International S-Series (bus chassis)

International 3800
International 3800
	2000–2001 International 3800 (Carpenter Classic 2000 body)
	Driver's compartment of a typical 1990s International 3800 school bus
Overview
Manufacturer	Navistar International
Also called	International 3700/3800
Production	1989–2004
Assembly	Springfield, Ohio [5]
Body and chassis
Body style	Cowled chassis; School bus; Commercial bus; Front-engine stripped chassis (3900); Rear-engine stripped chassis (3000);
Platform	International S-Series
Powertrain
Engine	Diesel Navistar DTA360 I6 (1989–1994) Navistar DT408 I6 (1994–1995); Navistar DTA466 I6 (1989–1998); Navistar DT466E I6 (1996–2004); Navistar 7.3L IDI V8 (1989–1994); Navistar T444E V8 (1994–2004); ;
Transmission	5-speed manual; Allison AT545 4-speed automatic; Allison MT643 4-speed automatic
Chronology
Successor	International 3300

International S-Series "Schoolmaster"
International S-Series "Schoolmaster"
	Late 1980s International S-1800 (retired)
	Driver's compartment of a typical 1980s International S-Series school bus (Wayne Lifeguard body pictured)
Overview
Manufacturer	International Harvester ; Navistar International
Also called	International Harvester S-1723/S-1753 "Schoolmaster"
Production	1979–1989
Assembly	Springfield, Ohio
Body and chassis
Body style	Cowled chassis; School bus; Commercial bus; Stripped chassis (1853FC);
Platform	International S-Series
Powertrain
Engine	Gasoline International Harvester 345 cubic-inch V8 (1979–1986); International Harvester 392 cubic-inch V8 (1979–1986); International Harvester MV-404 6.6 liter V8 (1979–1981); International Harvester MV-446 7.3 liter V8 (1979–1981); ; Diesel International Harvester D-150/170/190 9.0 liter V8 (September 1978 – December 1979); International Harvester 9.0L V8 (January 1980–1987); International Harvester IDI 6.9 L (420 cu in) (1983–1987); International Harvester IDI 7.3 L (444 cu in) (1986–1989); International Harvester DT466 7.6 L (466 cu in) (1979–1989); International Harvester DT360 5.9 L (360 cu in) (1986–1989); Caterpillar 3208 10.4 L (636 cu in) (1979–1981); ;
Transmission	4-speed manual; 5-speed manual; Allison AT545 4-speed automatic; Allison MT643 4-speed automatic
Dimensions
Wheelbase	152 in (3,861 mm); 170 in (4,318 mm); 193 in (4,902 mm); 216 in (5,486 mm); 254 in (6,452 mm); 276 in (7,010 mm);

International S-Series "Schoolmaster"
International 3700/3800
International S-Series "Schoolmaster"; International 3700/3800
Overview
Production	1979–2004
Body and chassis
Class	Class 6
Body style(s)	Cowled chassis (conventional)
Related	International S Series/International 4000-Series (1989-2001)
Chronology
Predecessor	International Harvester Loadstar 1703/1803
Successor	International 3300 (DuraStar)

Last updated April 09, 2019

The bus chassis variant of the International S-Series is a cowled bus chassis (conventional style) that was produced by International Harvester (later Navistar International) from 1979 to 2004. Produced primarily for school bus applications, the chassis was also produced for other applications, including commercial-use buses and cutaway-cab buses. In addition, the cowled chassis formed the basis for front-engine and rear-engine stripped chassis produced for bus applications.

The International Harvester Company was a United States manufacturer of agricultural machinery, construction equipment, trucks, automobiles, and household and commercial products. Its reorganized successor, after spin-off of several of those businesses, is Navistar International.

Navistar International Corporation is an American holding company, that owns the manufacturer of International brand commercial trucks, IC Bus school and commercial buses, Workhorse brand chassis for motor homes and step vans, and is a private label designer and manufacturer of diesel engines for the pickup truck, van, and SUV markets. The company is also a provider of truck and diesel engine parts and service.

Designed as a replacement for the International Loadstar bus chassis, the S-Series bus chassis was produced in two distinct generations. Matching the development of the International S-Series, during 1989, the model line underwent a major update, becoming the International 3800. In 2004, the International 3800 ended production, replaced by the International 3300 (a cowled-chassis version of the International 4300/DuraStar). In production for over 25 years, the S-Series bus chassis was the longest-lived model line ever produced by International and the final Navistar product line developed by International Harvester.

