Kubota L305
The Kubota L305 is a tractor produced by Kubota. It is equipped with a 79.27 ci 1.3 L engine. The listed engine power is Diesel (listed): 30 hp / 22.4 kW. Transmission: 8 forward and 2 reverse. Operating weight: 2650 to 3140 pounds.
Engine Power
Diesel (listed): 30 hp / 22.4 kW
Fuel & Capacities
8.8 gal
33.3 L
Transmission
8 forward and 2 reverse
Operating Weight
2650 to 3140 pounds
Overview
 | 1979 - 1985
L SeriesCompact Utility tractor
L Series
Compact Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Kubota |
Compact Utility tractor | |
Built in Japan | |
Variants | |
|---|---|
L305F | 2WD |
L305DT | 4WD |
Kubota L305 Engine | |
|---|---|
Kubota 1.3L 3-cyl diesel | |
Fuel tank | 8.8 gal
33.3 L |
Engine details ...  | |
Kubota L305 Transmission | |
|---|---|
8-speed gear | |
Transmission details ...  |
Kubota L305 Power | |
|---|---|
Engine | 30 hp
22.4 kW |
PTO (claimed) | 26 hp
19.4 kW |
Drawbar (tested) | 21.78 hp
16.2 kW |
PTO (tested) | 26.21 hp
19.5 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Final drives | planetary |
Steering | power assist |
Wet disc brakes | |
Two-post fixed ROPS. | |
Hydraulics | |
|---|---|
Type | open center |
Pump flow | 6.4 gpm
24.2 lpm |
Tractor hitch | |
|---|---|
Rear Type | I |
Control | position and draft control |
Rear lift | 2028 lbs
919 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | live |
Rear PTO Type | 540/1000 (1.375) |
Engine RPM | 540@2530 |
1050@2350 | |
Front PTO | optional |
Front PTO Type | 2800 |
Dimensions & Tires | |
|---|---|
Wheelbase | 72.8 inches
184 cm |
Weight | 2650 to 3140 pounds |
Front tire | 5.50-16 |
2WD Rear tire | 13.6-24 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
 | |
Tractors and Excavators published in 1981, by Kubota | |
Tractors and Excavators published in 1982, by Kubota | |
Kubota Tractors Diesel L295/L305/L345 published in 1981 |
Engine
Engine Detail — 79.27 ci / 1.3 L Diesel
Manufacturer | Kubota D1301 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 79.27 ci
1.3 L |
Bore/Stroke | 3.23x3.23 inches
82 x 82 mm |
Power | 30 hp
22.4 kW |
Air cleaner | dry element |
Compression | 21:1 |
Rated RPM | 2800 |
Starter volts | 12 |
Transmission
Transmission — 8 forward and 2 reverse gear
Type | gear |
Gears | 8 forward and 2 reverse |
Clutch | dry disc |
 | |
Dimensions
Kubota L305 Tires | |
|---|---|
2WD Standard tires (ag) | Front: 5.50-16. Rear: 13.6-24 |
4WD Standard tires (ag) | Front: 8.3-16. Rear: 13.6-24 |
Optional tires (ag) | Front: 7.00-16. Rear: 12.4-24 |
Dimensions | |
|---|---|
Wheelbase | 72.8 inches
184 cm |
Length | 126.4 inches
321 cm |
Width | 64.2 inches
163 cm |
Height (exhaust) | 79.9 inches
202 cm |
Ground clearance | 13.75 inches
34 cm |
Front tread | 48.1 inches
122 cm |
Rear tread | 50.4 to 66.9 inches
128 to 169 cm |
Kubota L305 Weight | |
|---|---|
2WD Shipping | 2650 lbs
1202 kg |
4WD Shipping | 2855 lbs
1295 kg |
Operating | 3140 lbs
1424 kg |
Tests
Nebraska Tractor Test 1371 | |
|---|---|
Diesel 8-speed 4WD
October 7 - 24, 1980
Link: Nebraska Tractor Test 1371 file | |
PTO performance | |
Power at rated engine speed | 26.21 hp
19.5 kW |
Fuel use | 2.0 gal/hour
7.6 l/hour |
Power at rated PTO speed | 25.14 hp
18.7 kW |
Fuel use | 1.8 gal/hour
6.8 l/hour |
Drawbar performance | |
Max power | 21.78 hp
16.2 kW |
Fuel use | 2.0 gal/hour
7.6 l/hour |
Max pull | 4,397 lbs
1994 kg |
Attachments
Attachment overview | |
|---|---|
Front-end loader | |
Backhoe |
Kubota L4510 Backhoe | |
|---|---|
Backhoe type | Kubota L4510 Backhoe |
Transport height | 93 inches
236 cm |
Bucket width | 12 inches
30 cm |
18 inches
45 cm | |
24 inches
60 cm | |
36 inches
91 cm | |
2-Foot flat digging depth | 88 inches
223 cm |
Reach from pivot | 128 inches
325 cm |
Loading height | 84 inches
213 cm |
Bucket Rotation | 180° |
Swing Arc | 180° |
Bucket force | 7000 lbs
3175 kg |
Dipperstick force | 4000 lbs
1814 kg |
Kubota L4530 Backhoe | |
|---|---|
Backhoe type | Kubota L4530 Backhoe |
Transport height | 73.6 inches
186 cm |
Bucket width | 10 inches
25 cm |
12 inches
30 cm | |
16 inches
40 cm | |
2-Foot flat digging depth | 85 inches
215 cm |
Reach from pivot | 110 inches
279 cm |
Loading height | 73.2 inches
185 cm |
Bucket Rotation | 164° |
Swing Arc | 180° |
Bucket force | 1645 lbs
746 kg |
Dipperstick force | 2890 lbs
1310 kg |
Photos
Kubota L305 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Kubota L305 based on its 30 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 5 ft (60 in)1.5 m | Medium Duty | Pasture maintenance and weeds up to 1.5" diameter. |
Rotary TillerSeedbed Prep | 54 to 60 in135 - 150 cm | Medium Duty | Thorough seedbed preparation in orchards and vegetable plots. |
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 L305.
Estimated Continuous Field Runtime: 5.6 hrs
Approximately 5.6 hours of continuous field operation at ~75% rated power on a full tank (8.8 gal / 33.3 L).
Estimated 75% Load Fuel Burn~1.6 gal/hr (5.9 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 L305 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Kubota L305.
Converted Equivalents:
Horsepower (HP)30 hp
Kilowatts (kW)22.4 kW
Metric Horsepower (PS / CV)30.4 PS
Direct Competitor Comparison
Compare Kubota L305 against same-era industry alternatives in the same horsepower class.
Current Model
Kubota
Kubota L305
Engine Power:Diesel (listed): 30 hp / 22.4 kW
★ Baseline Reference
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