Ford 6600 Tractor

Manufacturer Ford
Price 11,500(USD)
Model 6600
Equipment Type Utility Tractors
Factory None

NEBRASKA TRACTOR TEST 998

Description Gasoline 8-speed 2WD/November 7 - 25, 1968/Link: Nebraska Tractor Test 998 file/PTO performance/Drawbar performance/Gear 4 used for power test./Gear 2 used for pull test.
Power at rated engine speed 67.31 hp/50.2 kW
Fuel use 6.0 gal/hour/22.7 l/hour
Power at rated PTO speed 63.73 hp/47.5 kW
Max power 57.87 hp/43.2 kW
Max pull 7247 lbs/3287 kg

NEBRASKA TRACTOR TEST 1217

Description Diesel 8-speed 2WD/June 14 - 23, 1976/Link: Nebraska Tractor Test 1217 file/PTO performance/Drawbar performance/Gear 4 used for power test./Gear 2 used for pull test.
Power at rated engine speed 70.56 hp/52.6 kW
Fuel use 4.5 gal/hour/17.0 l/hour
Power at rated PTO speed 70.07 hp/52.3 kW
Max power 55.68 hp/41.5 kW
Max pull 7,131 lbs/3234 kg

NEBRASKA TRACTOR TEST 1224

Description Diesel 16-speed 2WD/September 22 - October 12, 1976/Link: Nebraska Tractor Test 1224 file/PTO performance/Drawbar performance/Gear 8 used for power test./Gear 5 used for pull test.
Power at rated engine speed 68.10 hp/50.8 kW
Fuel use 4.6 gal/hour/17.4 l/hour
Power at rated PTO speed 68.05 hp/50.7 kW
Max power 55.73 hp/41.6 kW
Max pull 7,267 lbs/3296 kg

FORD 6600 POWER

Engine (gross) 75.5 hp/56.3 kW
Engine (net) 72.5 hp/54.1 kW
PTO (claimed) 70 hp/52.2 kW
Drawbar (tested) 57.87 hp/43.2 kW
PTO (tested) 70.56 hp/52.6 kW

ENGINES OVERVIEW

The Ford 6600 tractor features a choice of three engine options: the 4.2L and 4.4L diesel engines providing robust torque and fuel efficiency, or a 4.2L gasoline engine for lighter operations. Key advantages include versatility for various agricultural tasks and efficient fuel consumption, particularly with the diesel variants. However, users must consider the additional maintenance requirements of diesel engines and potential fuel availability concerns depending on the region.

Description Ford 4.2L 4-cyl diesel/Ford 4.4L 4-cyl diesel/Ford 4.2L 4-cyl gasoline

ENGINE DETAIL 1

The Ford 6600 tractor, powered by a liquid-cooled 4-cylinder diesel engine with a displacement of 4.2 L, offers a gross power output of 75.5 hp at 2100 RPM and a peak torque of 200 lb-ft at 1400 RPM. Its oil bath air cleaner and high compression ratio (16.3:1) enhance fuel efficiency, making it suitable for demanding agricultural tasks. However, the relatively modest coolant (13 qts) and oil capacity (9 qts) may necessitate regular maintenance checks to avoid overheating during extended operation.

Description Ford/diesel/4-cylinder/liquid-cooled
Displacement 256 ci/4.2 L
Bore/Stroke 4.4094x4.2126 inches/112 x 107 mm
Power (gross) 75.5 hp/56.3 kW
Air cleaner oil bath
Compression 16.3:1
Rated RPM 2100
Torque 200 lb-ft/271.2 Nm
Torque RPM 1400
Starter volts 12
Oil capacity 9 qts/8.5 L
Coolant capacity 13 qts/12.3 L

ENGINE DETAIL 2

The Ford 6600 tractor features a robust 4-cylinder liquid-cooled diesel engine with a displacement of 267.9 ci (4.4 L), delivering reliable performance at rated RPMs of 2100; this makes it suitable for moderate agricultural tasks. The square bore and stroke design (4.4094 inches) ensures balanced power delivery and efficiency across a range of operations. However, be mindful of availability constraints, as the larger Blue Power Special engine was only offered in 1981, potentially limiting parts sourcing and service options for that variant.