The International Harvester Loadstar is a series of medium and heavy-duty trucks that were built by International Harvester from 1962 to 1979. The Loadstar was primarily used for local delivery, construction, and agricultural applications, as well as utility and fire trucks. It replaced the earlier R-series, which had been built in medium duty form until the Loadstar arrived.

The International 3300 is a cowled (conventional-style) bus chassis manufactured by Navistar International since 2005 for the United States, Canada, and Mexico. While primarily used for yellow school buses, versions of the 3300 are bodied for other applications as well.

The International DuraStar, is a product line of medium-duty trucks produced by Navistar International from 2001 to 2018. Introduced as the successor to the International 4000 series of 1989–2001, the 4000 series was renamed the DuraStar in 2008. Developed as a Class 6-7 product range, the 4000/DuraStar was slotted below the 8000/TranStar regional-haul semitractor, with the Class 5 International TerraStar (2010–2015) serving as the smallest International conventional-cab product range.

First generation (S-Series; 1979–1989)

Released during 1979 production, International Harvester introduced the S-Series bus chassis alongside its conventional-cab counterpart. Replacing the bus chassis variant of the International Harvester Loadstar, the S-Series chassis continued the use of the "Schoolmaster" product name.^[1]^[2] In a shift from being an adaptation of a truck chassis, the S-Series Schoolmaster was designed as a distinct model line intended solely for bus use.^[3] Along with completely straight frame rails, the chassis was designed with a flat-back firewall, allowing for body mounting with minimal design adaptations.^[1]^[3]

During its production, the S-Series Schoolmaster changed relatively little. Along with revisions to the powertrain, many changes reflected the manufacturer transition from International Harvester to Navistar International. For 1987, the grille underwent a revision, with the "International" wording moved from the top of the grille to the bottom left, paired with a Navistar diamond logo (replacing the IH logo on the steering wheel). In another change, Navistar ended the use of gasoline-fuel engines (in all of its vehicles).

Model overview

The S-Series Schoolmaster was produced as a variant of the International S1700 and S1800 (Class 6 trucks), with the lighter-duty S1700 and heavier-duty S1800. Along with powertrain configurations, the two model ranges were distinguished largely by suspension weight capacities.^[1]^[4] Following International traditional model nomenclature, the specific model numbers for the S-Series Schoolmasters ended in 3; gasoline-engine examples were given "23" model numbers while diesel-engine examples were given a "53" model number.

International S-Series "Schoolmaster" Model Designations
Model Names	S1700		S1800		1853-FC
Model Names	S1723	S1753	S1823	S1853	1853-FC
Fuel Type	Gasoline	Diesel	Gasoline	Diesel	Diesel
Years Produced	1979–1986	c.1983–1989	1979–1981	1979–1989	1981–1989

Powertrain

At its launch, the S-Series Schoolmaster was offered with four gasoline engines and three diesel engines (dependent on the model range specified). The S1723 was powered solely with gasoline engines, with the International 345 V8 as standard, with three optional gasoline V8s (the 392, and the MV404 and MV446). The S1823 was offered solely with the MV-series V8s (which ended production after 1981). The S1853 was powered by diesel engines, with a standard 9.0L V8, along with a DT466 and Caterpillar 3208 as options (the latter, discontinued around 1982, for the Schoolmaster).

For 1983, an S1753 was introduced to introduce diesel engines to the S1700 chassis; in place of the 9.0L V8 and DT466 inline-6, International debuted a 6.9L IDI-series V8. In 1987, the displacement of the IDI V8 was enlarged to 7.3L. A 4-speed manual was standard on the S1700 variants, while S1800 variants were equipped with a 5-speed manual; a 4-speed automatic was optional on all engines. Following the discontinuation of the MV-series engines, the S-1823 was phased out after 1981, while the S-1723 was phased out after 1986, after International withdrew production of gasoline engines entirely.

The International Harvester IDI engine is a 4-stroke 8-cylinder Diesel engine used in International Harvester trucks, Ford F-Series pickups, and Ford E-Series vans from 1983 to 1994. The engine had two displacements: 420 cubic inches (6.9 L), which was used in Ford trucks from 1983 until 1987, and 444 cubic inches (7.3 L), which was used in Ford trucks from 1988 until 1994 and in 1993 and 1994 (turbocharged). These engines were replaced in 1994.5 by the Navistar T444E engine, which was also marketed under the Ford Power Stroke name.


