Kubota M8030
The Kubota M8030 is a tractor produced by Kubota. It is equipped with a 261.9 ci 4.3 L engine. The listed engine power is Diesel (listed): 81 hp / 60.4 kW. Transmission: 16 forward and 4 reverse. Operating weight: 5247 to 6172 pounds.
Engine Power
Diesel (listed): 81 hp / 60.4 kW
Fuel & Capacities
22.7 gal
85.9 L
Transmission
16 forward and 4 reverse
Operating Weight
5247 to 6172 pounds
Overview
 | 1986 - 1997
M30 SeriesUtility tractor
M30 Series
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Kubota |
Utility tractor | |
Variants | |
|---|---|
M8030F | 2WD |
M8030DT | 4WD |
M8030DTM | mudder |
Kubota M8030 Engine | |
|---|---|
Kubota 4.3L 4-cyl diesel | |
Engine details ...  |
Kubota M8030 Transmission | |
|---|---|
16-speed fully synchronized | |
Transmission details ...  |
Kubota M8030 Power | |
|---|---|
Engine | 81 hp
60.4 kW |
PTO (claimed) | 76 hp
56.7 kW |
Drawbar (tested) | 63.20 hp
47.1 kW |
PTO (tested) | 76.91 hp
57.4 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Differential lock | mechanical rear |
Power steering | |
Differential mechanical wet disc brakes | |
Two-post ROPS. | |
Capacity | |
|---|---|
Fuel | 22.7 gal
85.9 L |
Hydraulic system | 16.2 gal
61.3 L |
Hydraulics | |
|---|---|
Type | open center |
Capacity | 16.2 gal
61.3 L |
Pressure | 2630 psi
181.3 bar |
Valves | 1 or 2 |
Total flow | 11 gpm
41.6 lpm |
Tractor hitch | |
|---|---|
Rear Type | II |
Rear lift (at ends) | 4848 lbs
2199 kg |
Rear lift (at 24"/610mm) | 4475 lbs
2029 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 87.4 inches
221 cm |
4WD Wheelbase | 89 inches
226 cm |
Weight | 5247 to 6172 pounds |
Front tire | 7.50-18 |
2WD Rear tire | 18.4-30 |
Full dimensions and tires ...  | |
References | |
|---|---|
 | |
Front Loaders published in 1988, by Kubota | |
Front Loaders B, L and M-Series published in 1994, by Kubota* | |
Product Catalog published in 1990, by Kubota | |
M30 Series - Utility/Agri/Low Profile published in 1986, by Kubota | |
*Publication contains known errors. |
Engine
Engine Detail — 261.9 ci / 4.3 L Diesel
Manufacturer | Kubota V4300 |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 261.9 ci
4.3 L |
Bore/Stroke | 4.29x4.53 inches
109 x 115 mm |
Power | 81 hp
60.4 kW |
Air cleaner | dual dry element |
Compression | 17:1 |
Rated RPM | 2400 |
Starter volts | 12 |
Oil capacity | 13.9 qts
13.2 L |
Coolant capacity | 14.4 qts
13.6 L |
Transmission
Transmission — 16 forward and 4 reverse fully synchronized
Type | fully synchronized |
Gears | 16 forward and 4 reverse |
Oil capacity | 64.7 qts
61.2 L |
 | |
Dimensions
Kubota M8030 Tires | |
|---|---|
2WD Standard tires (ag) | Front: 7.50-18. Rear: 18.4-30 |
4WD Standard tires (ag) | Front: 11.2-24. Rear: 18.4-30 |
Front: 7.50-16. Rear: 16.9-24 (Low-profile 2WD) | |
Front: 9.5-20. Rear: 16.9-24 (Low-profile 4WD) | |
2WD Optional tires (ag) | Front: 7.50-18. Rear: 16.9-34 |
4WD Optional tires (ag) | Front: 12.4-24. Rear: 16.9-34 |
Dimensions | |
|---|---|
2WD Wheelbase | 87.4 inches
221 cm |
4WD Wheelbase | 89 inches
226 cm |
2WD Length | 141 inches
358 cm |
4WD Length | 156 inches
396 cm |
Width | 83.5 inches
212 cm |
76.1 inches (Low-Profile)
193 cm | |
2WD Ground clearance | 21.1 inches
53 cm |
4WD Ground clearance | 15.4 inches
39 cm |
12.4 inches (Low-Profile 4WD)
31 cm | |
16.7 inches (Low-Profile 2WD)
42 cm | |
2WD Front tread | 56.7 to 80.3 inches
144 to 203 cm |
4WD Front tread | 57.9 to 61.8 inches
147 to 156 cm |
Rear tread | 63.5 to 76.4 inches
161 to 194 cm |
Kubota M8030 Weight | |
|---|---|
2WD Shipping | 5247 lbs
2380 kg |
4WD Shipping | 6172 lbs
2799 kg |
Ballasted | 9970 lbs
4522 kg |
Kubota M8030 Height | |
|---|---|
Hood | 59.4 inches
150 cm |
56.5 inches (Low-Profile)
143 cm | |
Exhaust | 91.3 inches
231 cm |
Tests
Nebraska Tractor Test 1598 | |
|---|---|
Diesel 16-speed 4WD
May 15 - June 4, 1986
Link: Nebraska Tractor Test 1598 file | |
PTO performance | |
Power at rated engine speed | 76.91 hp
57.4 kW |
Fuel use | 4.7 gal/hour
17.8 l/hour |
Power at rated PTO speed | 70.47 hp
52.5 kW |
Fuel use | 4.1 gal/hour
15.5 l/hour |
Drawbar performance | |
Max power | 63.20 hp
47.1 kW |
Fuel use | 4.6 gal/hour
17.4 l/hour |
Max pull | 8,102 lbs
3675 kg |
Attachments
Attachment overview | |
|---|---|
Kubota M1250 loader | |
Kubota M1880A loader |
Photos
Kubota M8030 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Kubota M8030 based on its 81 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 3 to 4 Bottom (16")3 - 4 铧 (40 cm) | Heavy Duty | Suitable for medium loam and stubble turnover. |
Rotary Cutter / MowerMowing & Clearing | 7 to 8 ft (84-96 in)2.1 - 2.4 m | Heavy Duty | Heavy-duty twin spindle cutter for overgrown acreage. |
Rotary TillerSeedbed Prep | 78 to 84 in200 - 215 cm | Heavy Duty | Heavy commercial tiller with multi-speed gearbox. |
Disc HarrowSecondary Tillage | 10 to 14 ft Tandem / Offset3.0 - 4.2 m 重型交错耙 | Heavy Duty | Aggressive residue cutting in corn/cotton stubble. |
Hay BalerHay & Forage | 4x4 to 4x5 Round Baler1.2x1.5 m 紧凑圆捆机 | Heavy Duty | Silage and dry hay; 540 RPM PTO with slip-clutch. |
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 M8030.
Estimated Continuous Field Runtime: 5.4 hrs
Approximately 5.4 hours of continuous field operation at ~75% rated power on a full tank (22.7 gal / 85.9 L).
Estimated 75% Load Fuel Burn~4.2 gal/hr (15.9 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 M8030 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Kubota M8030.
Converted Equivalents:
Horsepower (HP)81 hp
Kilowatts (kW)60.4 kW
Metric Horsepower (PS / CV)82.1 PS
Direct Competitor Comparison
Compare Kubota M8030 against same-era industry alternatives in the same horsepower class.
Current Model
Kubota
Kubota M8030
Engine Power:Diesel (listed): 81 hp / 60.4 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 734
Engine Power:73
Production Years:1972 - 1974
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