Yanmar 4TNV88 engine for Yanmar VIO45-6A VIO50U VIO50-6A VIO55-5A VIO55-6A mini excavator
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+86 199 2461 6345
China
China
Netherlands, Dieren
Netherlands, Dieren
Netherlands, Dieren
Netherlands, Dieren
Netherlands, Dieren
Netherlands, Dieren
Netherlands, Dieren
Poland, Strawczyn
Netherlands, Dieren
France, Brie-Comte-Robert
Netherlands, Dieren
Netherlands, Dieren
Netherlands, Dieren
Netherlands, Dieren
Netherlands, Dieren
Netherlands, Dieren
Turkey, Adana
Netherlands, Dieren
1. Application Compatibility
This engine is the primary power source for Yanmar’s mid-sized ViO series:
Yanmar ViO Series: ViO45-5B, ViO45-6A, ViO50U, ViO50-6A, ViO55-5A, ViO55-6A
Other Brands: Also widely used in Kobelco (SK45SR, SK55SR), Landini tractors, and various industrial power generators.
2. Technical Specifications
Engine Model: Yanmar 4TNV88-PBV / 4TNV88-Z
Type: 4-Cylinder, 4-Cycle, Liquid-Cooled Diesel
Aspiration: Naturally Aspirated
Bore x Stroke: 88 mm x 90 mm
Displacement: 2.189 Liters
Rated Output: 26.0 - 30.0 kW (Approx. 35 - 41 HP @ 2200-2400 RPM)
Emission Class: EPA Tier 4 Final / EU Stage V (Model dependent)
Combustion System: Direct Injection (DI)
Lubrication: Forced lubrication via gear pump
3. Key Engineering Advantages
Optimized for ViO Series: Features a specialized low-profile cooling system and exhaust configuration to fit the tight "Zero Tail Swing" radius of the ViO55-6A without causing heat buildup.
Direct Injection Power: The DI system provides high breakout force and fast cycle times, ensuring the machine maintains hydraulic performance under heavy loads.
Fuel Economy: Precise fuel delivery reduces consumption and minimizes exhaust smoke, making it suitable for urban construction sites with strict environmental regulations.
Quiet Technology: Engineered with a noise-dampening cylinder block and balanced internal components to reduce the sound levels in the operator's cab.
4. Supply Scope for Parts
Engine Assemblies: Brand new original engines, fully remanufactured (overhauled) units, and tested used engines.
Overhaul Kits: Pistons, piston rings, cylinder liners, and main/connecting rod bearings.
Gasket Sets: Complete engine gasket kits, including the cylinder head gasket and valve stem seals.
Fuel & Cooling: Injection pumps, fuel injectors, water pumps, thermostats, and oil coolers.
Electrical: 12V Starters, alternators, and engine stop solenoids.
Service Support: 1-year quality warranty on new components and fast global express shipping (DHL, UPS, FedEx).