International S-Series "Schoolmaster" powertrain details^[4]
Engine	Production	Configuration	Fuel	Fuel System	Output	Transmission
International Harvester V345	1979-1986	345 cu in (5.7 l) OHV V8	Gasoline	Carburetor	147 hp	4-speed manual (S-1723 only) 5-speed manual (optional on S-1723, standard on S-1753, S-1823/1853 4-speed automatic (optional all)
International Harvester V392	1979-1986	392 cu in (6.4 l) OHV V8			185 hp
International Harvester MV-404	1979-1982	404 cu in (6.6 l) OHV V8			189 hp (2-bbl) 206 hp (4-bbl)
International Harvester MV-446	1979-1982	446 cu in (7.3 l) OHV V8			227 hp
International Harvester 9.0L V8	1980-1989	551 cu in (9.0 l) OHV V8	Diesel	Direct injection	165 hp 180 hp
International Harvester DT466	1979-1989	466 cu in (7.6 l) OHV inline-6 turbocharged/naturally aspirated		Direct injection	180 hp 210 hp
International Harvester IDI	1983-1987 (6.9L) 1987-1989 (7.3L)	420 cu in (6.9 l) OHV V8		Indirect injection	155 hp 170 hp
International Harvester IDI	1983-1987 (6.9L) 1987-1989 (7.3L)	444 cu in (7.3 l) OHV V8		Indirect injection	170 hp 185 hp
Caterpillar 3208	1979-c.1981	636 cu in (10.4 l) OHV V8 turbocharged/naturally aspirated		Direct injection	160 hp 175 hp 200 hp 210 hp

Second generation (3800; mid-1989–2004)

In 1989, Navistar redesigned the S-Series medium-duty conventionals for the first time since 1979; the medium-duty trucks were renamed the 4000-Series. As part of the redesign, the school bus chassis was given a more aerodynamic hood that better integrated the front bumper. On the inside, a two spoke-steering wheel was introduced along with a new instrument cluster. For the first time, the school bus chassis received a separate model designation; the S-1703 was replaced by the 3700; and the S-1803 was replaced by the 3800.

Model history

As with its predecessor, the 3800 would change very little over its 15 years of production. In 1991, the 3600 semi-forward control variant was introduced; this was a chassis designed for the Thomas Vista. After 1994, the lower-GVWR 3700 was discontinued. For 1995, along with all other International medium-duty trucks, the 3800 received chrome hood badges denoting the model series and its engine type; the grille badging changed from red to chrome.

The Thomas Vista is a model line of buses that was manufactured by Thomas Built Buses from 1989 to 1998. Produced nearly exclusively as a school bus, the model line was also sold in commercial-use configurations. To improve forward sightlines for drivers, the chassis of design of the Vista combines elements of conventional buses and transit-style school buses.

A key event that would affect school bus manufacturing during the later 1990s was the completion of the acquisition of AmTran by Navistar in April 1995. By the end of the decade, AmTran buses would begin to start wearing International badging on the body as well. To promote the change, in 2002, International redesigned the hood for its conventional bus, dubbed the International IC. These wore vertical grille slats instead of horizontal ones seen since 1989 (although the horizontal grille slats continued to be produced for the 3800 until 2004). As it was a change intended to promote IC Corporation, chassis destined for Blue Bird or Canadian manufacturer Corbeil were still received with the standard hood and grille design.

International S-Series "Schoolmaster" Model Designations
Model Names	Conventional				Stripped Chassis
Model Names	3400	3600	3700	3800	3900FC	3000
Fuel Type	Diesel
Years produced		1991–1998	1989–1994	1989–2004	1990–2010	1996–present

Variants

3400

The 3400 was a chassis designed in the same fashion as a Type A cutaway school bus. To achieve a higher GVWR and allow for higher durability, instead of a van, the medium-duty International 4700 was used as a base. While primarily used by builders of transit buses and specialty vehicles, several body manufacturers (Mid Bus and U.S. Bus) would adopt the 3400 for school bus use.

In the school bus industry, Mid Bus and U.S. Bus both developed products based on the 3400, but the chassis became more popular in the transit and specialty vehicle industries instead.

