Volvo Penta D2-50 MS25L Marine Diesel Engine, 50 HP

The Volvo Penta D2-50 MS25L is a 2.2-liter in-line 4-cylinder, naturally aspirated marine diesel rated 50 hp (37 kW) at 3,000 RPM. It has a mechanical cam-driven in-line injection pump and freshwater cooling with a heat exchanger.

The cast-iron engine block, dynamically balanced construction and rubber engine mounts keep vibration low and cruising quiet, which suits cruising sailboats and small motor vessels. Strong low-RPM torque helps with marina maneuvering, docking and head winds.

A high-output alternator of up to 115 A supports onboard systems such as refrigeration, navigation electronics and lighting. Standard freshwater cooling limits internal corrosion and keeps operating temperatures consistent, including in saltwater.

Highlights

• 50 hp (37 kW) at 3,000 RPM

• 2.2 L in-line 4-cylinder, naturally aspirated

• Mechanical in-line injection pump

• Freshwater cooled with heat exchanger

• Alternator output up to 115 A

• For sailboats and small motor vessels

Specifications

Good to know

• Installation, rigging and commissioning by a qualified marine technician are recommended; follow the manufacturer's pre-delivery and break-in procedures.