Used Kubota KX185 excavator

Yes, the Kubota KX185 is classified as an 8-ton class compact excavator. Its standard operating weight is approximately 8,245 kg (18,177 lbs) , and with optional attachments such as a dozer blade or reinforced undercarriage, it can reach up to 8,500 kg (18,740 lbs) . This weight class provides an excellent balance between digging power and transport convenience — it can be towed on a standard flatbed trailer without requiring special overweight permits in most regions.

The Kubota KX185 is powered by a Kubota V3307-DI-T turbocharged diesel engine — a 4-cylinder, water-cooled, 3.331L displacement engine. It delivers a rated power of 47.8 kW (64.1 HP) at 2,000 rpm. This engine is known for its high torque at low RPM, which translates to smooth digging performance and better fuel efficiency compared to naturally aspirated engines in the same class. Real-world fuel consumption ranges from 6 to 9 L/hour, depending on load and operating conditions.

Overall, the KX185 is a highly reliable machine, but on used units (especially those above 8,000–10,000 hours), the following issues are worth inspecting:

1. Hydraulic leaks – The most common wear points are the swing motor seals, control valve O-rings, and cylinder wiper seals. Look for wetness or oil residue around the hydraulic pump connection, rotary manifold, and cylinder rods.

2. Track tension & undercarriage – Rubber tracks may show uneven wear if the idlers or sprockets are worn. Check for loose track sag or seized rollers.

3. Turbocharger condition – On higher-hour units, inspect for unusual whining noises or oil blow-by in the intake/exhaust.

4. Swing bearing play – Excessive radial or axial play in the turntable bearing is a costly repair; check by pushing the bucket against the ground and watching for movement between the upper and lower structure.

Properly maintained examples often exceed 12,000 hours with only routine component replacements.

The Kubota KX185 offers class-leading working ranges (standard arm configuration):

These specifications allow the KX185 to easily handle 4-meter deep trenching for utilities and load soil into standard 6×4 dump trucks (bed height ~2.5–3 meters) without repositioning.

The Kubota KX185 is classified as a zero tail swing (also called ultra-short tail swing) excavator. Its tail swing radius is only 1,460 mm (57.5 inches) , which is nearly flush with the width of its rubber tracks (1,960 mm / 77 inches). This means when working next to a wall, curb, or building foundation, the rear of the machine will not protrude beyond the track width — greatly reducing collision risk and increasing safety in confined urban job sites. This feature alone makes the KX185 one of the most sought-after models for utility work, basement excavation, and landscaping in tight spaces.