All versions of the 3400 were powered by the 7.3L IDI and T444E V8 engines and used hydraulic brakes. As the 4700 was discontinued after 2001, the 3400 was replaced by the 3200 based upon the new-generation 4000-Series trucks (later the DuraStar); currently, the 3200 is used only for transit bus, commercial bus, and specialty vehicle applications.

3600

The 3600 was a chassis custom-designed for the Vista from Thomas Built Buses. The Vista combined design elements of a conventional and a forward control school bus. In comparison to a conventional, the driver sat further forward, closer to the front axle. Although much of the engine was located next to the driver like a transit-style bus, access from the front was also maintained via a traditional much-shortened hood. The 3600 chassis was designed in much the same fashion as International's step van chassis, borrowing many components from the 3800.

As it was originally designed specifically for the Vista's body, no other body manufacturers developed their own product lines based on the 3600. It was produced from 1991 until 1998 when Thomas chose to discontinue Vista production after the body manufacturer's purchase by Freightliner.

3700

From 1989 to 1994, International offered two versions of its conventional school bus chassis (as it had with the S-Series). The 3700 was the lighter-GVWR model of the lineup; only minor differences in powertrain and weight ratings differentiated it from the 3800. The 3700 only was produced with the 7.3 engine.

After 1994, the 3700 was discontinued.

3900

As a replacement for the outdated 1853FC, International introduced the 3900 in 1990 as its forward-control bus chassis. Although primarily used by Ward/AmTran/IC, it has been used by a wide variety of other manufacturers of similar buses. In 2010, International ended production of the 3900.

Powertrain

The 3800 is notable for being the first American school bus chassis to have an engine lineup consisting only of diesel engines. Unlike its S-Series predecessor, the 3800 used an all-International lineup of diesel engines.

Inline-six diesel

DTA360 (1989–1994)
DT408 (1994–1995)
DTA466 (1989–1998)
DT466 Mechanical Injection
DT466E Electronic Injection (1996–2005)

V8 diesel

IHC 7.3L IDI (1989–1994)
T444E (1994–2004)

Transmission

Spicer 5-Speed Manual
Eaton-Fuller 6-Speed Manual
Spicer 6+1 Manual
Allison AT545 automatic
Allison MT643 automatic
Allison A2000 automatic

Stripped Chassis (1981–present)

Forward control (1981-2010)

Along with the traditional conventional-style cowled chassis, International produced several stripped-chassis variants for transit-style school buses. Using many chassis and powertrain components from the S-Series, the front-engine 1853FC (FC=Forward Control) was produced from 1981 to 1989. Unlike the conventional, it was powered exclusively by diesel engines. In 1990, the 1853FC was replaced by the more advanced 3900. As with its predecessor, it again shared powertrain and chassis components with its conventional counterpart. In fixing a key drawback of the 1853FC, the 3900 would significantly reduce the interior space needed for the engine, freeing up space for the driver's compartment and front stairwell. The 3900 was produced until 2010.

Rear-engine (1996-present)

In 1996, International introduced its first rear-engine stripped chassis since the early 1970s as the International 3000 became the chassis for the all-new AmTran RE. As with the 3900, the 3000 shared chassis and powertrain components with the 3800. Unlike its front-engine counterpart, the 3000 was designed for the use of both V8 and inline-6 diesel engines. Almost used exclusively used for AmTran and IC school buses, the 3000 remains in production as of 2014.

Body manufacturers

For its production run, the S-Series was used by many manufacturers of Type C school buses in North America. The same was common practice for the 3800 for the early part of its production run. Following the completion of the 1995 acquisition of AmTran, school bus production began to change as chassis suppliers began to align themselves with body manufacturers. The market share of International actually grew as several body manufacturers such as Wayne and Carpenter would close down and Ford and General Motors were gradually shut out of full-size bus production. By 2004, there were only three body manufacturers of full-size buses (Blue Bird, IC Corporation, and Thomas) and three chassis manufacturers (Blue Bird, Freightliner, and International). Navistar, the parent company of IC Corporation, was the lone chassis manufacturer that sold bus chassis to other body manufacturers.

