Oliver 660
The Oliver 660 is a tractor produced by Oliver. It is equipped with a 155 ci 2.5 L engine. Transmission: 6 forward and 2 reverse. Operating weight: 3128 to 3178 pounds.
Fuel & Capacities
13 gal
49.2 L
Transmission
6 forward and 2 reverse
Operating Weight
3128 to 3178 pounds
Overview
![]() | 1959 - 1964
Row-Crop tractor |
|---|
Production | |
|---|---|
Manufacturer | Oliver |
Row-Crop tractor | |
Original price was $3,450 in 1964 | |
Oliver 660 Transmission | |
|---|---|
6-speed unsynchronized gear | |
Transmission details ... |
Oliver 660 Power | |
|---|---|
PTO (claimed) | 41 hp
30.6 kW |
Plows | 3 |
Drawbar (tested) | 27.99 hp
20.9 kW |
Belt (tested) | 33.69 hp
25.1 kW |
Performance test details ... | |
Mechanical | |
|---|---|
Two-wheel drive | |
Open operator station. |
Capacity | |
|---|---|
Fuel | 13 gal
49.2 L |
Hydraulic system | 9.5 gal
36.0 L |
Hydraulics | |
|---|---|
Capacity | 9.5 gal
36.0 L |
Pump flow | 8 gpm
30.3 lpm |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 |
Engine RPM | 533@1750 |
Dimensions & Tires | |
|---|---|
Wheelbase | 92 inches
233 cm |
Weight | 3128 to 3178 pounds |
Front tire | 5.00-16 |
Rear tire | 9-38 |
Full dimensions and tires ... | |
References | |
|---|---|
![]() | |
New Full 3-Plow 660 Tractor published in 1958, by Oliver |
Engine
Engine options | |
|---|---|
Waukesha-Oliver 2.5L 4-cyl gasoline | |
Waukesha-Oliver 2.5L 4-cyl diesel |
Engine Detail — 155 ci / 2.5 L Gasoline
Manufacturer | Waukesha-Oliver |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 155 ci
2.5 L |
Bore/Stroke | 3.62x3.75 inches
92 x 95 mm |
Compression | 7.75:1 |
Rated RPM | 2000 |
Starter volts | 12 |
Oil capacity | 4 qts
3.8 L |
Coolant capacity | 14 qts
13.2 L |
Engine Detail — 155 ci / 2.5 L Diesel
Manufacturer | Waukesha-Oliver |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 155 ci
2.5 L |
Bore/Stroke | 3.62x3.75 inches
92 x 95 mm |
Compression | 16:1 |
Starter volts | 12 |
Transmission
Transmission — 6 forward and 2 reverse unsynchronized gear
Type | unsynchronized gear |
Gears | 6 forward and 2 reverse |
Clutch | 235mm dry disc |
With 9-38 rear tires. | |
![]() | |
Dimensions
Oliver 660 Tires | |
|---|---|
Ag front | 5.00-16 |
Ag rear | 9-38 |
Ag front | 6.00-16 |
Ag rear | 10-38 |
12.4-38 | |
Dimensions | |
|---|---|
Wheelbase | 92 inches
233 cm |
Length | 134.4 inches
341 cm |
Width | 80.9 inches
205 cm |
Height | 87.4 inches
221 cm |
Gas Shipping weight | 3128 lbs
1418 kg |
Diesel Shipping weight | 3178 lbs
1441 kg |
Ground clearance | 24.1 inches
61 cm |
Tests
Tractor Tests | |
|---|---|
NTTL 541: gasoline 6-speed 2WD | |
NTTL 544: diesel 6-speed 2WD |
Nebraska Tractor Test 541 | |
|---|---|
Gasoline 6-speed 2WD
May 16 - 19, 1955
Link: Nebraska Tractor Test 541 file | |
Belt power (max) | 33.62 hp
25.1 kW |
Belt fuel use (max) | 3.1 gal/hour
11.7 l/hour |
Drawbar performance | |
Max power | 27.99 hp
20.9 kW |
Gear 4 used for power test. | |
Max pull | 4,309 lbs
1954 kg |
Gear 1 used for pull test. | |
Nebraska Tractor Test 544 | |
|---|---|
Diesel 6-speed 2WD
May 19 - 26, 1955
Link: Nebraska Tractor Test 544 file | |
Belt power (max) | 33.69 hp
25.1 kW |
Belt fuel use (max) | 2.4 gal/hour
9.1 l/hour |
Drawbar performance | |
Max power | 27.48 hp
20.5 kW |
Gear 4 used for power test. | |
Max pull | 4,393 lbs
1992 kg |
Gear 1 used for pull test. | |
Photos
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Oliver 660.
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 660 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Oliver 660.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
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