Oliver 1550
The Oliver 1550 is a tractor produced by Oliver. It is equipped with a 232 ci 3.8 L engine. The listed engine power is 53.3 hp 39.7 kW. Transmission: Hydra-Power. Operating weight: 7000 lbs 3175 kg.
Engine Power
53.3 hp
39.7 kW
Fuel & Capacities
Gasoline
Transmission
Hydra-Power
Operating Weight
7000 lbs
3175 kg
Overview
 | 1965 - 1969
50 SeriesRow-Crop tractor
50 Series
Row-Crop tractor |
|---|
Production | |
|---|---|
Manufacturer | Oliver |
Row-Crop tractor | |
Built in Charles City, Iowa, USA | |
Original price was $6,000 in 1969 | |
Variants | |
|---|---|
Row-crop | tricycle front, single front, or adjustable wide front |
Wheatland | standard front |
Utility | low-clearance |
Oliver 1550 Power | |
|---|---|
Gas PTO (claimed) | 53 hp
39.5 kW |
Diesel PTO (claimed) | 53 hp
39.5 kW |
LP-gas PTO (claimed) | 51 hp
38.0 kW |
Drawbar (tested) | 45.7 hp
34.1 kW |
PTO (tested) | 53.50 hp
39.9 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Steering | power assist |
Disc brakes | |
Open operator station. Oliver Continental cab optional. | |
Tractor hitch | |
|---|---|
Rear Type | II/I |
Control | lower-link draft sensing |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 |
1000 | |
540/1000 | |
Dimensions & Tires | |
|---|---|
Wheelbase | 99 inches
251 cm |
Weight | 7000 lbs
3175 kg |
Front tire | 6.00-16 |
Rear tire | 15.5-38 |
Full dimensions and tires ...  | |
References | |
|---|---|
 | |
Farm Loaders published in 1969, by Oliver |
Engine
Engine options | |
|---|---|
Oliver 3.8L 6-cyl diesel | |
Oliver 3.8L 6-cyl gasoline | |
Oliver 3.8L 6-cyl LP-gas |
Engine Detail — 232 ci / 3.8 L Diesel
Manufacturer | Oliver |
Fuel Type | Diesel |
Configuration | 6-cylinder, liquid-cooled |
Displacement | 232 ci
3.8 L |
Bore/Stroke | 3.625x3.75 inches
92 x 95 mm |
Air cleaner | dry |
Compression | 16.5:1 |
Rated RPM | 2200 |
Starter volts | 12 |
Oil capacity | 5 qts
4.7 L |
Coolant capacity | 20 qts
18.9 L |
Engine Detail — 232 ci / 3.8 L Gasoline
Manufacturer | Oliver |
Fuel Type | Gasoline |
Configuration | 6-cylinder, liquid-cooled |
Displacement | 232 ci
3.8 L |
Bore/Stroke | 3.625x3.75 inches
92 x 95 mm |
Air cleaner | dry |
Compression | 8:1 |
Rated RPM | 2200 |
Starter volts | 12 |
Oil capacity | 5 qts
4.7 L |
Coolant capacity | 20 qts
18.9 L |
Engine Detail — 232 ci / 3.8 L
Manufacturer | Oliver |
Configuration | 6-cylinder, liquid-cooled |
LP-gas | |
Displacement | 232 ci
3.8 L |
Bore/Stroke | 3.625x3.75 inches
92 x 95 mm |
Air cleaner | dry |
Compression | 8.75:1 |
Rated RPM | 2200 |
Starter volts | 12 |
Oil capacity | 5 qts
4.7 L |
Coolant capacity | 20 qts
18.9 L |
Transmission
Transmission options | |
|---|---|
12-speed partial power shift | |
6-speed unsynchronized gear |
Transmission — Hydra-Power
Transmission | Hydra-Power |
Type | partial power shift |
Gears | 12 forward and 4 reverse |
Clutch | 279.4mm dry disc |
Oil capacity | 32 qts
30.3 L |
The Hydra-Power transmission provides a two-speed power shift between direct-drive and the lower Hydra-Power range. | |
 | |
Transmission — 6 forward and 2 reverse unsynchronized gear
Type | unsynchronized gear |
Gears | 6 forward and 2 reverse |
Clutch | 279.4mm dry disc |
Oil capacity | 32 qts
30.3 L |
 | |
Dimensions
Oliver 1550 Tires | |
|---|---|
Ag front | 6.00-16 |
Ag rear | 15.5-38 |
Dimensions | |
|---|---|
Wheelbase | 99 inches
251 cm |
Length | 154.6 inches
392 cm |
Width | 81.5 inches
207 cm |
Height (exhaust) | 97.625 inches
247 cm |
Operating weight | 7000 lbs
3175 kg |
Ballasted weight | 8730 lbs
3959 kg |
Rear tread | 55 to 90.9 inches
139 to 230 cm |
Tests
Tractor Tests | |
|---|---|
NTTL 943: diesel Hydra-Power 2WD | |
NTTL 944: gasoline Hydra-Power 2WD |
Nebraska Tractor Test 943 | |
|---|---|
Diesel Hydra-Power 2WD
June 8 - 15, 1966
Link: Nebraska Tractor Test 943 file | |
PTO performance | |
Power at rated engine speed | 53.50 hp
39.9 kW |
Fuel use | 4.3 gal/hour
16.3 l/hour |
Drawbar performance | |
Max power | 45.7 hp
34.1 kW |
Fuel use | 4.4 gal/hour
16.7 l/hour |
Gear 4-Hydra used for power test. | |
Max pull | 6,636 lbs
3010 kg |
Gear 2-Hydra used for pull test. | |
Nebraska Tractor Test 944 | |
|---|---|
Gasoline Hydra-Power 2WD
June 8 - 16, 1966
Link: Nebraska Tractor Test 944 file | |
PTO performance | |
Power at rated engine speed | 53.3 hp
39.7 kW |
Fuel use | 4.9 gal/hour
18.5 l/hour |
Drawbar performance | |
Max power | 45.4 hp
33.9 kW |
Fuel use | 4.9 gal/hour
18.5 l/hour |
Gear 4-Hydra used for power test. | |
Max pull | 6,799 lbs
3084 kg |
Gear 2-Hydra used for pull test. | |
Photos
Oliver 1550 High-Crop
Oliver 1550 High-Crop
Oliver 1550 High-Crop
Oliver 1550 High-Crop
Oliver 1550 Row Crop Utility
Recommended Implements & Sizing Guide
Engineering recommendations for Oliver 1550 based on its 53.3 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 Oliver 1550.
Estimated Continuous Field Runtime: 1.8 hrs
Approximately 1.8 hours of continuous field operation at ~75% rated power on a full tank (4.9 gal / 18.5 L).
Estimated 75% Load Fuel Burn~2.8 gal/hr (10.5 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
Oliver 1550 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Oliver 1550.
Converted Equivalents:
Horsepower (HP)53.3 hp
Kilowatts (kW)39.7 kW
Metric Horsepower (PS / CV)54 PS
Direct Competitor Comparison
Compare Oliver 1550 against same-era industry alternatives in the same horsepower class.
Current Model
Oliver
Oliver 1550
Engine Power:53.3 hp
39.7 kW
★ Baseline Reference
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