International S-Series bus chassis usage by school bus manufacturers, 1979-2004
Body manufacturer	Chassis variants					Notes
	Conventional		Front-engine		Rear-engine
	S1700 S1800 (1979-1989)	3700 3800 (1989-2004)	1853FC (1981-c.1989)	3900FC (1989-2010)	3000 (1996-present)
American Transportation Corporation (AmTran)		AmTran Volunteer (1993-1996) AmTran CS (1997-2002)		AmTran Genesis (1992-1997) AmTran FE (1998-early 2002)	AmTran RE (1996-early 2002)
Blue Bird Corporation	Blue Bird Conventional (1979-1989)	Blue Bird Conventional (1989-2004)				Replaced by Blue Bird SBCV (based on International 3300) and Blue Bird Vision.
Carpenter Body Works	Carpenter Classic (1979-1989)	Carpenter (Crown) Classic (1989-1999) Carpenter Classic 2000 (late 1999-2001)	Carpenter Cavalier (1983-1988)	Carpenter Counselor (1991-1993)		From 1996 to 1999, Carpenter used the Crown by Carpenter brand name on their buses.
Gillig Corporation	Gillig Coach (1979-1981)					The last Gillig Type C bus (Gillig Coach School Bus) was built in 1981; very few were produced.
Integrated Coach Corporation (IC)		International IC (2001) International CE-Series (late 2001-2004)		International FE-Series (2002-2010)	International RE-Series (2002-present)	The version of the 3800 used by IC wore a modified hood.
Les Enterprises Michel Corbeil		EMC 1st Premier (c. 1991-1995) Corbeil Conventional (c.1996-c.2004)		EMC-3900 (c. 1995-2000)	EMC-3900 RE (c.2000-2001)	Corbeil Type C buses were not sold in the United States.
Mid Bus						The Mid Bus SC is a school bus built on the International 3400 cutaway-cab chassis (with a truck cab and driver-side door); the SC was built during the mid-1990s.
New Bus Company	1988-1989
Superior Coach Company	Superior Pioneer (1979-1985)					Superior ended production of Type C buses in 1985 to concentrate on Type A buses (see Mid Bus)
Thomas Built Buses, Inc.	Saf-T-Liner Conventional (1979-1989)	Saf-T-Liner Conventional (1989-2001)
Ward Body Works	Ward Volunteer (1979-1989)	Ward Volunteer (1989-1992)	Ward President (1981-1986)	Ward Senator (1991-1992)		Non-school bus versions of the Volunteer built after 1980 were sold under the AmTran name.
Wayne Corporation	Wayne Lifeguard (1979-1989)	Wayne Lifeguard (1989-1992)		Wayne Lifestar (1991-1992)
Wayne Wheeled Vehicles		Wayne Lifeguard (1992-1995)

Related Research Articles

IC Bus is an American bus manufacturer that produces yellow school buses and commercial-use buses primarily for the United States and Canada, with limited exports outside North America. Headquartered in Lisle, Illinois, IC is a wholly owned subsidiary of Navistar International. The company was established by Navistar in 2002 through a reorganization of its subsidiary bus manufacturer American Transportation Corporation (AmTran). Through AmTran, IC traces its roots back to the 1933 founding of Ward Body Works in Conway, Arkansas.

American Transportation Corporation was an American manufacturer of school bus bodies. Founded in 1980, the company traces its roots back to Ward Body Works, established in 1933. Following the 1979 bankruptcy filing of Ward Body Works, AmTran was formed; in 1991, the company was acquired by Navistar International, a move that would begin a series of alignment between school bus body manufacturers and chassis suppliers. The AmTran corporate headquarters and manufacturing facilities were located in Conway, Arkansas.

The Chevrolet and GMC B series is a series of cowled chassis that were produced by General Motors, primarily fitted with school bus bodies throughout its production. Based on the medium-duty trucks produced by the Chevrolet and GMC divisions of General Motors, the B series was produced in three separate generations; GMC initially produced its own version separate from Chevrolet. Introduced in 1966, the B series was redesigned in 1984 and 1992 as a 1993 model.

The Chevrolet Kodiak and GMC TopKick are a range of medium duty trucks that were produced by the Chevrolet and GMC divisions of General Motors from 1980 to 2009. Introduced as a variant of the medium-duty C/K truck line, three generations were produced. Slotted between the C/K trucks and the GMC Brigadier Class 8 conventional, the Kodiak/TopKick were developed as a basis for vocationally-oriented trucks, including cargo haulers, dump trucks, and similar vehicles; on later generations, both cutaway and cowled-chassis variants were produced for bus use.

