Long 445
The Long 445 is a tractor produced by Long. It is equipped with a 143 ci 2.3 L engine. The listed engine power is Diesel (listed): 45 hp / 33.6 kW. Transmission: 9 forward and 3 reverse. Operating weight: 3850 to 4480 pounds.
Engine Power
Diesel (listed): 45 hp / 33.6 kW
Fuel & Capacities
14.25 gal
53.9 L
Transmission
9 forward and 3 reverse
Operating Weight
3850 to 4480 pounds
Overview
 | 1972 - 1976
Utility tractorUTB/Universal built
Utility tractor
UTB/Universal built |
|---|
Production | |
|---|---|
Distributor | Long |
Manufacturer | UTB/Universal |
Utility tractor | |
Built in Brasov, Romania | |
Variants | |
|---|---|
445DT | 4WD |
Long 445 Engine | |
|---|---|
Uzina 2.3L 3-cyl diesel | |
Fuel tank | 14.25 gal
53.9 L |
Engine details ...  | |
Long 445 Power | |
|---|---|
Engine | 45 hp
33.6 kW |
PTO (claimed) | 41.9 hp
31.2 kW |
Drawbar (tested) | 36.98 hp
27.6 kW |
PTO (tested) | 41.93 hp
31.3 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Differential lock | mechanical rear |
Steering | manual |
power assist OptOptional | |
Independent contracting band brakes | |
Open operator station. | |
Hydraulics | |
|---|---|
Type | open center |
Pressure | 2133 psi
147.1 bar |
Pump flow | 5.75 gpm
21.8 lpm |
Tractor hitch | |
|---|---|
Rear Type | II/I |
Control | position and draft control |
Rear lift | 2660 lbs
1206 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | live *Dual-stage clutch. |
Rear PTO Type | 540 (1.375) |
Engine RPM | 540@1970 |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 75 inches
190 cm |
4WD Wheelbase | 71.25 inches
180 cm |
Weight | 3850 to 4480 pounds |
Front tire | 6.00-16 |
Rear tire | 14.9-28 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Batteries | 2 |
Battery volts | 6 |
Battery AH | 172 |
References | |
|---|---|
 | |
445 Diesel Tractor published in 1972, by Long | |
445 Diesel Tractor published in 1975, by Long | |
445-DT Four-Wheel Drive Agricultural Tractor published in 1973, by Long |
Engine
Engine Detail — 143 ci / 2.3 L Diesel
Manufacturer | Uzina |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 143 ci
2.3 L |
Bore/Stroke | 3.74x4.33 inches
95 x 110 mm |
Power | 45 hp
33.6 kW |
Fuel system | direct injection |
Air cleaner | oil bath |
Pre-heating | thermostart |
Compression | 17:1 |
Rated RPM | 2400 |
Starter volts | 12 |
Oil capacity | 8.25 qts
7.8 L |
Coolant capacity | 13.5 qts
12.8 L |
Transmission
Transmission options | |
|---|---|
6-speed partially synchronized | |
9-speed creeper |
Transmission — 6 forward and 2 reverse partially synchronized
Type | partially synchronized |
Gears | 6 forward and 2 reverse |
Clutch | 254mm dry disc |
Oil capacity | 18 qts
17.0 L |
Three gears, plus reverse, in two ranges. Gear pairs 2/3 and 5/6 are synchronized. | |
With 14.9-28 rear tires. | |
 | |
Transmission — 9 forward and 3 reverse creeper
Type | creeper |
Gears | 9 forward and 3 reverse |
Clutch | 254mm dry disc |
Oil capacity | 18 qts
17.0 L |
With 14.9-28 rear tires. | |
 | |
Dimensions
Long 445 Tires | |
|---|---|
Ag front | 6.00-16 |
Ag rear | 14.9-28 |
Ag rear | 14.9-28 |
Lawn/turf front | 7.50-16 |
Lawn/turf rear | 18.4-16A |
Dimensions | |
|---|---|
2WD Wheelbase | 75 inches
190 cm |
4WD Wheelbase | 71.25 inches
180 cm |
Length | 115 inches
292 cm |
Ground clearance | 18.5 inches
46 cm |
2WD Front tread | 50.4 to 77.5 inches
128 to 196 cm |
4WD Front tread | 56.25 inches
142 cm |
Rear tread | 47.25 to 74.6 inches
120 to 189 cm |
Long 445 Weight | |
|---|---|
Shipping | 3850 lbs
1746 kg |
Operating | 4480 lbs
2032 kg |
Ballasted | 7800 lbs
3538 kg |
Long 445 Height | |
|---|---|
2WD Steering wheel | 57 inches
144 cm |
4WD Steering wheel | 59.5 inches
151 cm |
Hood | 54 inches
137 cm |
Tests
Nebraska Tractor Test 1108 | |
|---|---|
Diesel 6-speed 2WD
September 20 - 28, 1972
Link: Nebraska Tractor Test 1108 file | |
PTO performance | |
Power at rated engine speed | 41.93 hp
31.3 kW |
Fuel use | 3.1 gal/hour
11.7 l/hour |
Power at rated PTO speed | 36.53 hp
27.2 kW |
Fuel use | 2.7 gal/hour
10.2 l/hour |
Drawbar performance | |
Max power | 36.98 hp
27.6 kW |
Fuel use | 3.1 gal/hour
11.7 l/hour |
Gear 4 used for power test. | |
Max pull | 5,910 lbs
2680 kg |
Gear 1 used for pull test. | |
Photos
Two-wheel drive Long 445
Four-wheel drive Long 445DT
Recommended Implements & Sizing Guide
Engineering recommendations for Long 445 based on its 45 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 | 6 ft (72 in)1.8 m | Medium Duty | Medium pasture clearing; rear slip-clutch recommended. |
Rotary TillerSeedbed Prep | 66 to 72 in165 - 180 cm | Medium Duty | Standard utility tiller; slip clutch protection required. |
Disc HarrowSecondary Tillage | 7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙 | Medium Duty | Field leveling and clod breaking behind plows. |
Hay BalerHay & Forage | Small Square Baler (14x18")小方捆打捆机 (36x46 cm) | Medium Duty | Classic 2-string baler for horse and small livestock hay. |
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 Long 445.
Estimated Continuous Field Runtime: 6.1 hrs
Approximately 6.1 hours of continuous field operation at ~75% rated power on a full tank (14.3 gal / 53.9 L).
Estimated 75% Load Fuel Burn~2.3 gal/hr (8.9 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
Long 445 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Long 445.
Converted Equivalents:
Horsepower (HP)45 hp
Kilowatts (kW)33.6 kW
Metric Horsepower (PS / CV)45.6 PS
Direct Competitor Comparison
Compare Long 445 against same-era industry alternatives in the same horsepower class.
Current Model
Long
Long 445
Engine Power:Diesel (listed): 45 hp / 33.6 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 404
Engine Power:40.8
Production Years:1961 - 1968