Specification sheetIssued 4 November 2026
Bobcat · mini excavator
Bobcat 331
Bobcat 331 D-series compact excavator (S/N 232511001 and above; Kubota V2203-EB 29.9 kW, 320 mm rubber tracks) from the Bobcat Company D-series excavator brochure (Machine.Market copy), cross-checked with the Bobcat 331/331E/334 Operation & Maintenance Manual 6901957 (2003). The 331 is discontinued. Neither document letters its dimension drawing, so the Dimensions group has no letters; the A-E letters are those the brochure prints for the working range.
USAGlobal
- digging depth
- 122.1 in
- power
- 40.0 hp
- Operating weight
- 7215 lb
Dimensions
- Overall length (Travel position; 4,882 mm in the O&M manual)
- 192.2 in
- Overall height (to top of cab) (2,394 mm in the O&M manual)
- 94.1 in
- Swing centre to front (transport)
- 142.9 in
- Height to top of engine cover
- 58.1 in
- Ground clearance, counterweight (532 mm in the O&M manual)
- 20.1 in
- Blade height
- 14.9 in
- Overall width (Over tracks)
- 60.6 in
- Shoe width (Rubber track)
- 12.6 in
Performance
- AMax digging height
- 178.7 in
- BMax dumping height
- 121.6 in
- CMax digging depth
- 122.1 in
- DMax vertical wall digging depth
- 86.7 in
- EMax reach at ground level
- 191.9 in
- Arm length
- 47.2 in
- Bucket digging force
- 7000 lbf
- Rated lift capacity
- 1328 lb
- Swing speed
- 9.2 rpm
- Minimum swing radius
- 55.1 in
- Boom swing, left
- 90°
- Boom swing, right
- 50°
- Travel speed (high)
- 3.5 mph
- Travel speed (low)
- 1.3 mph
- Ground pressure
- 29.4 kPa
Weight
- Operating weight
- 7215 lb
Engine
- Engine model
- Kubota V2203-EB
- Cylinders (D-series O&M manual)
- 4
- Displacement
- 134.0 cu in
- Net power (SAE net at 2,400 rpm)
- 40.0 hp
Hydraulics
- Pump flow (Total capacity; imperial 24 gpm)
- 24 gpm
- Auxiliary circuit flow
- 16.4 gpm
- Auxiliary circuit relief
- 2500 psi
Service capacities
- Fuel tank
- 15.3 gal
- Hydraulic tank
- 7.8 gal
- Engine oil, with filter
- 1.9 US gal
- Cooling system (Without heater, including recovery tank)
- 4 US gal
- Final drive oil, each side
- 0.4 US gal
Service intervals
- Engine oil and filter (First change at 50 h)
- 250 hours
- Fuel filter
- 250 hours
- Hydraulic filter (Also at first 100 h)
- 500 hours
- Hydraulic oil (With the filter; also at first 100 h)
- 1,000 hours
- Final drive oil
- 1,000 hours
- Coolant (Or every 6 months)
- 1,000 hours
- Swing circle and pinion grease (Three fittings)
- 50 hours
- Pivot points grease (21 places)
- 10 hours