The Navistar T444E is a Diesel V8 engine manufactured by Navistar International Corporation. In its use in Ford Motor Company trucks, vans and school buses, it is the first of the PowerStroke family of diesel engines. The T444E was manufactured from 1994 to 2004, replacing the 7.3 L IDI V8 designed by International Harvester. As a result of federal emission standards, the T444E was discontinued midway through the 2003 model year, replaced by the all-new 6.0 L VT365. In total, nearly 2 million 7.3 L PowerStroke V8s were manufactured for Ford at their Indianapolis, Indiana plant before switching to the 6.0 L.

The medium-duty Ford F-Series is a range of commercial trucks manufactured by Ford since 1948. Derived from the smaller F-Series pickup trucks, the medium-duty range is currently in its eighth generation. Initially slotted between the F-Series pickup trucks and the "Big Job" conventionals, later generations were slotted below the L-Series "Louisville" trucks; during its production, the medium-duty F-Series has been used for an extensive number of applications, competing against the medium-duty Chevrolet/GMC C/K, International S-series, and Freightliner Business Class.

The Blue Bird Vision is a bus that is manufactured and marketed by Blue Bird Corporation in North America and exported worldwide. In production since 2003, the Vision became the first cowled-chassis bus built on a proprietary chassis designed and manufactured by the same company. While it is sold primarily in a school bus configuration, the Blue Bird Vision is also offered with various commercial and specialty seating and design configurations.

The Ford L series is a range of heavy-duty trucks that were assembled and marketed by Ford between 1970 and 1998. The first dedicated Class 8 truck produced by the company, the L-series range replaced the N-series short conventional. Produced as both straight trucks and semitractors, the Ford L series encompassed a wide range of models through the Class 7-8 GVWR ratings in medium-duty, severe-service, and vocational applications. The line would become one of the most popular series of trucks Ford ever produced.

The International S series is a range of trucks that was manufactured by International Harvester from 1977 to 2001. Introduced to consolidate the medium-duty IHC Loadstar and heavy-duty IHC Fleetstar into a single product range, the S series was slotted below the Transtar and Paystar Class 8 conventionals.

The International 3000 Series is a Type D bus chassis manufactured by Navistar International, used for school bus and commercial bus applications. In production since 1990, it has been produced in both front and rear-engine configurations.

The Blue Bird All American is a bus produced by American bus manufacturer Blue Bird Corporation since 1948 in six different generations. While originally developed as a school bus, the All American has been marketed for a number of applications throughout its production, including the Blue Bird Wanderlodge luxury motorhome.

The Ford B-series is a bus chassis that was manufactured by the Ford Motor Company. Produced across six generations from 1948 to 1998, the B-series was a variant of the medium-duty Ford F-Series. As a cowled-chassis design, the B-series was a bare chassis aft of the firewall, intended for bodywork from a second-stage manufacturer. While primarily used for school bus applications in the United States and Canada, the chassis was exported worldwide to manufacturers to construct bus bodies for various uses.

The Wayne Lifestar is a product line of buses that was manufactured and marketed by Wayne Corporation and its successor company Wayne Wheeled Vehicles from 1986 to 1995. Produced nearly exclusively in a school bus configuration, the Wayne Lifestar used a transit-style body configuration with a front-engine chassis. Marking the return to transit-style production, the Lifestar adopted the single-piece body stampings of the Wayne Lifeguard in its construction.

The Freightliner FS-65 is a cowled bus chassis that was manufactured by Freightliner from 1997 to 2007. Derived from the Freightliner FL-Series medium-duty trucks, the FS-65 was produced primarily for school bus applications, though commercial-use buses and cutaway-cab buses were also built using the FS-65 chassis.

The International TerraStar is a product line of medium duty trucks that was manufactured by International Trucks from 2010 to 2015. The smallest conventional-cab truck ever produced by Navistar, the TerraStar is a Class 5 medium-duty truck. Although not officially designated by the company as the replacement for the CityStar LCF cabover, the TerraStar is of similar dimensions and GWVR. Slotted in the Class 5 range, the TerraStar was marketed against both pickup-based vehicles like the Ford F-550 and (Dodge) Ram 5500 as well as conventional-cab trucks like the Freightliner M2, Kenworth T170, and Hino 185.

