international harvester 660

1959 - 1963

Standard-tread tractor

Standard-tread tractor

NTTL 715: diesel TA 2WD

NTTL 721: gasoline TA 2WD

NTTL 722: LP gas TA 2WD

Diesel TA 2WD August 31 - September 5, 1959 Link: Nebraska Tractor Test 715 file

PTO performance

Power at rated engine speed

78.78 hp 58.7 kW

Fuel use

5.5 gal/hour 20.8 l/hour

Drawbar performance

Max power

64.43 hp 48.0 kW

Fuel use

5.2 gal/hour 19.7 l/hour

Max pull

11,046 lbs 5010 kg

Gear 2-TA used for pull test.

Gasoline TA 2WD October 1 - 12, 1959 Link: Nebraska Tractor Test 721 file

PTO performance

Power at rated engine speed

81.39 hp 60.7 kW

Fuel use

6.4 gal/hour 24.2 l/hour

Drawbar performance

Max power

70.21 hp 52.4 kW

Fuel use

6.3 gal/hour 23.8 l/hour

LP gas TA 2WD October 3 - 12, 1959 Link: Nebraska Tractor Test 722 file

PTO performance

Power at rated engine speed

80.63 hp 60.1 kW

Fuel use

8.9 gal/hour 33.7 l/hour

Drawbar performance

Max power

69.66 hp 51.9 kW

Fuel use

8.8 gal/hour 33.3 l/hour