They have another section that is not in the technical section that has even more info. I believe it is linked at the bottom of the front page.
Here is an example for the B2910HSD
Specifications for the Kubota B2910HSD (4WD) Tractor
Engine
Model V1505-E-D16
Type Indirect Injection Vertical, water cooled, 4 cycle diesel
Number of cylinders 4
Total displacement (cu-in.) 81.5
Bore and stroke (in.) 3.1 X 3.1
Gross engine horsepower 30.0
Power takeoff horsepower 22.0
Maximum torque (ft. lbs.) 66.0
Capacities
Fuel tank (U.S. gallons) 6.9
Engine crankcase (with filter, qts.) 4.3
Engine coolant (qts.) 4.7
Transmission (gallons) 3.83
Dimensions
Overall Length (without 3 point hitch, inches) 99.2
Overall Width (at minimum tread setting, inches) 53.8
Overall Height (with ROPS, inches) 78.5
Wheel Base (inches) 65.6
Minimum ground clearance (inches) 14.6
Weight (with ROPS, lbs.) 1763
Drive Train
Front tire size (standard) 7-12
Rear tire size (standard) 12.4-16
Clutch Dry, single stage
Steering Integral power steering
Transmission Hydrostatic transmission with 3 ranges
Control type Single "rocker" pedal for forward-reverse
Brakes Wet disc type
Minimum turning radius with brakes (ft.) 6.9
Hydraulic System
Hydraulic control type Position control type lift
Pump capacity (gallons per minute) 6.4
Three Point Hitch Category 1
Maximum lift capacity at lift points (lbs.) 1655
Maximum lift capacity at 24" behind lift point (lbs.) 1300
Power Take Off
Rear PTO type SAE 1 3/8", 6 spline with overrunning clutch
Rear PTO speed 540 RPM @ 2600 engine RPM
Mid PTO type USA #5, 10 spline involute
Mid PTO speed 2500 RPM @ 2578 engine RPM
They have many listed but unfortunately they must have the L series down to update it.