Overview
The Kubota KB21X is a sub-compact utility farm tractor produced from 2009 to 2014, available in both wheeled and half-track variants. It is powered by a 1.1L three-cylinder diesel engine rated at 20.7 hp and features a four-wheel-drive mechanical system. The tractor's configuration includes either a two-post ROPS or an optional air-conditioned cab, with operational weights ranging from 1,554 to 1,951 pounds depending on the build.
Ideal Applications
Transmission and Drive Configuration:
The KB21X features a Glideshift power shift transmission with options for 9 or 36 forward gears, incorporating a dry disc clutch and a shuttle shift mechanism.
Engine and PTO Performance:
Equipped with a liquid-cooled Kubota D1105 engine, the tractor produces 20.7 hp at 2600 RPM and provides a rear PTO speed of 530 RPM at the rated engine speed.
Mechanical and Physical Dimensions:
The chassis is built with power steering, mechanical wet disc brakes, and a Category 0 rear hitch, maintaining a ground clearance of 13.8 inches and a wheelbase of approximately 53 inches.
Production
| Description | Sub-Compact Utility tractor |
|---|---|
| Manufacturer | Kubota |
Engine
| Cab Fuel tank | 5.6 gal (21.2 L) |
|---|---|
| Engine type | Kubota 1.1L 3-cyl diesel |
| ROPS Fuel tank | 7.1 gal (26.9 L) |
| Bore/Stroke | 3.07x3.09 inches (78 x 78 mm) |
| Description | Kubota D1105 / diesel / 3-cylinder / liquid-cooled |
| Displacement | 68.5 ci (1.1 L) |
| Power | 20.7 hp (15.4 kW) |
| Rated RPM | 2600 |
| Starter | electric |
| Starter volts | 12 |
Transmission
| Clutch | dry disc |
|---|---|
| Description | Three gears (1-3) in three ranges with shuttle shift. / Sequential hydraulically-shifted transmission. Twelve forward gears with three ranges. Tractor must be stopped, and clutch used, to shift ranges. |
| Gears | 9 forward and reverse / 36 forward and 24 reverse |
| Transmission | Glideshift |
| Type | power shift |
| Transmission type | 9-speed / 36-speed power shift |
| Transmission type | 9-speed / 36-speed power shift |
Mechanical
| Cab | Two-post ROPS. Cab optional with air-conditioning. |
|---|---|
| Description | Power steering / Mechanical wet disc brakes |
| Drive type | Four-wheel drive |
Hitch
| Rear Type | 0 |
|---|
PTO
| Engine RPM | 530@2600 |
|---|---|
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery volts | 12 |
|---|---|
| Ground | negative |
Dimensions & Tires
| Cab Length | 97.6 inches (247 cm) |
|---|---|
| Cab Rear tread | 38.2 inches (97 cm) |
| Cab Wheelbase | 53.7 inches (136 cm) |
| Cab Width | 47.6 inches (120 cm) |
| Front tread | 33.5 inches (85 cm) |
| Ground clearance | 13.8 inches (35 cm) |
| Height (cab) | 77.2 inches (196 cm) |
| Height (ROPS) | 74.8 inches (189 cm) |
| ROPS Length | 92.3 inches (234 cm) |
| ROPS Rear tread | 35 inches (88 cm) |
| ROPS Wheelbase | 53.2 inches (135 cm) |
| ROPS Width | 44.5 inches (113 cm) |
| Cab Wheelbase | 53.7 inches (136 cm) |
| Front tire | 6.00-12 |
| Rear tire | 9.5-20 |
| ROPS Wheelbase | 53.2 inches (135 cm) |
| Weight | 1554 to 1951 pounds |
| Standard tires (ag) | Front: 6.00-12. Rear: 9.5-20 |
Kubota KB21X Weight
| Cab gear | 1896 lbs (860 kg) |
|---|---|
| Cab Glideshift | 1951 lbs (884 kg) |
| ROPS gear | 1554 lbs (704 kg) |
| ROPS Glideshift | 1609 lbs (729 kg) |
Variants
| KB21X | wheeled |
|---|---|
| KB21X-PC | half-track |