Massey-Harris 55
The Massey-Harris 55 is a tractor produced by Massey Harris. It is equipped with a 382 ci 6.3 L engine. The rated power output is 66.91 hp 49.9 kW. Transmission: 4 forward and 1 reverse. Operating weight: 7223 to 7571 pounds.
Engine Power
66.91 hp
49.9 kW
Fuel & Capacities
27.5 gal
104.1 L
Transmission
4 forward and 1 reverse
Operating Weight
7223 to 7571 pounds
Massey Harris Massey-Harris 55 Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
![]() | 1946 - 1955
Standard-tread tractor |
|---|---|
1946 - 1955 | |
Standard-tread tractor | |
Production | |
|---|---|
Manufacturer | Massey-Harris |
Standard-tread tractor | |
Original price was $3,850 in 1955 | |
Variants | |
|---|---|
55K | all-fuel engine |
55D | diesel engine |
Western | wide-tread |
Massey-Harris 55 Transmission | |
|---|---|
4-speed gear | |
Transmission details ... |
Massey-Harris 55 Power | |
|---|---|
Drawbar (claimed) | 41 hp
30.6 kW |
PTO (claimed) | 56 hp
41.8 kW |
Plows | 5 |
Drawbar (tested) | 57.55 hp
42.9 kW |
Belt (tested) | 66.91 hp
49.9 kW |
Performance test details ... | |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Differential mechanical expanding shoe brakes | |
Open operator station. |
Capacity | |
|---|---|
Fuel | 27.5 gal
104.1 L |
Hydraulic system | 3.5 gal
13.2 L |
Hydraulics | |
|---|---|
Capacity | 3.5 gal
13.2 L |
Total flow | 10 gpm
37.9 lpm |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540 (1.375) |
Engine RPM | 521@1350 |
Dimensions & Tires | |
|---|---|
Standard Wheelbase | 88.5 inches
224 cm |
Western Wheelbase | 90.1 inches
228 cm |
Weight | 7223 to 7571 pounds |
Front tire | 7.50x18 |
Rear tire | 14-34 |
Full dimensions and tires ... | |
References | |
|---|---|
![]() | |
Tractors published in 1946, by Massey-Harris | |
Power-Plus Tractors published in 1951, by Massey-Harris | |
Power For Your Farm published in 1953, by Massey-Harris | |
Massey-Harris Tractors published in 1954 | |
Massey-Harris Tractors published in 1955 |
Engine
Engine options | |
|---|---|
Continental 6.3L 4-cyl gasoline | |
Continental 6.3L 4-cyl diesel | |
Continental 6.3L 4-cyl all fuel | |
Continental 6.3L 4-cyl LP gas |
Engine Detail — 382 ci / 6.3 L Gasoline
Manufacturer | Continental J382 |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 382 ci
6.3 L |
Bore/Stroke | 4.50x6.00 inches
114 x 152 mm |
Air cleaner | oil bath |
Compression | 5.65:1 |
Rated RPM | 1350 |
Starter | electric |
Starter volts | 6 |
Oil capacity | 10 qts
9.5 L |
Coolant capacity | 28 qts
26.5 L |
Engine Detail — 382 ci / 6.3 L Diesel
Manufacturer | Continental J382D |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled vertical I-head |
Displacement | 382 ci
6.3 L |
Bore/Stroke | 4.50x6.00 inches
114 x 152 mm |
Air cleaner | oil bath |
Compression | 15:1 |
Rated RPM | 1350 |
Starter | electric |
Starter volts | 12 |
Engine Detail — 382 ci / 6.3 L
Manufacturer | Continental J382 |
Configuration | 4-cylinder, liquid-cooled vertical I-head |
all fuel | |
Displacement | 382 ci
6.3 L |
Bore/Stroke | 4.50x6.00 inches
114 x 152 mm |
Air cleaner | oil bath |
Compression | 4.5:1 |
Rated RPM | 1350 |
Starter | electric |
Starter volts | 6 |
Oil capacity | 10 qts
9.5 L |
Engine Detail — 382 ci / 6.3 L LP Gas
Manufacturer | Continental J382 |
Fuel Type | LP gas |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 382 ci
6.3 L |
Rated RPM | 1350 |
Transmission
Transmission — 4 forward and 1 reverse gear
Type | gear |
Gears | 4 forward and 1 reverse |
Clutch | dry disc |
![]() | |
Dimensions
Massey-Harris 55 Tires | |
|---|---|
Ag front | 7.50x18 |
Standard Ag rear | 14-34 |
Western Ag rear | 18-26 |
Ag rear | 15-34 |
Dimensions | |
|---|---|
Standard Wheelbase | 88.5 inches
224 cm |
Western Wheelbase | 90.1 inches
228 cm |
Length | 145.5 inches
369 cm |
Height | 83.3 inches
211 cm |
Standard Rear tread | 57.4 inches
145 cm |
Western Rear tread | 70 inches
177 cm |
Massey-Harris 55 Weight | |
|---|---|
Gas Operating | 7223 lbs
3276 kg |
Diesel Operating | 7571 lbs
3434 kg |
Ballasted | 10155 lbs
4606 kg |
Tests
Tractor Tests | |
|---|---|
NTTL 394: gasoline 4-speed 2WD | |
NTTL 428: tractor fuel 4-speed 2WD | |
NTTL 452: diesel 4-speed 2WD | |
NTTL 455: gasoline 4-speed 2WD |
Nebraska Tractor Test 394 | |
|---|---|
Gasoline 4-speed 2WD
May 18 - 27, 1948
Link: Nebraska Tractor Test 394 file | |
Belt power (max) | 58.98 hp
44.0 kW |
Belt fuel use (max) | 5.2 gal/hour
19.7 l/hour |
Drawbar performance | |
Max power | 52.47 hp
39.1 kW |
Gear 3 used for power test. | |
Max pull | 5,674 lbs
2573 kg |
Gear 1 used for pull test. | |
Nebraska Tractor Test 428 | |
|---|---|
Tractor fuel 4-speed 2WD
October 3 - 14, 1949
Link: Nebraska Tractor Test 428 file | |
Belt power (max) | 52.17 hp
38.9 kW |
Belt fuel use (max) | 5.3 gal/hour
20.1 l/hour |
Drawbar performance | |
Max power | 47.64 hp
35.5 kW |
Gear 3 used for power test. | |
Max pull | 5,546 lbs
2515 kg |
Gear 1 used for pull test. | |
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 power | 51.07 hp
38.1 kW |
Gear 3 used for power test. | |
Max pull | 5,865 lbs
2660 kg |
Gear 1 used for pull test. | |
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 power | 57.55 hp
42.9 kW |
Gear 3 used for power test. | |
Max pull | 6,377 lbs
2892 kg |
Gear 1 used for pull test. | |
Photos
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