Overview
The Kubota L4630 is a compact utility tractor manufactured between 2003 and 2007, powered by a 2.2L four-cylinder diesel engine with a 47.2 gross horsepower rating. This four-wheel-drive model features multiple transmission options including 8-speed synchronized, 12-speed power shift, and hydrostatic systems, alongside an optional Grand Cab configuration. The tractor is equipped with a Category I rear hitch rated for 2760 lbs of lift capacity and a total hydraulic flow of 14.7 gpm.
Ideal Applications
Engine and PTO Performance:
The 134.1 ci liquid-cooled diesel engine is rated at 2700 RPM, providing a claimed 39.5 hp for gear-driven PTO outputs and 38 hp for hydrostatic models.
Drivetrain and Transmission Layout:
This model offers diverse mechanical configurations including the L4630DT with an 8-speed synchronized transmission, the L4630GST with a 12-speed power shift, and the L4630HST hydrostatic variant.
Hydraulic and Lift Specifications:
The open center hydraulic system provides a combined 14.7 gpm flow for steering and implements, supporting a rear lift capacity of 2760 lbs at 24 inches behind the lift points.
Production
| Description | Compact Utility tractor |
|---|---|
| Manufacturer | Kubota |
Engine
| Engine type | Kubota 2.2L 4-cyl diesel |
|---|---|
| Fuel tank | 10.6 gal (40.1 L) |
| Air cleaner | dual dry element |
| Bore/Stroke | 3.425x3.638 inches (87 x 92 mm) |
| Description | Kubota / diesel / 4-cylinder / liquid-cooled |
| Displacement | 134.1 ci (2.2 L) |
| Fuel system | indirect injection |
| Power (gross) | 47.2 hp (35.2 kW) |
| Power (net) | 44.7 hp (33.3 kW) |
| Rated RPM | 2700 |
| Starter volts | 12 |
| Engine (gross) | 47.2 hp (35.2 kW) |
| Engine (net) | 44.7 hp (33.3 kW) |
| Gear PTO (claimed) | 39.5 hp (29.5 kW) |
| Hydro PTO (claimed) | 38 hp (28.3 kW) |
Transmission
| Description | Synchronized transmission with mechanical shuttle. |
|---|---|
| Gears | infinite forward and reverse (3-range) / 8 forward and reverse / 12 forward and 8 reverse / 24 forward and 16 reverse |
| Transmission | FST / Glide Shift / Glide Shift Creeper |
| Type | hydrostatic / fully synchronized / power shift |
| Description | hydrostatic |
| Transmission type | 8-speed fully synchronized / 12-speed power shift / 24-speed |
| Description | hydrostatic |
| Transmission type | 8-speed fully synchronized / 12-speed power shift / 24-speed |
Mechanical
| Cab | Two-post folding ROPs. Grand Cab optional. |
|---|---|
| Description | Power steering / Wet disc brakes |
| Drive type | Four-wheel drive |
Hydraulics
| Pump flow | 9.8 gpm (37.1 lpm) |
|---|---|
| Steering flow | 4.9 gpm (18.5 lpm) |
| Total flow | 14.7 gpm (55.6 lpm) |
| Type | open center |
| Valves | 3 OptOptional |
Hitch
| Control | position control with optional draft control |
|---|---|
| Rear lift (at 24"/610mm) | 2760 lbs (1251 kg) |
| Rear Type | I |
PTO
| Mid PTO | independent OptOptional |
|---|---|
| Mid PTO Type | 2000 |
| Rear PTO | independent |
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery volts | 12 |
|---|---|
| Cab Charging amps | 60 |
| Charging system | alternator |
| Ground | negative |
| ROPS Charging amps | 40 |
Dimensions & Tires
| Front tread | 51.2 inches (130 cm) |
|---|---|
| Ground clearance | 14.8 inches (37 cm) |
| Height (cab) | 87 inches (220 cm) |
| Height (ROPS) | 91.1 inches (231 cm) |
| Length | 121.3 inches (308 cm) |
| Rear tread | 50.6/56.5/:60.2 inches (128/143/0 cm) |
| Weight | 3440 lbs (DT) (1560 kg) |
| Wheelbase | 74.6 inches (189 cm) |
| Width | 66.5 inches (168 cm) |
| Front tire | 8.3-16 |
| Rear tire | 14.9-24 |
| Weight | 3440 to 3815 pounds |
| Wheelbase | 74.6 inches (189 cm) |
| Standard tires (ag) | Front: 8.3-16. Rear: 14.9-24 |
Kubota L4630 attachments
| Description | snowblower / blade / front-end loader / backhoe |
|---|
L4630 Serial Numbers
| Location: | Serial number decal on the left side of the tractor frame, above the front axle. |
|---|
References
| Description | Grand L 30 Series published in 2004, by Kubota* / *Publication contains known errors. |
|---|
Variants
| L4630DT | 4WD 8 speed |
|---|---|
| L4630GST | 4WD 12 speed |
| L4630GSTC | cab |
| L4630HST | hydro |