John Deere 66
The John Deere 66 is a tractor produced by John Deere Lawn Tractors. It is equipped with a 221 cc 13.53 ci engine. The listed engine power is Gasoline (listed): 6 hp / 4.5 kW. Transmission: 5 forward and 1 reverse. Operating weight: 305 lbs (recoil) 138 kg.
Engine Power
Gasoline (listed): 6 hp / 4.5 kW
Fuel & Capacities
1 gal
3.8 L
Transmission
5 forward and 1 reverse
Operating Weight
305 lbs (recoil)
138 kg
Overview
![]() | 1975 - 1977
Riding lawn mower |
|---|
Production | |
|---|---|
Manufacturer | John Deere |
Riding lawn mower | |
Built in Horicon, Wisconsin, USA | |
John Deere 66 Engine | |
|---|---|
6HP Tecumseh 221cc 1-cyl gasoline | |
Fuel tank | 1 gal
3.8 L |
Engine details ... | |
John Deere 66 Transmission | |
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5-speed gear | |
Transmission details ... |
Mechanical | |
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Two-wheel drive | |
Manual steering | |
Disc brakes | |
Open operator station |
Power Take-off (PTO) | |
|---|---|
Mid PTO | independent |
Clutch | mechanical |
Dimensions & Tires | |
|---|---|
Weight | 305 to 335 pounds |
Front tire | 4.80x4.00-8 |
Rear tire | 11x4.00-5 |
Full dimensions and tires ... | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
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![]() | |
Operator's Manual 66 and 68 Riding Mowers (OM-M80552) published in 1976 | |
Riding Mowers published in 1975, by John Deere | |
Riding Mowers published in 1978, by John Deere | |
John Deere Riding Mowers published in 1974 | |
John Deere Riding Mowers published in 1976 |
Engine
Engine Detail — 221 cc / 13.53 ci Gasoline
Manufacturer | Tecumseh V60 |
Fuel Type | Gasoline |
Configuration | 1-cylinder, air-cooled vertical-shaft |
Displacement | 221 cc
13.53 ci |
Bore/Stroke | 2.625x2.50 inches
67 x 64 mm |
Power | 6 hp
4.5 kW |
Air cleaner | dry element |
Idle RPM | 1750-3700 |
Starter | manual recoil |
electric OptOptional | |
Starter volts | 12 |
Sparkplug | Champion J-8 |
Sparkplug gap | 0.030 inches
0.762 mm |
Point gap | 0.020 inches
0.508 mm |
Oil capacity | 0.85 qts
0.8 L |
Transmission
Transmission — 5 forward and 1 reverse belt-driven gear
Type | belt-driven gear |
Gears | 5 forward and 1 reverse |
![]() | |
Dimensions
John Deere 66 Tires | |
|---|---|
Lawn/turf front | 4.80x4.00-8 |
Lawn/turf rear | 11x4.00-5 |
Dimensions | |
|---|---|
Length | 58.5 inches
148 cm |
Height (steering wheel) | 38 inches
96 cm |
Weight | 305 lbs (recoil)
138 kg |
335 lbs (electric)
151 kg | |
Attachments
Attachment overview | |
|---|---|
30" mid-mount mower deck | |
Blade |
30" Mower deck | |
|---|---|
Type | mid-mount John Deere |
1-blade with manual lift | |
Cutting width | 30 inches
76 cm |
Overall width | 41 inches
104 cm |
Cut height | 1 to 4 inch
2 to 10 cm |
Photos
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for John Deere Lawn Tractors John Deere 66.
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
John Deere Lawn Tractors John Deere 66 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere Lawn Tractors John Deere 66.
Converted Equivalents:
Horsepower (HP)6 hp
Kilowatts (kW)4.5 kW
Metric Horsepower (PS / CV)6.1 PS
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