Volvo Penta D2-50 MS25L marine diesel engine 50hp
$12,956.00
For buyers searching volvo penta marine diesel engines for sale, the D2-50 remains one of the most popular options in the 50 HP marine diesel class.
- Description
Description
Volvo Penta D2-50 MS25L Marine Diesel Engine 50HP For Sale | Coastal Wave Marine
Reliable 50 HP Marine Diesel Power for Sailboats & Small Commercial Vessels
The Volvo Penta D2-50 MS25L marine diesel engine 50HP for sale at Coastal Wave Marine is a proven, naturally aspirated 4-cylinder diesel designed for sailboats, displacement hulls, and light commercial applications. Known for its durability, smooth operation, and fuel efficiency, the D2-50 is a trusted choice among owners seeking dependable auxiliary power.
For buyers searching volvo penta marine diesel engines for sale, the D2-50 remains one of the most popular options in the 50 HP marine diesel class.
Engine Design & Real-World Performance
The D2-50 features a 2.2-liter inline 4-cylinder diesel engine with:
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Mechanical, cam-driven in-line fuel injection
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Naturally aspirated configuration
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Freshwater cooling system
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Robust cast-iron engine block
This design prioritizes long service life and ease of maintenance—qualities highly valued by customers comparing 50 hp marine diesel options or upgrading from smaller auxiliary engines.
Smooth, Quiet & Comfortable Operation
Thanks to its dynamically balanced construction and efficient rubber engine mounts, the D2-50 delivers:
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Low vibration levels
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Quiet cruising RPM
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Improved onboard comfort for extended passages
These features make it especially suitable for cruising sailboats and liveaboard applications.
High Marine Torque at Low RPM
Like all volvo marine diesel engines, the D2-50 delivers strong torque at low RPM. This provides confident maneuvering in marinas, strong headwinds, and tight docking situations—critical advantages over gasoline alternatives.
Efficient Electrical Charging
The D2-50 comes equipped with a high-output alternator designed to support modern onboard systems:
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Rapid battery charging at idle
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Strong output at cruising speed
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Ideal for refrigeration, navigation electronics, and onboard lighting
Freshwater Cooling for Extended Engine Life
Standard freshwater cooling minimizes internal corrosion and thermal stress, helping ensure consistent operating temperatures and long-term reliability—especially important in saltwater environments.
Position Within the Volvo Penta D2 Range
The D2-50 fits neatly between smaller auxiliary engines and higher-output models such as the volvo penta d2-55 for sale and volvo penta d2-60 price category. For buyers comparing 60 hp marine diesel engines for sale, the D2-50 offers excellent efficiency when full 60 HP output is not required.
Technical Specifications – Volvo Penta D2-50 MS25L
| Specification | Details |
|---|---|
| Engine Model | Volvo Penta D2-50 MS25L |
| Engine Type | Inline 4-cylinder marine diesel |
| Displacement | 2.2 L |
| Rated Power | 50 HP (37 kW) |
| Rated RPM | 3000 |
| Aspiration | Naturally aspirated |
| Fuel System | Mechanical in-line injection pump |
| Cooling System | Freshwater cooled / heat exchanger |
| Alternator Output | Up to 115 A |
| Emissions | IMO NOx compliant |
| Application | Sailboats, small motor vessels |
Warranty & Buyer Confidence
Factory Warranty
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Volvo Penta limited manufacturer warranty
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Covers defects in materials and workmanship
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Warranty duration varies by region and usage
Why Buy from Coastal Wave Marine
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Specialization in volvo marine engines for sale
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Verified engine sourcing and documentation
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Pre-sale application and compatibility guidance
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Support with parts, service, and logistics
Frequently Asked Questions (FAQs)
Is the Volvo Penta D2-50 suitable for sailboats?
Yes. It is one of the most commonly installed auxiliary engines for cruising and performance sailboats worldwide.
How does it compare to the D2-55 or D2-60?
The D2-50 prioritizes simplicity and efficiency, while the volvo penta d2-55 for sale and D2-60 offer higher output for heavier vessels.
Is this engine fuel-efficient?
Yes. Naturally aspirated design and low cruising RPM make it economical for long passages.
Are parts and service widely available?
Yes. Volvo Penta maintains a global service and parts network.