References

1 2 3 "1981 International Harvester Schoolmaster Chassis 1723 1823 1853 Sales Brochure | eBay". eBay (Product brochure). International Harvester Corporation. Retrieved 2018-05-31.
↑ "International Schoolmaster 1723, 1823, 1853". International Harvester Corporation. 1981. p. 1. Retrieved 31 May 2018.
1 2 "International Schoolmaster 1723, 1823, 1853". International Harvester Corporation. 1981. pp. 2–4. Retrieved 31 May 2018.
1 2 "International Schoolmaster 1723, 1823, 1853". International Harvester Corporation. 1981. p. 8. Retrieved 31 May 2018.
↑ http://web.archive.org/web/19970215111950/http://www.navistar.com:80/bus/bus.html

External links

Media related to International S-Series "Schoolmaster" at Wikimedia Commons
Media related to International 3800 buses at Wikimedia Commons

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[:0-1] 1 2 3 "1981 International Harvester Schoolmaster Chassis 1723 1823 1853 Sales Brochure | eBay". eBay (Product brochure). International Harvester Corporation. Retrieved 2018-05-31.

[2] "International Schoolmaster 1723, 1823, 1853". International Harvester Corporation. 1981. p. 1. Retrieved 31 May 2018.

[:1-3] 1 2 "International Schoolmaster 1723, 1823, 1853". International Harvester Corporation. 1981. pp. 2–4. Retrieved 31 May 2018.

[:2-4] 1 2 "International Schoolmaster 1723, 1823, 1853". International Harvester Corporation. 1981. p. 8. Retrieved 31 May 2018.

[5] ttp://web.archive.org/web/19970215111950/http://www.navistar.com:80/bus/bus.html

International S-Series (bus chassis)

Contents

First generation (S-Series; 1979–1989)

Model overview

Powertrain

Second generation (3800; mid-1989–2004)

Model history

Variants

3400

3600

3700

3900

Powertrain

Stripped Chassis (1981–present)

Forward control (1981-2010)

Rear-engine (1996-present)

Body manufacturers

See also

Related Research Articles

References

External links

International S-Series "Schoolmaster"
Late 1980s International S-1800 (retired)
Driver's compartment of a typical 1980s International S-Series school bus (Wayne Lifeguard body pictured)
Overview
Manufacturer	International Harvester Navistar International
Also called	International Harvester S-1723/S-1753 "Schoolmaster"
Production	1979–1989
Assembly	Springfield, Ohio
Body and chassis
Body style	Cowled chassis School bus Commercial bus Stripped chassis (1853FC)
Platform	International S-Series
Powertrain
Engine	Gasoline International Harvester 345 cubic-inch V8 (1979–1986) International Harvester 392 cubic-inch V8 (1979–1986) International Harvester MV-404 6.6 liter V8 (1979–1981) International Harvester MV-446 7.3 liter V8 (1979–1981) Diesel International Harvester D-150/170/190 9.0 liter V8 (September 1978 – December 1979) International Harvester 9.0L V8 (January 1980–1987) International Harvester IDI 6.9 L (420 cu in) (1983–1987) International Harvester IDI 7.3 L (444 cu in) (1986–1989) International Harvester DT466 7.6 L (466 cu in) (1979–1989) International Harvester DT360 5.9 L (360 cu in) (1986–1989) Caterpillar 3208 10.4 L (636 cu in) (1979–1981)
Transmission	4-speed manual 5-speed manual Allison AT545 4-speed automatic Allison MT643 4-speed automatic
Dimensions
Wheelbase	152 in (3,861 mm) 170 in (4,318 mm) 193 in (4,902 mm) 216 in (5,486 mm) 254 in (6,452 mm) 276 in (7,010 mm)

International 3800
2000–2001 International 3800 (Carpenter Classic 2000 body)
Driver's compartment of a typical 1990s International 3800 school bus
Overview
Manufacturer	Navistar International
Also called	International 3700/3800
Production	1989–2004
Assembly	Springfield, Ohio^[5]
Body and chassis
Body style	Cowled chassis School bus Commercial bus Front-engine stripped chassis (3900) Rear-engine stripped chassis (3000)
Platform	International S-Series
Powertrain
Engine	Diesel Navistar DTA360 I6 (1989–1994) Navistar DT408 I6 (1994–1995) Navistar DTA466 I6 (1989–1998) Navistar DT466E I6 (1996–2004) Navistar 7.3L IDI V8 (1989–1994) Navistar T444E V8 (1994–2004)
Transmission	5-speed manual Allison AT545 4-speed automatic Allison MT643 4-speed automatic
Chronology
Successor	International 3300