Kubota KL21
The Kubota KL21 is a tractor produced by Kubota. It is equipped with a 85 ci 1.4 L engine. The listed engine power is Diesel (listed): 20.7 hp / 15.4 kW. Transmission: 24 forward and 16 reverse. Operating weight: 2840 to 2877 pounds.
Engine Power
Diesel (listed): 20.7 hp / 15.4 kW
Fuel & Capacities
7.1 gal
26.9 L
Transmission
24 forward and 16 reverse
Operating Weight
2840 to 2877 pounds
Overview
 | 1999 - 2005
KL SeriesCompact Utility tractor
KL Series
Compact Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Kubota |
Compact Utility tractor | |
Kubota KL21 Engine | |
|---|---|
Kubota 1.4L 3-cyl diesel | |
Fuel tank | 7.1 gal
26.9 L |
Engine details ...  | |
Kubota KL21 Power | |
|---|---|
Engine | 20.7 hp
15.4 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Power steering | |
Mechanical wet disc brakes | |
Two-post ROPS. Cab optional. |
Tractor hitch | |
|---|---|
Rear Type | I |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540 (1.375) |
Engine RPM | 564@2600 |
795@2600 | |
985@2600 | |
1313@2600 | |
-985@2600 | |
Dimensions & Tires | |
|---|---|
ROPS Wheelbase | 61 inches
154 cm |
Cab Wheelbase | 63 inches
160 cm |
Weight | 2840 to 2877 pounds |
Front tire | 6-14 |
Rear tire | 8.3-24 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
Engine
Engine Detail — 85 ci / 1.4 L Diesel
Manufacturer | Kubota D1403 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 85 ci
1.4 L |
Bore/Stroke | 3.1x3.6 inches
79 x 91 mm |
Power | 20.7 hp
15.4 kW |
Rated RPM | 2600 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
16-speed | |
24-speed |
Transmission — 16 forward and reverse
Gears | 16 forward and reverse |
Four gears (1-4) in two ranges with additional creeper range and shuttle shift. | |
 | |
Transmission | |
Gears | 16 forward and reverse |
Eight gears in two ranges (creeper and high) with shuttle shift. | |
Gears | 24 forward and 16 reverse |
Twelve gears in two ranges (creeper and high) with shuttle shift. Only eight gears available in reverse. 24-speed transmission only on tractors with cabin. | |
Dimensions
Kubota KL21 Tires | |
|---|---|
Standard tires (ag) | Front: 6-14. Rear: 8.3-24 |
Dimensions | |
|---|---|
ROPS Wheelbase | 61 inches
154 cm |
Cab Wheelbase | 63 inches
160 cm |
ROPS Length | 116.7 inches
296 cm |
Cab Length | 118.7 inches
301 cm |
Width | 48 inches
121 cm |
Height (ROPS) | 77 inches
195 cm |
Height (cab) | 77.6 inches
197 cm |
ROPS Weight | 2840 lbs
1288 kg |
Cab Weight | 2877 lbs
1305 kg |
Ground clearance | 13.2 inches
33 cm |
Front tread | 37.4 inches
94 cm |
Rear tread | 39.8/44.5 inches
101/113 cm |
Recommended Implements & Sizing Guide
Engineering recommendations for Kubota KL21 based on its 20.7 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 1 to 2 Bottom (12")1 - 2 铧 (30 cm) | Light Duty | Ideal for garden plots and light sandy soil. |
Rotary Cutter / MowerMowing & Clearing | 4 ft (48 in)1.2 m | Light Duty | Pasture clipping and light brush under 1" diameter. |
Rotary TillerSeedbed Prep | 42 to 48 in105 - 120 cm | Light Duty | Covers compact tractor tire width. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Kubota KL21.
Estimated Continuous Field Runtime: 6.6 hrs
Approximately 6.6 hours of continuous field operation at ~75% rated power on a full tank (7.1 gal / 26.9 L).
Estimated 75% Load Fuel Burn~1.1 gal/hr (4.1 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Kubota KL21 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Kubota KL21.
Converted Equivalents:
Horsepower (HP)20.7 hp
Kilowatts (kW)15.4 kW
Metric Horsepower (PS / CV)21 PS
Direct Competitor Comparison
Compare Kubota KL21 against same-era industry alternatives in the same horsepower class.
Current Model
Kubota
Kubota KL21
Engine Power:Diesel (listed): 20.7 hp / 15.4 kW
★ Baseline Reference
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