Kubota B2630

Kubota B2630The Kubota B2630 is a compact utility tractor model from the B30 series, manufactured from 2006 to 2012 by Kubota. It was available in four-wheel drive (4WD) version.

The Kubota B2630 is equipped with a 1.1 L (68.5 cu·in) three-cylinder diesel engine with 78.0 mm (3.07 in) of the cylinder bore and 78.4 mm (3.09 in) of the piston stroke, and a hydrostatic transmission with infinite (3-range) forward and reverse gears.

The Kubota B2630 compact utility tractor features:

  • The Kubota D1105-E2-D21 diesel engine which produces 26.4 PS (19.4 kW; 26.0 HP) at 2,800 rpm of horsepower
  • Hydrostatic power steering
  • Wet disc type brakes
  • Open operator station with two-post fixed ROPS
  • Category I rear hitch with 970 kg (2139 lbs) of maximum lift capacity
  • Independent middle PTO with 2,500 rpm
  • Independent rear PTO with 540 rpm

General specifications

General Specifications
ModelKubota B2630
Tractor typeCompact utility tractor
Production years2006-2012
Dimensions and weight
Length2,510 mm (98.8 in)
Width1,360 mm (53.5 in)
Wheel base1,660 mm (65.4 in)
Weight810 kg (1,786 lbs)
Fuel capacity
Fuel tank capacity31.0 liters (8.2 US gal.; 6.8 Imp. gal)


Engine Specifications
Engine modelKubota D1105-E2-D21
Engine type4-stroke, SOHC, three-cylinders
Displacement1.1 L, 1,123 cm3, (68.5 cu·in)
Bore and stroke78.0 mm X 78.4 mm (3.07 in X 3.09 in)
Max. horsepower26.4 PS (19.4 kW; 26 HP) at 2,800 rpm
Cooling systemLiquid-cooled
Coolant capacity:4.0 L (4.2 US. qt, 3.5 Imp. qt.)
Fuel usedDiesel fuel
Starting systemElectric starting with 12V starter
Starting support deviceGlow plug in combustion chamber
GovernorAll speed mechanical governor
Charging systemAlternator 12V
PTO shaft rotationCounterclockwise
Valve clearance
Intake valve clearance:0.145-0.185 mm (0.0057-0.0073 in)
Exhaust valve clearance:0.145-0.185 mm (0.0057-0.0073 in)
Oil system
Lubrication system:Forced lubrication by trochoid pump
Oil type:CF or higher
Recommended oil:SAE 10W-30, 10W-40
Oil capacity:3.0 L (3.2 US. qt, 2.6 Imp. qt.)
Oil pressure: At idle speed: 49 MPa (0.5 kgf/cm2, 7 psi)
At rated speed: 196 to 441 MPa (2.0-4.5 kgf/cm2, 28 to 64 psi)
Oil filter:Full flow paper filter (Cartridge type)
Oil pressure indicating:Electrical type switch
Oil and oil filter change interval:Every 200 hours
Fuel system
Fuel injection pump:Bosch MD type mini fuel injection pump
Injection nozzle:Mini Nozzle (DNOPD)
Firing order:1-2-3
Injection pressure:13.73 MPa (140 kgf/cm2, 1,991 psi)

Transmission and chassis

Chassis, steering and brakes
Chassis4×4 MFWD 4WD
Steering typeHydrostatic power
BrakesWet disc type
Final driveRear
Transmission manufacturer or model
Transmission typeHydrostatic
GearsInfinite (3-range) forward and reverse
Speed Forward: 18.5 kmh (11.5 mph)
Reverse: 14.8 kmh (9.2 mph)
Transmission oil capacity15.0 L (4 US. gal, 3.3 Imp. gal.)


Front tiresAg: 7-12
Rear tiresAg: 12.4-16

Rear Hitch

Three-Point Hitch
Control type
Lift capacity (at ends)970 kg (2,140 lbs)

PTO (Power take-off shaft)

Middle PTO typeIndependent
Middle PTO speed2,500 rpm
Rear PTO typeIndependent
Rear PTO speed540 rpm

Electrical system

Electrical system
Charging systemAlternator
Charging amps14.5A
Battery12V, 36Ah

Hydraulic system

Hydraulic system
Hydraulic typeOpen center
Valves Rear: 1
Front: 1
Hydraulic capacity15.0 L (4 US. gal, 3.3 Imp. gal.)
Pump flow5.6 gpm (21.2 lpm)
Steering flow4.2 gpm (15.9 lpm)
Total flow9.8 gpm (37.1 lpm)


Kubota RCK60: 60″ mid-mount mower deck with 3-blade
Cutting width1,520 mm (60 in)
Weight170 kg (374 lb)
Cut height30-120 mm (1.5 to 5 in)
Kubota RC72: 72″ mid-mount mower deck with 3-blade
Cutting width1,820 mm (72 in)
Weight210 kg (463 lb)
Cut height30-120 mm (1.5 to 5 in)
Kubota LA403 loader
Height (to pin):2,140 mm (84.6 in)
Clearance, dumped bucket:1,700 mm (67.0 in)
Dump reach: ROPS: 620 mm (24.6 in)
Cab: 510 mm (20.2 in)
Dump angle:40°
Rollback angle:30°
Breakout force (at pin):1,050 kg (2,313 lbs)
Lift to full height (at pin):495 kg (1,090 lbs)
Bucket width: 1,370 mm (54.0 in)
1,520 mm (60.0 in)
Raise time to height:3.1 s
Bucket dump time:1.6 s
Lowering time:3.7 s
Rollback time:2.3 s
Kubota BH76 backhoe
Digging depth:2,340 mm (92.2 in)
2-Foot flat digging depth:2,310 mm (91.0 in)
8-Foot flat digging depth:1,760 mm (69.3 in)
Reach from pivot:3,060 mm (120.5 in)
Loading height:1,630 mm (64.5 in)
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

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