International S-Series

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International S-1700/S-1800

1987-model Blue Bird-bodied International S-1800, marketed as the Blue Bird Conventional
Years of manufacture 1979 to 1989
Length 16'2" to 34'11"
Width 96 inches
Power/Fuel Gasoline, Diesel

1988-model Thomas-bodied International S-1800, marketed as the Saf-T-Liner Conventional

1982-model Wayne-bodied International S-1800, marketed as the Lifeguard

The International Harvester/Navistar S-Series is a bus chassis manufactured by International Harvester (later Navistar International) as a range of trucks and stripped chassis. Produced from 1979 until 1989, the S-Series replaced the existing Loadstar. In 1989, the S-Series was replaced by the 2nd-generation of S-Series chassis, the 3800. This later lead to the creation of the International 3300, the basis for the IC Bus CE Series.

Variants

S-1700

Produced as a lighter-duty derivative of the S-1800.

S-1800

Standard-model chassis with a higher suspension weight capabilities.

1853FC

Forward-control chassis for use on Type D school buses, produced from 1981-1989.

Specifications

The S-1700 / S-1800 was available with either a gasoline or diesel powertrain. This was reflected in the model identifier, as models ending in '23' (S1723, S1823) indicated Gasoline engines, while models ending in '53' (S1753, S1853) denote diesel engines.

International S-Series powertrain details (1979-1989)
Engine name Production Fuel Configuration Transmission
International Harvester 345 1979-1986 Gasoline 345 cu in (5.7 L) V8 4-speed manual (S-1723 only)

5-speed manual*

4-speed automatic (optional all)

International Harvester 392 392 cu in (6.4 L) V8
International Harvester MV-404 1979-1982 404 cu in (6.6 L) V8
International Harvester MV-446 446 cu in (7.3 L) V8
International Harvester 9.0L V8 1980-1989 Diesel 551 cu in (9.0 L) V8
Navistar DT466E 1979-1989 466 cu in (7.6 L) I6 turbodiesel
International Harvester IDI 1983-1987 420 cu in (6.9 L) V8
1986-1989 444 cu in (7.3 L) V8
Caterpillar 3208 1979-1981 636 cu in (10.4 L) V8 turbodiesel

*(optional on S-1723, standard on S-1753, S-1823/1853)

Applications

Manufacturer Model Production Notes
Blue Bird Conventional 1979 - 1989 Replaced by International 3800
Carpenter Body
Company
Classic 1979 - 1989
Cavalier 1983 - 1988 Type D; 1853FC chassis
Superior Pioneer 1979 - 1981
Thomas Built
Buses
Conventional 1979 - 1989 Replaced by International 3800
Ward Body Works Volunteer 1979 - 1989
President 1981 - 1986 Type D; 1853FC chassis
Wayne
Corporation
Lifeguard 1979 - 1989 Replaced by International 3800

Photo Gallery

Operators

Canada

United States