Description Ford/diesel/4-cylinder/liquid-cooled/The larger Blue Power Special engine was available in 1981 only.
Displacement 267.9 ci/4.4 L
Bore/Stroke 4.4094x4.4094 inches/112 x 112 mm
Rated RPM 2100
Starter volts 12

ENGINE DETAIL 3

The Ford 6600 tractor features a gasoline 4-cylinder engine with a displacement of 256 ci (4.2 L) and a compression ratio of 7.75:1, providing moderate power for agricultural tasks. Its bore and stroke dimensions (4.4 x 4.2 inches) suggest a balanced engine design that can deliver efficient torque at a rated RPM of 2100, making it suitable for plowing and towing. Note that starting in 1979, only diesel variants were available, which may affect parts availability and fuel preferences for buyers considering vintage models.

Description Ford/gasoline/4-cylinder/liquid-cooled/The gasoline engine was available on the 6600 through 1978. Starting in 1979, only the diesel engine was available.
Displacement 256 ci/4.2 L
Bore/Stroke 4.4x4.2 inches/112 x 107 mm
Compression 7.75:1
Rated RPM 2100
Starter volts 12

FORD 6600 ENGINES

The Ford 6600 tractor is equipped with either a 4.2L or 4.4L four-cylinder diesel engine, offering reliable power and fuel efficiency; the diesel variants provide better torque and fuel economy than the gasoline option. With a standard fuel tank capacity of 20 gallons (75.7 L), or an optional 49L tank, users can choose their fuel storage based on operation duration and workload requirements, enhancing productivity in field applications. However, the choice of engine type may impact maintenance costs and availability of parts, particularly in regions with limited diesel infrastructure.

Description Ford 4.2L 4-cyl diesel/Ford 4.4L 4-cyl diesel/Ford 4.2L 4-cyl gasoline
Fuel tank 20 gal/75.7 L/33 gal/124.9 L *With optional 49L tank.

TRANSMISSIONS OVERVIEW

The Ford 6600 tractor features an 8-speed gear transmission with an optional 16-speed two-speed power shift, providing versatility in various field conditions through precise speed control. This system enhances productivity, allowing operators to adapt to different tasks such as tillage or hauling with ease. Consider potential challenges related to maintaining hydraulic systems essential for the power shift functionality, as increased complexity can lead to higher repair costs.

Description 8-speed gear/16-speed two-speed power shift

TRANSMISSION 1

The Ford 6600 tractor features an 8-speed forward and 2-speed reverse gear transmission, allowing for versatile speed and torque management across diverse applications. Its 304mm dry disc clutch provides reliable engagement and disengagement, enhancing control during various operations such as plowing or hauling. However, the dry disc may require more frequent maintenance under heavy usage compared to hydraulic alternatives, impacting overall downtime in intensive farming scenarios.

Type gear
Gears 8 forward and 2 reverse
Clutch 304mm dry disc

TRANSMISSION 2

The Ford 6600 features a Dual-Power transmission, allowing operators to effectively manage changing loads with seamless two-speed power shifts. Its 16 forward and 4 reverse gears provide versatility and precision in various agricultural applications, enhancing productivity in fieldwork and transport scenarios. However, the complexity of the power shift system may require more maintenance and operator training compared to standard gear transmissions.

Transmission Dual-Power
Type two-speed power shift
Gears 16 forward and 4 reverse

MECHANICAL

The Ford 6600 tractor features a versatile 4x2 or 4x4 drivetrain, allowing operators to choose optimal traction for various terrains. Its mechanical differential lock enhances traction in challenging conditions while the power steering facilitates maneuverability, making it suitable for both farm and utility tasks. The option for an air-conditioned cab enhances operator comfort during prolonged usage, especially in adverse weather conditions, though the open station may limit protection in harsh environments.

