🔧 Spare Parts We Supply for M25 Series

Yalova Marine Services supplies a complete range of OEM-quality and high-grade alternative spare parts for all MaK M25 series engines, including M25C, M25E, and M25DF models.
Most parts are available from European stock and can be class-approved prior to shipment.

Main Spare Parts We Supply:
Cylinder Head | Piston | Piston Rings | Connecting Rod | Cylinder Liner | Water Guide Jacket | Bearings | Bushings | Sleeves | Fuel Pumps | Injectors | Turbocharger Components | Filters | Gaskets | Camshaft | Crankshaft | Engine Frame | Vibration Damper

All components conform to OEM standards, tested and certified for marine operation.

🌍 Why Choose Yalova Marine Services

• European stock availability for urgent deliveries

• OEM-standard, class-approved parts

• Fast global logistics and technical consultation

• Proven experience in MaK marine engines and overhauls

The MaK M25 series is a medium-speed, four-stroke diesel engine developed by Caterpillar Motoren (MaK) for marine propulsion and auxiliary power generation.
Renowned for its robust construction, fuel efficiency, and outstanding reliability, the M25 series is one of the most proven engine platforms in the marine sector, serving vessels of all sizes and types around the world.

✅ Key Technical Specifications

• Cylinder Bore: 255 mm

• Piston Stroke: 400 mm

• Engine Speed: 720–750 rpm (depending on version)

• Power Output: Approx. 290–330 kW per cylinder

• Total Output Range: 1,740 – 2,970 kW (6 – 9 cylinders)

• Engine Configurations: Inline (6M25C, 8M25C, 9M25C) and upgraded M25E models

• Fuel Compatibility: HFO (Heavy Fuel Oil), MDO, MGO – and dual-fuel (M25DF) options

• Emission Compliance: IMO Tier II / Tier III (with SCR or EGR technology)

⚙️ Engine Features and Benefits

High Efficiency:
Optimized combustion and long-stroke design ensure low specific fuel consumption and reduced CO₂ emissions.

Compact and Durable:
A rigid engine block with vibration-damping design provides excellent structural strength and smooth operation.

Easy Maintenance:
Standardized components and modular assembly simplify service work and minimize downtime.

Fuel Flexibility:
Compatible with various marine fuels and adaptable for dual-fuel (DF) operation.

Long Service Life:
Proven reliability in continuous marine service and low lifecycle costs make it a dependable choice for shipowners.

🚢 Applications of the MaK M25 Series

• Marine Propulsion: Cargo vessels, tankers, ferries, and offshore support ships

• Auxiliary Power: Generator sets for main and emergency operation

• Industrial Use: Stationary and hybrid energy systems