Fiat 35-66
The Fiat 35-66 is a tractor produced by Fiat. It is equipped with a 94.6 ci 1.6 L engine. The listed engine power is Diesel (listed): 34.5 hp / 25.7 kW. Transmission: 16 forward and reverse. Operating weight: 3087 lbs 1400 kg.
Engine Power
Diesel (listed): 34.5 hp / 25.7 kW
Fuel & Capacities
8.6 gal
32.6 L
Transmission
16 forward and reverse
Operating Weight
3087 lbs
1400 kg
Overview
 | 1990 - 1998
66 SeriesUtility tractor
66 Series
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Fiat |
Utility tractor | |
Fiat 35-66 Engine | |
|---|---|
Lombardini 1.6L 3-cyl diesel | |
Fuel tank | 8.6 gal
32.6 L |
Engine details ...  | |
Fiat 35-66 Transmission | |
|---|---|
16-speed mechanical shuttle | |
Transmission details ...  |
Fiat 35-66 Power | |
|---|---|
Engine | 34.5 hp
25.7 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Final drives | planetary |
Differential lock | mechanical front and rear |
Power steering | |
Wet disc brakes | |
Two-post fixed ROPS. Two-post folding mid-mount ROPS available. | |
Hydraulics | |
|---|---|
Type | open center |
Pump flow | 6.08 gpm
23.0 lpm |
Tractor hitch | |
|---|---|
Rear Type | II |
Rear lift | 3032 lbs
1375 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Clutch | dry disc |
Rear PTO Type | 540/1000 (1.375) |
Engine RPM | 540@2276 |
1000@2476 | |
Dimensions & Tires | |
|---|---|
Wheelbase | 66.9 inches
169 cm |
Weight | 3087 lbs
1400 kg |
Front tire | 5.50-16 |
Rear tire | 11.2R28 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Battery volts | 12 |
References | |
|---|---|
 | |
35-66 published in 1995, by Fiat |
Engine
Engine Detail — 94.6 ci / 1.6 L Diesel
Manufacturer | Lombardini LDW 1503 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled inline |
Displacement | 94.6 ci
1.6 L |
Bore/Stroke | 3.46x3.35 inches
88 x 85 mm |
Power | 34.5 hp
25.7 kW |
Compression | 17:1 |
Rated RPM | 2800 |
Torque | 75.24 lb-ft
102.0 Nm |
Torque RPM | 2500 |
Starter | electric |
Starter volts | 12 |
Fiat 35-66 Engine | |
|---|---|
 |
Transmission
Transmission — 16 forward and reverse mechanical shuttle
Type | mechanical shuttle |
Gears | 16 forward and reverse |
Clutch | dry disc |
Four synchronized gears in four ranges with shuttle. | |
With 11.2R28 rear tires. | |
 | |
Dimensions
Fiat 35-66 Tires | |
|---|---|
Ag front | 5.50-16 (2WD) |
250/80-18 (4WD) | |
Ag rear | 11.2R28 (2WD) |
320/70R28 (4WD) | |
Dimensions | |
|---|---|
Wheelbase | 66.9 inches
169 cm |
Length | 124.8 inches
316 cm |
Width | 54.3 inches*Minimum width.
137 cm |
Height (ROPS) | 78.4 inches
199 cm |
Weight | 3087 lbs
1400 kg |
Photos
Fiat 35-66 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Fiat 35-66 based on its 34.5 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 Fiat 35-66.
Estimated Continuous Field Runtime: 4.8 hrs
Approximately 4.8 hours of continuous field operation at ~75% rated power on a full tank (8.6 gal / 32.6 L).
Estimated 75% Load Fuel Burn~1.8 gal/hr (6.8 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
Fiat 35-66 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Fiat 35-66.
Converted Equivalents:
Horsepower (HP)34.5 hp
Kilowatts (kW)25.7 kW
Metric Horsepower (PS / CV)35 PS
Direct Competitor Comparison
Compare Fiat 35-66 against same-era industry alternatives in the same horsepower class.
Current Model
Fiat
Fiat 35-66
Engine Power:Diesel (listed): 34.5 hp / 25.7 kW
★ Baseline Reference
General OrdnanceMarket Competitor
General Ordnance 14-28
Engine Power:31.1
Production Years:1919 - 1920