Bobcat 331 vs Kubota U35-4

The Kubota U35-4 is the heavier machine, at 3.83 t against 3.27 t, and the Bobcat 331 has more power (29.9 kW against 17.8 kW).

The Bobcat 331 is ahead on: more power, digs deeper, bigger fuel tank, faster, narrower to transport, lower to transport. The Kubota U35-4 is ahead on: reaches further, dumps higher.

Below, every figure both makers publish sits side by side, with the Bobcat 331 and the Kubota U35-4 drawn to the same scale from their dimension drawings.

Bobcat · mini excavator
Bobcat 331
Change modelFull specs PDF
Kubota · mini excavator
Kubota U35-4
Change modelFull specs PDF
Add a modelUp to four

At a glance

Bold is the machine ahead on each figure, with its lead.

Figure	Bobcat 331	Kubota U35-4
Operating weight	3,273 kg	3,830 kg
Net powerHigher is better	29.9 kW+68%	17.8 kW
Max digging depthHigher is better	3.101 m+4%	2.97 m
Max reach at ground levelHigher is better	4.874 m	5.165 m+6%
Max dumping heightHigher is better	3.089 m	3.37 m+9%
Fuel tankHigher is better	57.9 L+29%	45 L
Travel speed (high)Higher is better	5.6 km/h+22%	4.6 km/h
Overall widthLower is better	1.54 m+9%	1.7 m
Overall height (to top of cab)Lower is better	2.391 m+3%	2.47 m
Overall length	4.88 m	4.75 m

All specifications

Every figure the makers publish. Search for one, or show only those that differ.

Differences only(64)

FigureBobcat 331 Kubota U35-4

Dimensions

Overall length4.88 mTravel position; 4,882 mm in the O&M manual4.75 mTransport

Overall height (to top of cab)2.391 m2,394 mm in the O&M manual2.47 mCanopy model 2.48 m

Swing centre to front (transport)3.493 mNot published

Engine cover height1.476 mNot published

Ground clearance, counterweight0.511 m532 mm in the O&M manualNot published

Blade height0.378 m0.34 m

Overall width1.54 mOver tracks1.7 m

Shoe width0.32 mRubber track0.295 mRubber track

Max digging reachNot published5.272 m

Min turning radius, without boom swingNot published2.25 m

Min turning radius, with boom swingNot published1.755 m

Min tail turning radiusNot published0.901 m

Ground clearance (minimum)Not published0.29 m

Track lengthNot published2.09 mCrawler length

Tumbler distanceNot published1.67 m

Blade widthNot published1.7 m

Blade lift above groundNot published0.37 m

Blade drop below groundNot published0.37 m

Performance

Max digging height4.539 m4.844 m

Max dumping height3.089 m3.37 m

Max digging depth3.101 m2.97 m

Max vertical wall digging depth2.202 m2.013 m

Max reach at ground level4.874 m5.165 m

Stick length1.2 mNot published

Bucket digging force31 kN2,810 kgfMax. breakout force, bucket

Rated lift capacity602 kgNot published

Swing speed9.2 rpm8.5rpm

Minimum swing radius1.4 mNot published

Boom swing, left90°Not published

Boom swing, right50°Not published

Travel speed (high)5.6 km/h4.6 km/h

Travel speed (low)2.1 km/h3 km/h

Ground pressure29.4 kPaNot published

Arm digging forceNot published1,920 kgfMax. breakout force, arm

Max traction forceNot published2,760 kgf

Boom swing angle, leftNot published70°

Boom swing angle, rightNot published48°

Weight

Operating weight3,273 kg3,830 kgCab model, rubber tracks

Operating weight (canopy)Not published3,690 kgCanopy model, rubber tracks

Engine

Engine modelKubota V2203-EBKubota D1703M-DI-E4

Cylinders4D-series O&M manual3

Displacement2.2 L1.6 L

Net power29.9 kW (40.0 hp)SAE net at 2,400 rpm17.8 kW (23.9 hp)SAE J1349, at 2,200 rpm

EmissionsNot publishedTier 4 compliant

Gross powerNot published18.5 kW (24.8 hp)SAE J1995, at 2,200 rpm

Engine oilNot published5.3 L

Hydraulics

Pump flow91 L/minTotal capacity; imperial 24 gpm39.6 L/min x 2 + 20.9 L/min x 1Hydraulic pump capacity

Auxiliary circuit flow62 L/minNot published

Auxiliary circuit relief172 barNot published

Auxiliary flow (AUX1)Not published60 L/min

Hydraulic system, with tankNot published61 L

Service capacities

Fuel tank57.9 L45 L

Hydraulic tank29.5 L36 L

Engine oil, with filter7.1 LNot published

Cooling system15.1 LWithout heater, including recovery tankNot published

Final drive oil, each side1.6 LNot published

Service intervals

Engine oil and filter250 hoursFirst change at 50 hNot published

Fuel filters250 hoursNot published

Hydraulic filter500 hoursAlso at first 100 hNot published

Hydraulic oil1,000 hoursWith the filter; also at first 100 hNot published

Final drive oil1,000 hoursNot published

Coolant1,000 hoursOr every 6 monthsNot published

Swing circle and pinion grease50 hoursThree fittingsNot published

Pivot points grease10 hours21 placesNot published

Sources: Bobcat D-Series Excavators brochure (322, 325, 328, 331, 331E, 334, 337, 341), Machine.Market copy of the Bobcat Company brochure · Kubota Australia, U35-4 Mini Excavator product page (specifications table)

Drawn to scale

Side views measured off each maker's dimension drawing, front edges and ground lined up.

Bobcat 331Kubota U35-4Same scale, front edges and ground lined up.

Bobcat 331 vs Kubota U35-4: questions

Which is bigger, the Bobcat 331 or Kubota U35-4?

By operating weight the Kubota U35-4 is the biggest at 3.83 t, then the Bobcat 331 at 3.27 t.

Which has more power, the Bobcat 331 or Kubota U35-4?

The Bobcat 331: Bobcat 331 29.9 kW (40.0 hp), Kubota U35-4 17.8 kW (23.9 hp) (net power), a 68% difference.

Which digs deeper, the Bobcat 331 or Kubota U35-4?

The Bobcat 331: Bobcat 331 3.101 m, Kubota U35-4 2.97 m (max digging depth), a 4% difference.

Which reaches further, the Bobcat 331 or Kubota U35-4?

The Kubota U35-4: Bobcat 331 4.874 m, Kubota U35-4 5.165 m (max reach at ground level), a 6% difference.

Which has the bigger fuel tank, the Bobcat 331 or Kubota U35-4?

The Bobcat 331: Bobcat 331 57.9 L, Kubota U35-4 45 L (fuel tank), a 29% difference.

Which is narrower to transport, the Bobcat 331 or Kubota U35-4?

The Bobcat 331: Bobcat 331 1.54 m, Kubota U35-4 1.7 m (overall width), a 9% difference.

Where do these figures come from?

Each model's own published spec sheet or brochure, linked under the table. Builds differ by market and year, so confirm the figures for a particular machine with its dealer.

Can I rent or buy these machines in the UAE?

Each model's page lists the ones for hire and for sale on EquipmentsFinder now, with typical prices in AED.