Massey-Harris 555 Tests

Massey-Harris 555 tractor photo
1955 - 1958
Standard-tread tractor
Series map:
*Estimated engine power for comparison only.
Tractor Tests
NTTL 452: diesel 4-speed 2WD
NTTL 455: gasoline 4-speed 2WD
Nebraska Tractor Test 452
555 fuel use from test 452
Nebraska Tractor Test 452
Diesel 4-speed 2WD
October 17 - 26, 1950
Link: Nebraska Tractor Test 452 file
Belt power (max)59.04 hp
44.0 kW
Belt fuel use (max)3.9 gal/hour
14.8 l/hour
Drawbar performance
Max power51.07 hp
38.1 kW
Gear 3 used for power test.
Max pull5,865 lbs
2660 kg
Gear 1 used for pull test.
Nebraska Tractor Test 455
555 fuel use from test 455
Nebraska Tractor Test 455
Gasoline 4-speed 2WD
April 16 - May 7, 1951
Link: Nebraska Tractor Test 455 file
Belt power (max)66.91 hp
49.9 kW
Belt fuel use (max)5.9 gal/hour
22.3 l/hour
Drawbar performance
Max power57.55 hp
42.9 kW
Gear 3 used for power test.
Max pull6,377 lbs
2892 kg
Gear 1 used for pull test.
Page information
Peter Easterlund - owner of
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Peter Easterlund - owner/author
Updated on September 12, 2023
©2000-2023 -®. 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.