Unimog 30
The Unimog 30 is a tractor produced by Unimog. It is equipped with a 107.8 ci 1.8 L engine. The listed engine power is Diesel (listed): 30 hp / 22.4 kW. Transmission: 8 forward and 2 reverse. Drive type: 4x4 4WD. Operating weight: 4,900 lbs 2222 kg.
Engine Power
Diesel (listed): 30 hp / 22.4 kW
Drive & Traction
4x4 4WD
Fuel & Capacities
10.88 gal
41.2 L
Transmission
8 forward and 2 reverse
Operating Weight
4,900 lbs
2222 kg
Overview
 | 1956 - 1960
Truck-type tractor |
|---|
Production | |
|---|---|
Manufacturer | Unimog (a part of Mercedes-Benz) |
Truck-type tractor | |
Built in Gaggenau, Baden-Württemberg, Germany | |
The Unimog 30 Diesel was a variant of the Unimog 411 sold in North America for farm use. | |
Unimog 30 Engine | |
|---|---|
Mercedes-Benz 1.8L 4-cyl diesel | |
Fuel tank | 10.88 gal
41.2 L |
Engine details ...  | |
Unimog 30 Transmission | |
|---|---|
8-speed | |
Transmission details ...  |
Unimog 30 Power | |
|---|---|
Engine | 30 hp
22.4 kW |
Drawbar (tested) | 25.02 hp
18.7 kW |
Belt (tested) | 28.43 hp
21.2 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Drive | 4x4 4WD |
Four-wheel hydraulic internal expanding shoe brakes | |
Open operator station or soft cab. | |
Dimensions & Tires | |
|---|---|
Wheelbase | 67.7 inches
171 cm |
Weight | 4,900 lbs
2222 kg |
Front tire | 7.50x18 |
Rear tire | 7.50x18 |
Full dimensions and tires ...  | |
Belt Pulley | |
|---|---|
Diameter | 12.4 inches
31 cm |
Width | 6.1 inches
15 cm |
RPM | 1080 |
Speed | 3500 ft/min
1066.80 meters/min |
Engine
Engine Detail — 107.8 ci / 1.8 L Diesel
Manufacturer | Mercedes-Benz OM636 |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled vertical I-head |
Displacement | 107.8 ci
1.8 L |
Bore/Stroke | 2.950x3.9375 inches
75 x 100 mm |
Power | 30 hp
22.4 kW |
Air cleaner | oil bath |
Compression | 19:1 |
Rated RPM | 2550 |
Starter volts | 12 |
Oil capacity | 7 qts
6.6 L |
Coolant capacity | 13.8 qts
13.1 L |
Transmission
Transmission — 8 forward and 2 reverse
Gears | 8 forward and 2 reverse |
Clutch | dry disc |
 | |
Dimensions
Unimog 30 Tires | |
|---|---|
Ag front | 7.50x18 |
Ag rear | 7.50x18 |
Dimensions | |
|---|---|
Wheelbase | 67.7 inches
171 cm |
Height | 81 inches
205 cm |
Operating weight | 4,900 lbs
2222 kg |
Ballasted weight | 6,729 lbs
3052 kg |
Front tread | 50.7 to 59 inches
128 to 149 cm |
Rear tread | 50.7 to 59 inches
128 to 149 cm |
Tests
Nebraska Tractor Test 607 | |
|---|---|
Diesel 6-speed 4WD
March 5 - 13, 1957
Link: Nebraska Tractor Test 607 file | |
Belt power (max) | 28.43 hp
21.2 kW |
Belt fuel use (max) | 2.3 gal/hour
8.7 l/hour |
Drawbar performance | |
Max power | 25.02 hp
18.7 kW |
Gear 2 used for power test. | |
Max pull | 4,806 lbs
2180 kg |
Gear 1C used for pull test. | |
Photos
Unimog 30
Recommended Implements & Sizing Guide
Engineering recommendations for Unimog 30 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 Unimog 30.
Estimated Continuous Field Runtime: 7 hrs
Approximately 7 hours of continuous field operation at ~75% rated power on a full tank (10.9 gal / 41.2 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
Unimog 30 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Unimog 30.
Converted Equivalents:
Horsepower (HP)30 hp
Kilowatts (kW)22.4 kW
Metric Horsepower (PS / CV)30.4 PS
Direct Competitor Comparison
Compare Unimog 30 against same-era industry alternatives in the same horsepower class.
Current Model
Unimog
Unimog 30
Engine Power:Diesel (listed): 30 hp / 22.4 kW
★ Baseline Reference