The Kubota KX121-3 Super Series Compact Excavator sets a new standard for performance, versatility, and reliability in the compact excavator category. Engineered for maximum efficiency and durability, this excavator is ideal for a variety of applications including construction, landscaping, and utility work. The KX121-3S is equipped with a powerful Kubota V2203-M-E3 engine, delivering exceptional power and performance while maintaining impressive fuel efficiency.
Designed with operator comfort and ease of use in mind, the KX121-3 S features an ergonomic cabin with intuitive controls and superior visibility, ensuring operators can work comfortably and effectively throughout the day. The advanced hydraulic system provides smooth and precise operation, allowing for greater control and efficiency in all types of excavation tasks.
Kubota KX121-3 S Engine Specs
| Engine Model | Kubota V2203-M-E3 |
| Output (SAEJ 1995 gross) | 40.5 HP (30.2 kW) / 2250 rpm |
| Output (SAEJ 1349 net) | 39.0 HP (29.1 kW) / 2250 rpm |
| Displacement | 134.1 cu. in. (2197 cc) |
| Fuel Capacity | 16.9 gal (64 L) |
Kubota KX121-3 S Operating Specs
| Operating weight: – Canopy (Rubber / Steel) – Cab (Rubber / Steel) |
(Including operator’s weight 175 lbs): – 9063 lbs. (4110 kg) / 9185 lbs. (4175 kg) – 9261 lbs. (4200 kg) / 9383 lbs. (4265 kg) |
| Type of ROPS / FOPS | Canopy / Cab |
| Type of Tracks | Rubber / Steel |
Kubota KX121-3 S Compact Excavator Dimensions
| Overall Length | 16’9″ (5090 mm) |
| Overall Height (Canopy / Cab) | 8’3″ (2495 mm) / 8’2″ (2480 mm) |
| Overall Width | 5’7″ (1700 mm) |
| Min. Ground Clearance | 13.0″ (330 mm) |
Kubota KX121-3 Super Series Working Range
| Max. digging height | 17′ 10″ (5420 mm) |
| Max. dumping height | 12′ 9″ (3890 mm) |
| Max. digging depth | 11′ 6″ (3505 mm) |
| Max. vertical digging depth | 9′ 6″ (2900 mm) |
| Max. digging radius, at ground level | 18′ 0″ (5475 mm) |
| Max. digging radius | 18′ 5″ (5600 mm) |
| Min. turning radius (w/o swing) | 6′ 9″ (2060 mm) |
| Min. turning radius (with swing) | 5′ 6″ (1665 mm) |
| Min. tail turning radius | 4′ 3″ (1300 mm) |
| Crawler Length | 7’2″ (2175 mm) |
| Tumbler Distance | 5’8″ (1710 mm) |
| Shoe Width | 13.8″ (350 mm) |
| Ground Contact Pressure (Rubber / Steel) | Canopy: 4.41 psi (0.31 kgf/cm²) / 4.41 psi (0.31 kgf/cm²) Cab: 4.41 psi (0.31 kgf/cm²) / 4.55 psi (0.32 kgf/cm²) |
| Max. Blade Lift Above Ground | 15.7″ (400 mm) |
| Max. Blade Drop Below Ground | 15.9″ (405 mm) |
| Blade Width | 5’7″ (1700) |
| Blade Height | 13.8″ (350) |
| Boom Swing Angle (Left / Right) | 80° / 50° |
| Unit Swing Speed | 9.4 rpm |
KX121-3 S Drive & Hydraulic Specifications
| Pump Capacity | 25.0 GPM (94.5 L/min) |
| Auxiliary Hydraulic Flow | 17.2 GPM (65.0 L/min) |
| Hydraulic Oil (Reservoir / System) | 12.0 gal (46 L) / 19.8 gal (75 L) |
| Travel Speed (Low / High) | 1.7 mph (2.7 km/h) / 3.1 mph (5.0 km/h) |
| Max. Traction Force | 9867 lbs. (4485 kgf) |
| Max. Breakout Force (Bucket / Arm) | 7187 lbs. (3260 kgf) / 3947 lbs. (1790 kgf) |
With its robust construction and advanced features, the Kubota KX121-3 Super Series Compact Excavator is built to tackle the toughest jobs with ease.
Whether you’re digging, grading, or backfilling, this excavator offers the reliability and performance you need to get the job done right. Its combination of power, versatility, and user-friendly design makes it an essential tool for professionals in the field.
