SOMECA Som 25
The SOMECA Som 25 is a tractor produced by Someca. It is equipped with a 69.3 ci 1.1 L engine. The listed engine power is Diesel (listed): 25 hp / 18.6 kW. Transmission: 6 forward and 2 reverse. Operating weight: 2535 lbs 1149 kg.
Engine Power
Diesel (listed): 25 hp / 18.6 kW
Fuel & Capacities
Diesel
Transmission
6 forward and 2 reverse
Operating Weight
2535 lbs
1149 kg
Overview
 | 1960 - 1963
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | SOMECA |
Utility tractor | |
Built in Saint-Denis, France | |
SOMECA Som 25 Engine | |
|---|---|
FIAT 1.1L 2-cyl diesel | |
Engine details ...  |
SOMECA Som 25 Transmission | |
|---|---|
6-speed gear | |
Transmission details ...  |
SOMECA Som 25 Power | |
|---|---|
Engine | 25 hp
18.6 kW |
Mechanical | |
|---|---|
Two-wheel drive | |
Differential lock | mechanical rear |
Manual steering | |
Open operator station. | |
Tractor hitch | |
|---|---|
Rear Type | I |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540 (1.375) |
Dimensions & Tires | |
|---|---|
Wheelbase | 66.9 inches
169 cm |
Weight | 2535 lbs
1149 kg |
Front tire | 4.50-16 |
Rear tire | 10-24 |
Full dimensions and tires ...  | |
References | |
|---|---|
 | |
New SOM.25 published in 1960, by SOMECA | |
Operator's Manual SOM. 25 D (10373) published in 1960 | |
SOM.25 D published in 1961, by SOMECA |
Engine
Engine Detail — 69.3 ci / 1.1 L Diesel
Manufacturer | FIAT 614.010 |
Fuel Type | Diesel |
Configuration | 2-cylinder, liquid-cooled |
Displacement | 69.3 ci
1.1 L |
Bore/Stroke | 3.35x3.94 inches
85 x 100 mm |
Power | 25 hp
18.6 kW |
Compression | 21.5:1 |
Rated RPM | 2300 |
Torque | 46.7 lb-ft
63.3 Nm |
Torque RPM | 1800 |
Starter volts | 12 |
Transmission
Transmission — 6 forward and 2 reverse gear
Type | gear |
Gears | 6 forward and 2 reverse |
Clutch | mechanical dry disc |
 | |
Dimensions
SOMECA Som 25 Tires | |
|---|---|
Ag front | 4.50-16 |
Ag rear | 10-24 |
Ag front | 4.00-15 |
Ag rear | 9-24 |
Dimensions | |
|---|---|
Wheelbase | 66.9 inches
169 cm |
Length | 101.6 inches
258 cm |
Width | 53.2 inches
135 cm |
Height (hood) | 47.2 inches
119 cm |
Weight | 2535 lbs
1149 kg |
Ground clearance | 19.7 inches
50 cm |
Photos
SOMECA Som 25 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Someca Som 25 based on its 25 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 | 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 Someca Som 25.
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
Someca Som 25 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Someca Som 25.
Converted Equivalents:
Horsepower (HP)25 hp
Kilowatts (kW)18.6 kW
Metric Horsepower (PS / CV)25.3 PS
Direct Competitor Comparison
Compare SOMECA Som 25 against same-era industry alternatives in the same horsepower class.
Current Model
Someca
SOMECA Som 25
Engine Power:Diesel (listed): 25 hp / 18.6 kW
★ Baseline Reference
Related models
SOMECA Som 55
- Power:
- 55
- Production years:
- 1961 - 1963
SOMECA DA 50
- Power:
- 38.9
- Production years:
- 1952 - 1955
SOMECA Som 45
- Power:
- 40