SpecializedPerformance profile

Kubota B21

The Kubota B21 is a compact and versatile tractor that's perfect for small farms and big yards. It's a 4-wheel drive machine with a hydrostatic transmission, which means it's easy to control and can handle many different jobs. This tractor was made from 2001 to 2007, so it's a bit older but still reliable. The B21 has a Kubota D1005 diesel engine with 21 horsepower. It's liquid-cooled and has three cylinders, which helps it run smoothly. The tractor weighs 3,990 pounds and has industrial tires, making it sturdy for tough work. It has a Category I hitch that can lift up to 1,014 pounds, and a live rear PTO that spins at 540 rpm for running attachments. One cool feature is that you can add a backhoe to this tractor, making it even more useful for digging and moving dirt.

ManufacturerKubotaPower21 hpEngine3-cylTransHydrostatic
Image not recorded

Quick specs

Category
Specialized
Engine Power Output
21hp
Operating Weight
3,990 lb
Transmission
Hydrostatic
Compare this model

At a glance

How the B21 compares

vs. Specialized median

Distribution

Engine Power (hp)

Across all Specialized tractors

21 hp · 6th

This model

15
Median 62 hp
85
This modelSpecialized tractorsMediann = 55

The B21 ranks at the 6th percentile for engine power among recorded specialized tractors.

Overview

About the Kubota B21

The Kubota B21 is a compact and versatile tractor that's perfect for small farms and big yards. It's a 4-wheel drive machine with a hydrostatic transmission, which means it's easy to control and can handle many different jobs. This tractor was made from 2001 to 2007, so it's a bit older but still reliable. The B21 has a Kubota D1005 diesel engine with 21 horsepower. It's liquid-cooled and has three cylinders, which helps it run smoothly. The tractor weighs 3,990 pounds and has industrial tires, making it sturdy for tough work. It has a Category I hitch that can lift up to 1,014 pounds, and a live rear PTO that spins at 540 rpm for running attachments. One cool feature is that you can add a backhoe to this tractor, making it even more useful for digging and moving dirt.

Full specifications

Every recorded spec

General

ManufacturerKubota
ModelB21
CategorySpecialized tractor
Type4x4 MFWD 4WD
Years built2001–2007
Operating weight3,990lb

Engine

MakeKubota
ModelD1005
Power21hp
Cylinders3
Displacement61.1ci
Bore2.99in
Stroke2.9in

Transmission

TypeHydrostatic

Chassis & drive

Chassis4x4 MFWD 4WD
DriveMFWD 4WD
SteeringHydrostatic Power
BrakesWet Disc
CabFour-post ROPS/FOPS

Hydraulics

TypeOpen Center

Power take-off

Rear PTOLive Rear PTO
PTO speed540rpm

Dimensions

Operating weight3,990lb

Capacities

Cooling system0.9gal

Head to head

B21 vs. Specialized median

How the Kubota B21 compares to other Specialized tractors

SpecThis modelSpecialized medianDifferencePercentile
Engine Power21 hp62 hp-66%6th
Engine Displacement61.1 ci239 ci-74%13th
Cylinders34-25%18th
Operating Weight3,990 lb12,600 lb-68%25th

Medians and percentiles are computed from the specialized tractors in our database with a recorded value for each spec (sample sizes 5058 models).

Explore

Kubota siblings

All Kubota models →

Explore

Similar-spec models

FAQ

Common questions

When was the Kubota B21 in production?

Kubota B21 production started in 2001 and ended in 2007.

How much does the Kubota B21 weigh?

The Kubota B21 weighs about 3,990 lb in operating condition.

What transmission is in the Kubota B21?

Transmission on the Kubota B21 is Hydrostatic.

What hydraulics does the Kubota B21 have?

The Kubota B21 uses an Open Center hydraulic system.

What three-point hitch category does the Kubota B21 use?

The Kubota B21 has a Category I three-point hitch rated to lift 1,014 lb.

How much horsepower does the Kubota B21 have?

The Kubota B21 produces 21 hp from its 3-cylinder engine. Engine displacement is 61.1 ci.

What maintenance does the Kubota B21 require?

Like any tractor, the Kubota B21 needs periodic engine oil and filter changes, hydraulic fluid checks, and regular greasing and inspection. The owner's manual lists the manufacturer's recommended service intervals.