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Years in Production / 1952–1955

Massey-Harris

33

Explore the specifications, hardware, and original references for the Massey-Harris 33.

Massey-Harris 33 tractor PA7 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗

40hp

Engine estimate · from PTO

2WD Only

Drive

1952–1955

Production years

Massey-Harris

Manufacturer

33 / 01

At a glance

Production

Row-Crop tractor

Original price was $2,550 in 1955

Manufacturer
Massey-Harris

Pto

Rear Type
540
Engine Rpm
551@1500

Belt Pulley

Diameter
13.5 inches34 cm
Width
6.4 inches16 cm
Rpm
890
Speed
3146 ft/min958.90 meters/min

Mechanical

Two-wheel drive

Manual steering

Open operator station

33 / 02

Under the hood

Engine Detail (Option 1)

Continental

gasoline

4-cylinder

liquid-cooled

Displacement
201 ci3.3 L
Bore Stroke
3.625x4.875 inches92 x 124 mm
Air Cleaner
oil bath
Compression Ratio
6.3:1
Rated Rpm
1500
Starter Volts
6
Oil Capacity
8 qts7.6 L
Coolant Capacity
18 qts17.0 L
Fuel Type
gasoline
Cylinders
4
Cooling
liquid-cooled

Engine Detail (Option 2)

Continental

diesel

4-cylinder

liquid-cooled

Displacement
201 ci3.3 L
Bore Stroke
3.625x4.875 inches92 x 124 mm
Air Cleaner
oil bath
Compression Ratio
15:1
Rated Rpm
1500
Oil Capacity
8 qts7.6 L
Coolant Capacity
18 qts17.0 L
Fuel Type
diesel
Cylinders
4
Cooling
liquid-cooled

Engine Options

Continental 3.3L 4-cyl gasoline

Continental 3.3L 4-cyl diesel

Fuel Tank
19 gal71.9 L

33 / 03

Gears & controls

Transmission

Transmission Type
gear
Gears
5 forward and 1 reverse
Clutch
254mm mechanical dry disc

33 / 04

Size. Stance. Footprint.

Dimensions

Wheelbase
100.6 in255 cm
Front tread
8.5 in
Rear tread
52.75 in133 cm

Dimensions And Tires

Wheelbase
100.6 inches255 cm
Weight
5191 lbs2354 kg
Front Tire
5.50-16
Rear Tire
11-38

Tires And Tracks

Front Ag
5.50-16
Front Ag
9.00x10
Rear Ag
11-38
Rear Ag
12-28
Rear Ag
13-28
Rear Ag
12-38
Rear Ag
13-30

33 / 05

Tractor Photos

Massey-Harris 33 tractor PA7 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗

33 / 06

Tests (NTTL)

Nebraska Tractor Test 509

Gasoline 5-speed 2WDOctober 10 - 24, 1953

Drawbar performance

Gear 3 used for power test.

Gear 1 used for pull test.

Id
509
Belt Power Max
39.52 hp29.5 kW
Belt Fuel Use Max
3.4 gal/hour12.9 l/hour
Max Power
35.54 hp26.5 kW
Max Pull
4,456 lbs2021 kg

Massey-Harris 33 · photo 1 / 1

Massey-Harris 33 tractor PA7

Massey-Harris 33 tractor PA7 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