Description
The SHIRE 40 Workboat Engine 40HP is designed for marine users who need dependable propulsion for everyday tasks. It delivers consistent diesel performance in a compact format, making it suitable for vessels that operate in controlled or inland environments.
This 40HP marine diesel engine is built with a focus on practicality rather than excess power. It provides enough output for steady movement, controlled handling, and reliable operation, especially in workboat and utility applications.
Its design reflects the needs of operators who rely on their engines daily, where reliability and efficiency matter more than high-speed performance.
Smooth and quiet in operation with unmatched reliability, all Shire engines are built to the highest quality standards laid down by ISO9001-2015. Extensively tested by dynamometers in our state-of-the-art Dyno test facilities, the engines are run in and full delivery inspection is carried out before dispatch to the customer. Barrus has a wealth of experience in custom building engines for specific end-uses, including the RNLI, MoD Navy, MoD Army, MoD Special Forces, HM Coastguard and most other professional users. The same exacting standards demanded by these organisations are built into every Shire engine.
Specifications
4 Cylinder Propulsion Engine
Yanmar 4TNV Base Engine
40 hp @ 2600 rpm
Displacement 2190 cc
250 hour oil and filter change period
PRM150 Hydraulic gearbox
50 amp 12V alternator
Fully dyno tested
Control panel with warning lights
3 Year Warranty on engine and components
1 Year Warranty on all electrical components
Accessories Included
Remote coolant header tank
Flexible fuel line (2 x 1m)
Diesel fuel filter / water separator
Electric fuel lift pump
Engine oil
Engine coolant / anti-freeze
Stainless steel water injection exhaust elbow
Where This Engine Performs Best
The SHIRE 40 Workboat Engine 40HP is best suited for smaller vessels that operate in calm or inland waters.
It is commonly used in:
- Canal boats
- Workboats
- Inland utility vessels
- Small fishing boats
- River and harbor craft
This marine diesel engine performs well in applications that require steady propulsion rather than high-speed output. It is ideal for environments where control, maneuverability, and consistent operation are important.
Its compact size also makes it suitable for installations where space is limited.
Built for Reliable Marine Operation
Marine engines used in workboats must handle long hours and repeated use, and the SHIRE 40 Workboat Engine 40HP is built with that in mind.
It offers:
- Durable construction for continuous operation
- Stable diesel performance under regular load
- Efficient fuel consumption for cost control
- Reliable output for daily marine use
This 40HP marine diesel engine is designed to operate consistently without unnecessary complexity. Its diesel configuration supports long-term use and dependable performance across various working conditions.
For operators who depend on their vessel every day, this level of reliability is essential.
What Makes This Engine a Smart Choice
The SHIRE 40 Workboat Engine 40HP stands out because it focuses on practical marine needs.
Key benefits include:
- Reliable power for workboat applications
- Efficient fuel usage for extended operation
- Compact design for easy installation
- Consistent performance under load
- Suitable for inland and controlled environments
This marine diesel engine is not designed for high-speed performance but for steady, reliable operation. That makes it a strong option for buyers who need an engine that works consistently without added complexity.
Who This Engine Is Best For
The SHIRE 40 Workboat Engine 40HP is ideal for users operating small vessels that require dependable propulsion.
It is best suited for:
- Workboat operators
- Canal and inland boat owners
- Small-scale fishing operators
- Marine professionals handling utility vessels
- Buyers replacing older low-horsepower engines
This 40HP marine diesel engine is particularly useful for applications where steady performance and fuel efficiency are more important than speed.
Key Specifications Explained Simply
The SHIRE 40 Workboat Engine 40HP delivers approximately 40 horsepower, making it suitable for small marine vessels and workboat applications.
It operates on diesel fuel, which provides efficient performance and supports longer operating periods. This makes it a practical choice for daily marine use where fuel economy and reliability are important.
Its compact design allows it to fit into smaller engine compartments, while still delivering the power needed for steady propulsion.
This marine diesel engine is built to provide consistent output and long-term durability in controlled marine environments.
Buying with Confidence
Choosing the SHIRE 40 Workboat Engine 40HP means selecting a practical and dependable marine propulsion solution.
This marine diesel engine is suitable for both recreational and light commercial use, particularly in inland and controlled water conditions. Buyers can also explore related marine diesel engines within the same category to compare horsepower options and find the best fit for their vessel.
Selecting the right engine ensures efficient operation and long-term reliability.
Frequently Asked Questions
What type of boats is this engine suitable for?
The SHIRE 40 Workboat Engine 40HP is suitable for small boats such as canal boats, workboats, and inland utility vessels.
Is 40HP enough for a workboat?
Yes, a 40HP marine diesel engine is typically sufficient for small workboats and inland vessels that require steady propulsion rather than high speed.
Is this engine fuel efficient?
Yes, diesel engines like this one are designed for efficient fuel consumption, making them suitable for regular use.
Can it be used for commercial purposes?
Yes, the SHIRE 40 Workboat Engine 40HP is suitable for light commercial applications, especially in inland waterways.
Is it suitable for offshore use?
This marine diesel engine is best suited for inland and controlled water environments rather than offshore conditions.

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