bore and stroke: 4.00 x 3.60 in. / 101 x 91 mm
* Compression ratio: 9.3:1
* Recommended fuel: Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
* Engine control system: PCM 09 with SmartCraft CAN capability OBD-M diagnostics Dual oxygen sensors
* Fuel delivery system: Multi-point Electronic Fuel Injection (MPI)
* Air induction: Single piece iron intake with 56mm throttle body
* Ignition: Crank fired high voltage switch with knock control
* Alternator amp / Watt: 65 amp / 917 watt
* Water drain system: EZ Water Drain
* Exhaust system: Electro-deposition paint coated iron manifold with dry joint elbow
* Cooling system: Raw water
* Accessory drive system: Serpentine belt
* Recommended oil: NMMA Certified FCW 25W-40 Synthetic Blend
* Engine guardian system: Knock control, Low drive lubricant, Low oil pressure, Low voltage, Low water pressure, Over-rev
* Dimensions (L x W x H): 29 x 26 x 21 in. / 730 x 660 x 533 mm
* Weight (engine only): 515 lb. / 234 kg
* Compatible drives: Alpha


Engine Type : Inline 4
Horsepower : 135 hp (99.3 kW)
Bore x Stroke : 4.00 x 3.60 in. (101 x 91 mm)
Displacement : 3 L
Compression Ratio : 9.3:1


Length : 29 in. (730 mm)
Width : 26 in. (660 mm)
Height : 21 in. (533 mm)
Weight : 515 lb. (234 kg)


Full Throttle Operating Range : 4400 - 4800 rpm
Fuel Induction : Multi-point Electronic Fuel Injection (MPI)
Alternator : 65 amp / 917 watt
Cooling : Raw water
Warranty : 3 Year Corrosion, 2 Year Limited

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