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Years in Production / 1956–1958

Farmall

450

Explore the specifications, hardware, and original references for the Farmall 450.

Farmall 450 tractor PA1 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗

63hp

Engine estimate · from belt

2WD Only

Drive

1956–1958

Production years

Farmall

Manufacturer

450 / 01

At a glance

Production

Row-Crop tractor

Built in Rock Island, Illinois, USA

Manufacturer
Farmall (a part of International Harvester)
Total Built
18,305

Mechanical

Two-wheel drive

Mechanical disc brakes

Open operator station.

Steering
power assist

Hydraulics

Type
Hydra-Touch
Valves
1 to 3

Hitch

Type
IH Fast Hitch

Pto

Rear Pto
transmission
Rear Pto
independent OptOptional
Rear Type
540 (1.375)

Serial Numbers

FAQ: How to read a serial number table.

1956
501
1957
1734
1958
21871

Belt Pulley

Diameter
11 inches27 cm
Width
7 inches17 cm
Rpm
899
Speed
2588 ft/min788.82 meters/min

450 / 02

Under the hood

Engine Detail (Option 1)

International Harvester C281

gasoline

4-cylinder

liquid-cooled inline

Displacement
281 ci4.6 L
Bore Stroke
4.125x5.25 inches105 x 133 mm
Air Cleaner
oil bath
Compression Ratio
6.6:1
Rated Rpm
1450
Starter Volts
6
Oil Capacity
8 qts7.6 L
Coolant Capacity
28 qts26.5 L
Fuel Type
gasoline
Cylinders
4
Cooling
liquid-cooled inline

Engine Detail (Option 2)

International Harvester

diesel

4-cylinder

liquid-cooled inline

Displacement
281 ci4.6 L
Bore Stroke
4.125x5.25 inches105 x 133 mm
Compression Ratio
17.45:1
Rated Rpm
1450
Starter Volts
12
Oil Capacity
9 qts8.5 L
Fuel Type
diesel
Cylinders
4
Cooling
liquid-cooled inline

Engine Detail (Option 3)

International Harvester

LP gas

4-cylinder

liquid-cooled vertical I-head

Displacement
281 ci4.6 L
Bore Stroke
4.125x5.25 inches105 x 133 mm
Compression Ratio
8.35:1
Rated Rpm
1450
Starter Volts
6
Fuel Type
LP gas
Cylinders
4
Cooling
liquid-cooled vertical I-head

Engine Options

International Harvester 4.6L 4-cyl gasoline

International Harvester 4.6L 4-cyl diesel

International Harvester 4.6L 4-cyl LP gas

Fuel Tank
21 gal79.5 L

450 / 03

Gears & controls

Transmission

Transmission
International Harvester Torque Amplifier
Transmission Type
partial power shift
Gears
10 forward and 2 reverse
Clutch
dry disc

450 / 04

Size. Stance. Footprint.

Dimensions

Length
143 in363 cm
Width
84 in213 cm
Height
80 in203 cm
Wheelbase
95.75 in243 cm

Dimensions And Tires

Wheelbase
95.75 inches243 cm
Weight
6,519 lbs2957 kg
Front Tire
6.00-16
Rear Tire
13.6-38

Tires And Tracks

Front Ag
6.00-16
Rear Ag
13.6-38

450 / 05

Tractor Photos

Farmall 450 tractor PA1 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗

See it in action

Videos

Watch Farmall 450 videos from their original YouTube creators.

This 450 International Will Make You Look Twice - 1957 Demonstrator Classic Tractor Fever

Video by Classic Tractor Fever

Watch on YouTube ↗

450 / 07

Tests (NTTL)

Nebraska Tractor Test 612

Gasoline Torque Amplifier 2WDApril 9 - 14, 1957

Drawbar performance

Gear 3-Direct used for power test.

Gear 1-TA used for pull test.

Id
612
Belt Power Max
55.28 hp41.2 kW
Belt Fuel Use Max
4.8 gal/hour18.2 l/hour
Max Power
51.25 hp38.2 kW
Max Pull
7,318 lbs3319 kg

Nebraska Tractor Test 608

Diesel Torque Amplifier 2WDMarch 18 - April 1, 1957

Drawbar performance

Gear 3-Direct used for power test.

Gear 1-TA used for pull test.

Id
608
Belt Power Max
48.78 hp36.4 kW
Belt Fuel Use Max
3.6 gal/hour13.6 l/hour
Max Power
45.47 hp33.9 kW
Max Pull
6,634 lbs3009 kg

Nebraska Tractor Test 620

LP gas Torque Amplifier 2WDMay 7 - 29, 1957

Drawbar performance

Gear 3-Direct used for power test.

Gear 1-TA used for pull test.

Id
620
Belt Power Max
54.12 hp40.4 kW
Belt Fuel Use Max
5.8 gal/hour22.0 l/hour
Max Power
49.94 hp37.2 kW
Max Pull
7,333 lbs3326 kg

Farmall 450 · photo 1 / 1

Farmall 450 tractor PA1

Farmall 450 tractor PA1 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