Kubota V3300DI V3300 engine for Kubota KX161-3 KX163-5 U50-3 U55-4 mini excavator




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1. Application Compatibility
This engine is a primary power source for Kubota’s 5-ton to 8-ton machine class:
Kubota Excavators: KX163-5, KX161-3, U55-4, U50-3
Kubota Loaders: R520, R510
Other Equipment: Widely used in generators, forklifts, and skid steers (Bobcat S220/S250).
2. Technical Specifications
Engine Model: Kubota V3300-E / V3300-DI / V3300-T (Turbo)
Type: 4-Cylinder, 4-Cycle, Liquid-Cooled Diesel
Aspiration: Naturally Aspirated (Standard) or Turbocharged
Bore x Stroke: 98 mm x 110 mm
Displacement: 3.318 Liters
Rated Output: 43.0 - 55.0 kW (Approx. 58 - 74 HP @ 2600 RPM)
Combustion System: E-TVCS (Three Vortex Combustion System) or Direct Injection (DI)
Lubrication: Forced lubrication via gear pump
3. Key Engineering Advantages
High Torque Density: Designed to deliver maximum torque at low RPM, allowing the KX163-5 to handle tough soil conditions without engine stalling.
E-TVCS Technology: Kubota’s unique combustion system reduces exhaust emissions and noise while significantly improving fuel economy.
Enhanced Durability: Features a tunnel-series crankcase and optimized cooling channels to extend engine life during continuous high-load excavation.
Compact Profile: Fits efficiently within the tail-swing radius of the U55-4, ensuring the machine maintains its compact operational advantages.
4. Supply Scope for Parts
Engine Assemblies: New original, remanufactured, or tested used engines.
Overhaul Kits: Pistons, rings, liners, main and rod bearings, and full gasket sets.
Fuel System: Injection pumps, fuel injectors, and lift pumps.
Cooling & Electrical: Water pumps, thermostats, starters (12V/24V), and alternators.
Service Support: 1-year quality warranty and global express shipping (DHL/UPS/FedEx).