Chassis 4x2 2WD/4x4 MFWD 4WD
Final drives inboard planetary
Differential lock mechanical rear
Steering power
Brakes differential mechanical wet disc
Cab Open operator station. Cab optional with available heater and air-conditioning.
Transmissions 8-speed gear/16-speed two-speed power shift

HYDRAULICS

Pressure 2100 psi/144.8 bar
Valves 1 or 2
Pump flow 9.7 gpm/36.7 lpm

TRACTOR HITCH

Rear Type II
Control top-link draft sensing
Rear lift 4040 lbs/1832 kg

POWER TAKE-OFF (PTO)

Rear PTO independent
Rear RPM 540/540/1000

FORD 6600 TIRES

The Ford 6600 tractor features an Ag front tire size of 7.50-16 and a rear tire size of 18.4-30, which provides a balanced distribution of weight for enhanced stability and traction on varied terrains. The larger rear tires facilitate better load handling and enhance pulling power, making it suitable for field cultivation and heavy-duty tasks. However, the specific tire sizes may limit compatibility with certain implements and require careful consideration for soil compaction in sensitive areas.

Ag front 7.50-16
Ag rear 186.9-30

DIMENSIONS

Wheelbase 88 inches/223 cm
Length 153.3 inches/389 cm
Width 73.2 inches/185 cm *Width over fenders with factory cab.
Height (hood) 68.5 inches/173 cm
Height (cab) 106.6 inches/270 cm
Clearance (front axle) 18 inches/45 cm
Front tread 52.5 to 80.5 inches/133 to 204 cm
Rear tread 66 to 90 inches/167 to 228 cm (power adjust)

FORD 6600 WEIGHT

Shipping 5475 lbs/2483 kg
Operating 5880 lbs/2667 kg (ROPS)/7020 lbs/3184 kg (cab)
Ballasted 9700 lbs/4399 kg

DIMENSIONS & TIRES

The Ford 6600 features a wheelbase of 88 inches (223 cm), providing stability for various field operations. With a weight range of 5,475 to 7,020 pounds, it offers a robust platform for towing and carrying implements, although the heavier variant may present mobility challenges on uneven terrains. Tire specifications—front 7.50-16 and rear 18.6-30—enhance traction and load distribution, making it suitable for both agricultural tasks and light industrial applications.

Wheelbase 88 inches/223 cm
Weight 5475 to 7020 pounds
Front tire 7.50-16
Rear tire 186.9-30

FORD 772 LOADER

Loader weight 930 lbs/421 kg
Height (to pin) 124 inches/314 cm
Clearance, dumped bucket 98.7 inches/250 cm
Dump reach 24 inches/60 cm
Dump angle 35°
Reach at ground 77 inches/195 cm
Rollback angle
Breakout force (lift) 3800 lbs/1723 kg
Lift to full height (at pin) 2460 lbs/1115 kg
Bucket width 48 inches/121 cm
Raise time to height 9 s
Lowering time 5.5 s
Rollback time 3 s

FORD 774 LOADER

Loader weight 1689 lbs/766 kg
Height (to pin) 176 inches/447 cm
Clearance, dumped bucket 108 inches/274 cm
Dump reach 48 inches/121 cm
Dump angle 35°
Reach at ground 83 inches/210 cm
Rollback angle 13°
Breakout force (lift) 4500 lbs/2041 kg
Lift to full height (at pin) 2000 lbs/907 kg
Bucket width 78 inches/198 cm
Raise time to height 5.5 s
Lowering time 5 s
Rollback time 5 s

FORD 772QT LOADER

Loader weight 1261 lbs/571 kg
Height (to pin) 128 inches/325 cm
Clearance, dumped bucket 105 inches/266 cm
Dump reach 43 inches/109 cm
Dump angle 45°
Reach at ground 76 inches/193 cm
Rollback angle
Breakout force (lift) 3900 lbs/1769 kg
Lift to full height (at pin) 2500 lbs/1134 kg
Bucket width 48 inches/121 cm
Raise time to height 8.5 s
Lowering time 5 s
Rollback time 3 s

6600 SERIAL NUMBERS

Location On transmission housing, front-right corner
1975 C450700
1976 C490300
1977 C527300
1978 C560500
1979 C595800
1980 C635700
1981 C660700

ELECTRICAL

Charging system alternator
Charging amps 32/51)
Battery volts 12
Battery AH 128


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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