Kubota KX61-2 Mini Excavator – Parts, Specs & Serial Numbers

Description:

The Kubota KX61-2 Mini Excavator is a compact yet powerful machine engineered for versatility and reliability on small to mid-sized job sites. Designed for tight quarters, this zero-tail swing excavator delivers outstanding digging performance and efficiency, making it a favorite among contractors and landscapers.

With a robust Kubota D1703-M-DI diesel engine, responsive hydraulics, and user-friendly controls, the KX61-2 excels in trenching, backfilling, and lifting tasks. Its rugged build and smooth operation make it a long-lasting performer in any fleet.

Key Specifications & Features

Engine

• Model: Kubota D1703-M-DI

• Type: 3-cylinder, water-cooled, diesel

• Displacement: 1.647 L (100.5 cu in)

• Power: 26.5 hp (19.8 kW) @ 2400 RPM

Hydraulics

• Hydraulic Pump Flow: 11.3 + 6.6 GPM (main pump + auxiliary)

• Hydraulic Pressure: 2,629 psi (181 bar)

• Boom Swing Angle: Left 70°, Right 55°

• Auxiliary Hydraulics: Standard

Transmission & Travel

• Travel Speeds: Low – 1.5 mph | High – 2.8 mph

• Gradeability: 30°

• Swing Speed: 9.1 RPM

Dimensions

• Operating Weight: 5,551 lbs (2,518 kg)

• Max Digging Depth: 8 ft 6 in (2.6 m)

• Max Dump Height: 10 ft 1 in (3.07 m)

• Track Width: 11.8 in (300 mm)

Performance

• Bucket Breakout Force: 5,765 lbf

• Arm Digging Force: 3,308 lbf

Maintenance Essentials & Common Parts

• Hydraulic cylinder seal kits

• Rubber track replacement

• Swing motor parts

• Final drive motors

• Control valve seals & O-rings

Pro Tip:

Inspect and grease the swing bearing every 100 hours to prevent premature wear—a key factor in avoiding expensive repairs.

Common Issues & Fixes

Hydraulic Leaks

Often caused by worn cylinder seals or cracked hoses. Use hydraulic cylinder rebuild kits for quick repairs.

Drive Motor Failure

Symptoms include slow or no movement—commonly resolved by replacing or repairing the final drive motor.

Engine Starting Trouble

Check for fuel injector clogging or glow plug issues—replace with Kubota engine components.

Serial Number Location

The serial number is typically located on a metal plate on the right side of the cab or near the front of the mainframe. Record this number when ordering parts to ensure compatibility.