The Kubota B40 specifications include production from 1988 – 1992, engine power rated at 14 hp (10.4 kW), a 6-forward, 2-reverse transmission, and a listed weight of 1,213 lbs (550 kg).
Kubota B40 key specifications
| Production years | 1988 – 1992 |
|---|---|
| Horsepower | 14 hp |
| Engine power | 14 hp (10.4 kW) |
| Displacement | 52.2 cu in (0.9 L) |
| Transmission | 6-forward, 2-reverse |
| Fuel capacity | 4.5 gal (17.0 L) |
| Weight | 1,213 lbs (550 kg) |
| Wheelbase | 49 inches (124 cm) |
| Rear PTO speed | 540 rpm, 1.375-inch shaft |
Kubota B40 Kubota model comparison
See how this tractor compares across up to six main specifications using the low, average and high values among Kubota models in this database.
Engine power14 hp
Low 9 hpAverage 44.1 hpHigh 200 hp
Displacement0.9 L
Low 0.5 LAverage 2.4 LHigh 6.7 L
Fuel capacity4.5 gal
Low 2.1 galAverage 17.3 galHigh 99 gal
Weight1,213 lbs
Low 528 lbsAverage 3,997.4 lbsHigh 19,510 lbs
Wheelbase49 in
Low 43.5 inAverage 69.9 inHigh 114 in
This model Kubota database average
Kubota B40 dimensions chart
Compare the main listed tractor dimensions using centimetres.
Engine specifications
| Bore/Stroke | 2.83 × 2.76 inches (72 × 70 mm) |
|---|---|
| Rated RPM | 2,600 |
| Starter | electric |
| Starter volts | 12 |
Transmission options
| Gears | 6 forward and 2 reverse |
|---|---|
| Transmission type | gear |
PTO and hitch
| Rear hitch category | Category JIS0 |
|---|---|
| PTO engine speed | 447 PTO rpm at 2,600 engine rpm |
Electrical specifications
| Electrical ground | negative |
|---|---|
| Battery volts | 12 |
Dimensions and weight
| Length | 84.7 inches (215 cm) |
|---|---|
| Width | 41.5 inches (105 cm) |
| Ground clearance | 9.3 inches (23 cm) |
Tires and tread
| Front tread | 30.3 inches (76 cm) |
|---|---|
| Rear tread | 31.9 or 35.4 inches (81 or 89 cm) |
| Standard tires (ag) | Front: 5.00-12. Rear: 8-16 |
Note: Comparison values are calculated from Kubota models in this specifications database. Specifications can vary by year, market, configuration, tires and optional equipment. For official specifications, check the official Kubota website or the tractor’s operator manual.

