The Kubota KX121-3S 6-Way Blade Mini Excavator (Super Series) stands out as a robust and versatile machine, designed to handle a wide range of excavation tasks with precision and efficiency. Renowned for its powerful performance and exceptional durability, the KX121-3S is equipped with advanced hydraulic systems and a dependable Kubota V2203-M-E3 engine, delivering a reliable output that ensures smooth operation in various job site conditions.
One of the key features of the KX121-3S is its innovative 6-way blade, offering superior maneuverability and versatility for grading, backfilling, and leveling tasks. This mini excavator is designed with user-friendly controls and a comfortable operator’s cabin, providing enhanced visibility and reduced fatigue during long hours of operation.
Kubota KX121-3S 6-in-1 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 KX121-3S 6-in-1 Operating Specs
| Operating weight: – Canopy (Rubber / Steel) – Cab (Rubber / Steel) |
(Including operator’s weight 175 lbs): – 9790 lbs. (4440 kg) / 9930 lbs. (4505 kg) – 9990 lbs. (4530 kg) / 10130 lbs. (4595 kg) |
| Type of ROPS / FOPS | Canopy / Cab |
| Type of Tracks | Steel / Rubber |
Kubota KX121-3S Compact Excavator Dimensions
| Overall Length | 16’9″ (5090 mm) |
| Overall Height (Canopy / Cab) | 8’3″ (2495 mm) / 8’2″ (2480 mm) |
| Overall Width | 5’10.9″ (1800 mm) |
| Min. Ground Clearance | 13.0″ (330 mm) |
Kubota KX121-3S 6-Way Blade 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: 4.83 psi (0.34 kgf/cm²) / 4.83 psi (0.34 kgf/cm²) Cab: 4.98 psi (0.35 kgf/cm²) / 4.98 psi (0.35 kgf/cm²) |
| Max. Blade Lift Above Ground | 17.0″ (433 mm) |
| Max. Blade Drop Below Ground | 20.7″ (527 mm) |
| Max. Swing Angle (Tilt / Left / Right) | 10° / 25° / 25° |
| Boom Swing Angle (Left / Right) | 80° / 50° |
| Unit Swing Speed | 9.4 rpm |
KX121-3S 6-Way Blade Drive & Hydraulic System
| 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) |
Note: All measurements are provided in both imperial and metric units for convenience.
Whether you are working on construction sites, landscaping projects, or utility installations, the Kubota KX121-3S is engineered to deliver outstanding performance and productivity, making it an invaluable asset for contractors and operators alike.
