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International Harvester S-Series (1955 to 1957)

The International Harvester S-Series was a family of light and medium trucks that debuted for the 1956 model year. The S-Series succeeded th...

The International Harvester S-Series was a family of light and medium trucks that debuted for the 1956 model year. The S-Series succeeded the International Harvester R-Series, and was offered in a range of payload capacities. These trucks were powered by a variety of inline six engines, with the size and power depending on the Gross Vehicle Weight. The International Harvester S-Series was in production until 1957, when it was replaced by the International Harvester A-Series. The S-Series name would be used again to designate a range of medium and heavy duty trucks known as the International Harvester S-Series Medium & Heavy Duty.

International Harvester S-Series FAQs

Model years for International Harvester S-Series (1955 to 1957)

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Showing 17 of 17 related listings

Buffalo County, Nebraska, USA

1956 International Harvester S-120

Project

164k mi TMU

Manual

LHD

For Sale

$4,000

Private Seller

Jul 3, 2025

1956 International Harvester S-120

For Sale

$4,000

164,030 mi TMU
Location: Buffalo County, Nebraska, USA
Originality:
Project

Vehicles that are partially operable or non-operable that are suitable for restoration or customization.
Transmission: Manual
Driver side: LHD

Vehicle Details

Bowling Green, Kentucky, USA

1955 International Harvester Pickup

Original & Highly Original

79k mi TMU

Manual

LHD

Not Sold

$8,100

Hemmings

Aug 3, 2025

Details

SAVE

Lot 28012-PC: 1955 International Harvester Pickup

Not Sold

$8,100

79,000 mi TMU
Location: Bowling Green, Kentucky, USA
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: LHD

Vehicle Details

WEBSITE

1956 International Harvester R-192 Dually

Henrietta, Texas, USA

1956 International Harvester R-192 Dually

Custom

135 mi TMU

Automatic

LHD

Not Sold

$8,500

Bring a Trailer

Jun 18, 2025

Details

SAVE

Lot 196746: 1956 International Harvester R-192 Dually

Not Sold

$8,500

135 mi TMU
Location: Henrietta, Texas, USA
Originality:
Custom

Highly modified and/or restored vehicles with uprated engine swaps, and/or body conversions. Generally, Restomod and Custom vehicles cannot be easily returned to their original factory specifications.
Transmission: Automatic
Driver side: LHD

Vehicle Details

WEBSITE

1956 International Harvester S-120 Pickup

Amarillo, Texas, USA

1956 International Harvester S-120 Pickup

Modified

134k mi TMU

Manual

LHD

Not Sold

$10,500

Bring a Trailer

Apr 18, 2025

Details

SAVE

Lot 188114: 1956 International Harvester S-120 Pickup

Not Sold

$10,500

134,000 mi TMU
Location: Amarillo, Texas, USA
Originality:
Modified

Vehicles with a period-correct engine and body, with multiple significant modifications such as change in color, increased displacement, added performance equipment (Turbo, Supercharger), spoilers or bumpers, etc. Generally, removable modifications.
Transmission: Manual
Driver side: LHD

Vehicle Details

WEBSITE

Littleton, Colorado, USA

1957 International Harvester S-110

Original & Highly Original

44k mi TMU

Manual

LHD

Not Sold

$8,250

AutoHunter

Feb 26, 2025

Details

SAVE

Lot 66119680: 1957 International Harvester S-110

Not Sold

$8,250

44,658 mi TMU
Location: Littleton, Colorado, USA
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: LHD

Vehicle Details

WEBSITE

Solon, Ohio, USA

1956 International S120

132k mi

LHD

Price Undisclosed

RH Motorcars

Sep 20, 2024

Details

SAVE

Indianapolis, Indiana, USA

1956 International S112 Custom Pickup

Original & Highly Original

1k mi

Manual

LHD

Not Sold

$30,000

Mecum

May 11, 2024

Details

SAVE

Lot K51: 1956 International S112 Custom Pickup

Not Sold

$30,000

1,026 mi
Location: Indianapolis, Indiana, USA
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: LHD

Vehicle Details

WEBSITE

Denver, CO, USA

1956 International S120

Original & Highly Original

156k mi

Manual

LHD

Last Asking

$16,900

Worldwide Vintage Autos

Jan 28, 2024

Details

SAVE

Lot CTP43661: 1956 International S120

Last Asking

$16,900

156,232 mi
Location: Denver, CO, USA
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: LHD

Vehicle Details

DEALER'S WEBSITE

1956 International Harvester S-160 4×4 Fire Truck

Rutland, MA, USA

1956 International Harvester S-160 4×4 Fire Truck

Original & Highly Original

16k mi TMU

Manual

LHD

Sold

$8,500

Bring a Trailer

Aug 13, 2023

Details

SAVE

Lot 116791: 1956 International Harvester S-160 4×4 Fire Truck

Sold

$8,500

16,000 mi TMU
Location: Rutland, MA, USA
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: LHD

Vehicle Details

WEBSITE

Las Vegas, NV, USA

1957 International S-120 Custom Pickup

Modified

TMU

Automatic

LHD

Sold

$33,000

Barrett-Jackson

Jun 30, 2022

Details

SAVE

Lot 127.1: 1957 International S-120 Custom Pickup

Sold

$33,000

TMU
Location: Las Vegas, NV, USA
Originality:
Modified

Vehicles with a period-correct engine and body, with multiple significant modifications such as change in color, increased displacement, added performance equipment (Turbo, Supercharger), spoilers or bumpers, etc. Generally, removable modifications.
Transmission: Automatic
Driver side: LHD

Vehicle Details

WEBSITE

1956 International Harvester Dually Flatbed

Indianapolis, IN, USA

1956 International Harvester Dually Flatbed

Original & Highly Original

TMU

Manual

LHD

Sold

$2,200

Mecum

May 17, 2022

Details

SAVE

Lot G3: 1956 International Harvester Dually Flatbed

Sold

$2,200

TMU
Location: Indianapolis, IN, USA
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: LHD