Massey-Harris 555 Specs ( 1955-1958 )
Overview
The Massey-Harris 555 is a standard-tread farm tractor produced between 1955 and 1958, featuring an open operator station and a two-wheel-drive system. It is equipped with a 382 ci Continental 4-cylinder liquid-cooled engine available in both gasoline and diesel configurations, delivering tested belt power up to 66.91 hp. The mechanical layout includes a 4-speed gear transmission, a 540 RPM rear PTO, and a total weight of 7,500 lbs.
Ideal Applications
Tested Power Performance:
According to Nebraska Tractor Tests 452 and 455, this model achieved a maximum drawbar pull of 6,377 lbs in gasoline configuration and 5,865 lbs in diesel.
Engine and Fuel Specifications:
The 6.3L Continental engine operates at a rated speed of 1350 RPM and is supported by a fuel tank with a capacity of 27.5 gallons.
Transmission and Drivetrain Layout:
The mechanical system utilizes a 4-speed gear transmission with one reverse gear, a dry disc clutch, and an 88.5-inch wheelbase.
Production
| Description | Standard-tread tractor / Original price was $4,200 in 1958 |
|---|---|
| Manufacturer | Massey-Harris |
Engine
| Bore/Stroke | 4.50x6.00 inches (114 x 152 mm) / 4.50x6.00 inches (114 x 152 mm) |
|---|---|
| Description | Continental J382 / gasoline / 4-cylinder / liquid-cooled / Continental J382D / diesel / 4-cylinder / liquid-cooled |
| Displacement | 382 ci (6.3 L) / 382 ci (6.3 L) |
| Rated RPM | 1350 / 1350 |
| Engine type | Continental 6.3L 4-cyl gasoline / Continental 6.3L 4-cyl diesel |
| Engine type | Continental 6.3L 4-cyl gasoline / Continental 6.3L 4-cyl diesel |
| Fuel tank | 27.5 gal (104.1 L) |
| Belt (tested) | 66.91 hp (49.9 kW) |
| Drawbar (tested) | 57.55 hp (42.9 kW) |
| PTO (claimed) | 71 hp (52.9 kW) |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 4 forward and 1 reverse |
| Transmission type | 4-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive type | Two-wheel drive |
PTO
| Engine RPM | 521@1350 |
|---|---|
| Rear PTO Type | 540 |
Dimensions & Tires
| Rear tread | 57.3 inches (145 cm) |
|---|---|
| Weight | 7500 lbs (3402 kg) |
| Wheelbase | 88.5 inches (224 cm) |
| Front tire | 7.50-18 |
| Rear tire | 14-34 |
| Weight | 7500 lbs (3402 kg) |
| Wheelbase | 88.5 inches (224 cm) |
| Ag front | 7.50-18 |
| Ag rear | 14-34 |
555 Serial Number Location
| Description | Right side of tractor frame. |
|---|
Nebraska Tractor Test 452
| Belt fuel use (max) | 3.9 gal/hour (14.8 l/hour) |
|---|---|
| Belt power (max) | 59.04 hp (44.0 kW) |
| Description | Diesel 4-speed 2WDOctober 17 - 26, 1950Link: Nebraska Tractor Test 452 file / Drawbar performance / Gear 3 used for power test. / Gear 1 used for pull test. |
| Max power | 51.07 hp (38.1 kW) |
| Max pull | 5,865 lbs (2660 kg) |
Nebraska Tractor Test 455
| Belt fuel use (max) | 5.9 gal/hour (22.3 l/hour) |
|---|---|
| Belt power (max) | 66.91 hp (49.9 kW) |
| Description | Gasoline 4-speed 2WDApril 16 - May 7, 1951Link: Nebraska Tractor Test 455 file / Drawbar performance / Gear 3 used for power test. / Gear 1 used for pull test. |
| Max power | 57.55 hp (42.9 kW) |
| Max pull | 6,377 lbs (2892 kg) |
References
| Description | Dyanmic New Tractors published in 1956, by Massey-Harris |
|---|
Tractor Tests
| Description | NTTL 452: diesel 4-speed 2WD / NTTL 455: gasoline 4-speed 2WD |
|---|