Wikitractor

Massey-Harris 55

Production ended · 2WD

PTO power · claimed

56 hp

Weight
7,223 lb
Engines
4 Gasoline · Diesel · all fuel · LP gas
Built
no record
Price new · 1955
$3,850

Power

Engineno record
PTO56 hp claimed
Drawbar41 hp claimed
Drawbar, tested57.5 hp
Belt pulley66.9 hp tested
Listed power62 hp PTO basis
Plows rated5

Engines

Continental 6.3L 4-cyl gasolineGasoline · 4 cyl382 ci
Continental 6.3L 4-cyl dieselDiesel · 4 cyl382 ci
Continental 6.3L 4-cyl all fuelall fuel · 4 cyl382 ci
Continental 6.3L 4-cyl LP gasLP gas · 4 cyl382 ci
Engine details
Continental 6.3L 4-cyl gasoline
Bore × stroke
4.5 in × 6 in
Rated speed
1,350 rpm
Compression
5.65:1
Cooling
liquid-cooled
Continental 6.3L 4-cyl diesel
Bore × stroke
4.5 in × 6 in
Rated speed
1,350 rpm
Compression
15:1
Cooling
liquid-cooled vertical I-head
Continental 6.3L 4-cyl all fuel
Bore × stroke
4.5 in × 6 in
Rated speed
1,350 rpm
Compression
4.5:1
Cooling
liquid-cooled vertical I-head
Continental 6.3L 4-cyl LP gas
Rated speed
1,350 rpm
Cooling
liquid-cooled

Transmissions

4-speed geargear4F / 1R

Weight

Weight7,223 lb operating; Gas
Ballasted10,155 lb

Dimensions

Wheelbase88.5 in
Length145.5 in
Height83.3 in

Capacities

Fuel tank27.5 gal
Hydraulic system3.5 gal

Hydraulics

Pump flowno record
Total flow10 gpm

Hitch

Rear lift capacityno record

PTO

Rear PTO speeds540 (1.375)
Engine rpm at PTO speed521@1350

Chassis

Drive2WD
SteeringManual steering
BrakesDifferential mechanical expanding shoe brakes
CabOpen operator station

Tires

Front7.50x18
Rear14-34

Production

Price new$3,850 (1955)
Built byMassey-Harris

Variants

  • 55K all-fuel engine
  • 55D diesel engine
  • Western wide-tread

Serial numbers

On side of tractor frame.

YearFirst serial
19461001 (gasoline)
19471116 (gasoline)
19482132 (gasoline)
19493581 (gasoline)
19505468 (gasoline)
19516399 (gasoline)
195210001 (gasoline)
195313017 (gasoline)
195415299 (gasoline)
195517059 (gasoline)
19461001 (all-fuel)
19471013 (all-fuel)
19481554 (all-fuel)
19493033 (all-fuel)
19504078 (all-fuel)
19514808 (all-fuel)
19525503/10001 (all-fuel)
195313017 (all-fuel)
195415299 (all-fuel)
195517059 (all-fuel)
19491001 (diesel)
19501022 (diesel)
19512058 (diesel)
19522822/10001 (diesel)
195313017 (diesel)
195415299 (diesel)
195517059 (diesel)

Literature

  • Tractors Massey-Harris, 1946
  • Power-Plus Tractors Massey-Harris, 1951
  • Power For Your Farm Massey-Harris, 1953
  • Massey-Harris Tractors 1954
  • Massey-Harris Tractors 1955