Farmall 666 Tests


Farmall 666 tractor photo
1972 - 1976
Row-Crop tractor

Note: the Farmall model 666 is the same as the International Harvester 666. The following data is from the 666 listing.
Tractor Tests
NTTL 1151: 312 diesel Torque Amplifier 2WD
NTTL 1152: gasoline Torque Amplifier 2WD
NTTL 1154: gasoline hydrostatic 2WD
NTTL 1155: diesel hydrostatic 2WD
Nebraska Tractor Test 1151
666 fuel use from test 1151
Nebraska Tractor Test 1151
312 diesel Torque Amplifier 2WD
November 3 - 14, 1973
Link: Nebraska Tractor Test 1151 file
PTO performance
Power at rated engine speed66.29 hp
49.4 kW
Fuel use4.7 gal/hour
17.8 l/hour
Drawbar performance
Max power58.01 hp
43.3 kW
Fuel use4.6 gal/hour
17.4 l/hour
Gear 3-Direct used for power test.
Max pull8,012 lbs
3634 kg
Gear 2-TA used for pull test.
Nebraska Tractor Test 1152
666 fuel use from test 1152
Nebraska Tractor Test 1152
Gasoline Torque Amplifier 2WD
November 5 - December 3, 1973
Link: Nebraska Tractor Test 1152 file
PTO performance
Power at rated engine speed66.30 hp
49.4 kW
Fuel use12.0 gal/hour
45.4 l/hour
Drawbar performance
Max power57.29 hp
42.7 kW
Fuel use5.7 gal/hour
21.6 l/hour
Gear 3-Direct used for power test.
Max pull7,981 lbs
3620 kg
Gear 2-TA used for pull test.
Nebraska Tractor Test 1154
666 fuel use from test 1154
Nebraska Tractor Test 1154
Gasoline hydrostatic 2WD
November 14 - December 3, 1973
Link: Nebraska Tractor Test 1154 file
PTO performance
Power at rated engine speed69.61 hp
51.9 kW
Fuel use6.9 gal/hour
26.1 l/hour
Power at rated PTO speed64.10 hp
47.8 kW
Fuel use5.8 gal/hour
22.0 l/hour
Drawbar performance
Max power53.86 hp
40.2 kW
Fuel use7.7 gal/hour
29.1 l/hour
Max pull8,427 lbs
3822 kg
Nebraska Tractor Test 1155
666 fuel use from test 1155
Nebraska Tractor Test 1155
Diesel hydrostatic 2WD
November 14 - December 3, 1973
Link: Nebraska Tractor Test 1155 file
PTO performance
Power at rated engine speed69.51 hp
51.8 kW
Fuel use5.6 gal/hour
21.2 l/hour
Power at rated PTO speed65.41 hp
48.8 kW
Fuel use5.3 gal/hour
20.1 l/hour
Drawbar performance
Max power53.10 hp
39.6 kW
Fuel use5.6 gal/hour
21.2 l/hour
Max pull8,310 lbs
3769 kg
Page information
Peter Easterlund - owner of TractorData.com
Copyright 2024 TractorData.com®
TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999.
Peter Easterlund - owner/author
Email: Peter@TractorData.com
Updated on February 6, 2024
©2000-2024 - TractorData.com®. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Consult official literature from the manufacturer before attempting any service or repair.