Description
Overview
The Shire 45 Keel Cooled Marine Diesel Engine is one of the most popular propulsion solutions for inland waterway vessels and commercial marine applications. Designed to deliver dependable performance under continuous operation, this engine combines proven diesel technology with modern marine engineering.
Producing 45 horsepower at 2800 RPM, the engine provides excellent torque characteristics and fuel efficiency while maintaining smooth and reliable operation. Its keel-cooled configuration makes it particularly attractive for vessels operating in environments where low maintenance and long-term reliability are essential.
Supplied as a complete package, the Shire 45 reduces installation complexity and provides boat owners with a fully integrated propulsion solution.
Applications and Vessel Compatibility
The Shire 45 Marine Diesel Engine is suitable for a wide range of marine vessels.
Common applications include:
- Narrowboats
- Canal boats
- Inland waterway cruisers
- Workboats
- Utility vessels
- River cruisers
- Commercial barges
- Houseboats
- Marine repower projects
- Leisure craft
Its strong torque output and economical operating characteristics make it particularly effective for vessels that spend extended periods cruising at moderate engine speeds.
Keel Cooling System Benefits
The keel-cooled design is one of the major advantages of the Shire 45.
Unlike raw-water-cooled engines, a keel-cooled system circulates coolant through external cooling pipes mounted on the hull, reducing exposure to debris and contaminants.
Benefits include:
- Reduced maintenance requirements
- Improved reliability
- Lower risk of blockages
- Enhanced cooling consistency
- Extended engine life
- Simplified servicing
These advantages make the Shire 45 particularly suitable for inland waterways and commercial marine environments.
Four-Cylinder Diesel Performance
At the heart of the Shire 45 Keel Cooled Engine is a durable 2.2-liter four-cylinder diesel engine engineered for marine propulsion.
Performance benefits include:
- Strong low-speed torque
- Smooth power delivery
- Reliable cruising performance
- Fuel-efficient operation
- Reduced vibration levels
- Long-term durability
The engine’s torque characteristics make maneuvering easier while providing dependable propulsion under varying load conditions.
Its balanced four-cylinder design also contributes to improved onboard comfort and smoother operation.
Complete Marine Propulsion Package
The Shire 45 Marine Diesel Engine Package is supplied with several key components to simplify installation and operation.
Included equipment includes:
- PRM150 marine gearbox
- Heavy-duty engine rails
- Flexible engine mounts
- Low-noise air silencer
- Air filtration system
- Fuel filter with water drain tap
- Marine control panel
- Tachometer
- Hour meter
- Engine alarm system
This comprehensive package helps reduce installation time while ensuring compatibility between major propulsion components.
PRM150 Marine Gearbox Integration
The supplied PRM150 marine gearbox is a proven transmission solution widely used in inland and commercial marine applications.
Advantages include:
- Smooth gear engagement
- Reliable torque transfer
- Long service life
- Proven marine durability
- Easy maintenance
- Excellent compatibility with diesel propulsion systems
The gearbox works seamlessly with the Shire 45 engine to provide dependable propulsion and efficient power delivery.
Reliability and Ease of Maintenance
The Shire 45 Marine Diesel Engine has been developed with serviceability and long-term ownership in mind.
Key maintenance advantages include:
- Accessible service points
- Simplified fuel system maintenance
- Durable cooling configuration
- Reliable electrical starting system
- Heavy-duty engine construction
- Long operating life
These characteristics help minimize downtime and support dependable operation throughout the engine’s service life.
For commercial operators and private owners alike, reliability remains one of the engine’s strongest selling points.
Technical Specifications
The Shire 45 Keel Cooled Marine Diesel Engine is powered by a 2.2-liter four-cylinder diesel engine producing 45 horsepower (33 kW) at 2800 RPM. The engine utilizes a freshwater keel cooling system designed for dependable operation and reduced maintenance requirements.
The package includes a PRM150 marine gearbox, heavy-duty mounting rails with flexible mounts, low-noise air intake components, fuel filtration system, and a complete control panel featuring a tachometer, hour meter, and engine alarm system.
The engine is equipped with electric starting and is supplied as a complete marine propulsion package suitable for inland waterway vessels, workboats, and marine repower projects.
Product Support and Parts Availability
Owners of the Shire 45 Keel Cooled Marine Diesel Engine benefit from access to service documentation, maintenance support, replacement parts availability, and technical assistance.
The engine is supported by a range of compatible marine propulsion accessories, control systems, cooling components, and replacement service parts.
Customers can also explore related marine diesel engines, PRM gearboxes, propulsion components, and marine accessories to support complete vessel propulsion systems.
Frequently Asked Questions
How much power does the Shire 45 produce?
The Shire 45 delivers 45 horsepower (33 kW) at 2800 RPM, providing dependable propulsion for inland and commercial marine applications.
What type of cooling system does the engine use?
The engine utilizes a freshwater keel cooling system, reducing maintenance requirements and improving long-term reliability.
Is a gearbox included with the engine?
Yes. The package includes a PRM150 marine gearbox as standard.
What vessels is the Shire 45 suitable for?
The engine is ideal for narrowboats, canal boats, inland cruisers, workboats, utility vessels, and marine repower projects.
Does the package include instrumentation?
Yes. A complete control panel with tachometer, hour meter, and engine alarm system is included.
Is the engine supplied with mounts?
Yes. Heavy-duty rails and flexible engine mounts are supplied as part of the package.
Why choose the Shire 45 Marine Diesel Engine?
Its combination of 45 horsepower, keel cooling, PRM gearbox integration, fuel efficiency, durability, and complete installation package makes it a highly regarded propulsion solution for inland waterway vessels.
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