MerCruiser 2.8 Diesel Engine

The MerCruiser 2.8 Diesel is a compact, efficient, and reliable marine diesel engine designed to deliver strong performance with excellent fuel economy for a wide range of recreational and light commercial boats. Known for its smooth operation and durability, this engine is well suited for boat owners seeking dependable diesel power in a compact package.

Engine Design & Construction

The MerCruiser 2.8 Diesel features a 4-cylinder, 4-stroke inline diesel configuration with direct fuel injection, providing efficient combustion and consistent power output. Its robust engine block and marine-grade components are engineered to withstand harsh marine environments, ensuring long service life and dependable operation.

The compact design allows easy installation in limited engine compartments, making it an ideal choice for repower projects as well as new boat builds.

Performance & Efficiency

Delivering balanced power and strong mid-range torque, the MerCruiser 2.8 Diesel offers smooth acceleration and responsive throttle control. Diesel efficiency translates into lower fuel consumption and longer cruising range compared to gasoline engines of similar output.

The engine is designed for quiet and low-vibration operation, enhancing onboard comfort during cruising and extended operation.

Cooling & Reliability

Equipped with a freshwater cooling system and heat exchanger, the MerCruiser 2.8 Diesel maintains optimal operating temperatures while protecting internal components from corrosion. This cooling setup improves reliability and reduces maintenance demands in both saltwater and freshwater applications.

Marine Integration & Compatibility

The MerCruiser 2.8 Diesel is compatible with MerCruiser sterndrive systems, providing seamless integration with existing propulsion components. Its dependable power delivery makes docking, maneuvering, and cruising smooth and predictable.

Maintenance & Serviceability

Designed with service access in mind, the engine features easily reachable filters and service points, simplifying routine maintenance. Backed by MerCruiser established support network, parts availability and technical service are widely accessible.

Ideal Applications

The MerCruiser 2.8 Diesel Engine is ideal for:

Cruisers and recreational boats
Coastal and inland waterway vessels
Light commercial and utility boats
Repower and replacement installations

Key Advantages

Compact and efficient marine diesel design
Excellent fuel economy and cruising range
Smooth and low-vibration operation
Freshwater cooling with heat exchanger
Compatible with MerCruiser sterndrive systems
Proven reliability and durability

Technical Specifications

General

Model: MerCruiser 2.8 Diesel
Engine Type: 4-stroke, water-cooled marine diesel
Fuel System: Direct fuel injection
Aspiration: Naturally aspirated
Number of Cylinders: 4 inline

Displacement & Combustion

Displacement: Approx. 2.8 liters
Bore × Stroke: Approx. 94 mm × 100 mm
Combustion System: Direct injection diesel

Performance

Rated Power Output: Approx. 165 HP @ 3,800 RPM
Maximum Engine Speed: Approx. 3,800 RPM
Torque Characteristics: Strong mid-range torque for smooth cruising
Fuel Consumption: Efficient diesel fuel usage (varies by load and drive setup)

Cooling & Lubrication

Cooling System: Freshwater cooling with heat exchanger
Lubrication System: Forced lubrication with oil cooler
Engine Oil Capacity: Approx. 7.0 liters
Recommended Oil Type: Marine-grade diesel engine oil

Electrical System

Starting System: 12 V electric start
Alternator: 12 V marine alternator

Dimensions & Weight

Overall Dimensions (L × W × H): Approx. 900 × 650 × 750 mm
Dry Weight: Approx. 400–430 kg (engine only, excluding sterndrive)

Drive & Installation

Rotation (Crankshaft): Counter-clockwise (viewed from flywheel end)
Drive Type: Sterndrive
Compatible Drives: MerCruiser sterndrive systems
Mounting: Marine-grade flexible engine mounts

Service & Adjustment

Valve Train: Overhead valve (OHV)
Firing Order: 1 – 3 – 4 – 2
Maintenance Access: Designed for easy access to filters, belts, and service components

MerCruiser 2.8 Diesel

Mercruiser 2.8 Diesel For Sale