International 3000

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International 3000/3900
IC RE-300 Fairfax, Virginia.jpg
IC Bus RE-Series (current model)
Manufacturer Navistar International
Production 1990-present
Body and chassis
Class Type D
  • front-engine/forward-control 4x2
  • rear-engine 4x2
Body style(s)

Bare chassis

Vehicles see below
Engine(s) Diesel (International)

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.


International-branded 2002 AmTran RE

Introduced in 1996 as a chassis for the AmTran RE, the 3000 was the first rear-engine bus chassis produced in nearly 20 years. Aside from a few buses bodied by Corbeil in the late 1990s, this chassis has been used exclusively by AmTran and its Navistar corporate successor IC Bus. In production for 20 years unchanged, it has one of the longest production runs of a bus chassis in North America.

From 1996 to 2016, the 3000 was powered exclusively by International diesel engines. Introduced with the T444E V8 engine, the engine lineup was expanded in 1997 to include the DT engine family and successor V8 engines, including the VT365 and MaxxForce 7.


IC FE300 (Discontinued)

Introduced as the replacement for the long-running International Harvester 1853FC forward-control chassis, the 3900 was first produced in 1990. Along with its IHC predecessor, many body manufacturers sourced the 3900 as the replacement for the discontinued General Motors S7 and Asia-Smith Motors forward-control chassis. By the mid-1990s, Navistar subsidiary AmTran became the sole user of the 3900. In 2010, production of front-engine bus chassis was discontinued.

All 3900 chassis were powered by variations of the DT engine family.


While a bare chassis instead of a cowled chassis, the 3900/3000 maintained mechanical commonality with the 3800 conventional. This included shared powertrain and suspension components, while interior parts included Navistar instrument panels and steering columns. The 3800 itself was based on the International 4700/4900.

As Navistar abandoned its use of MaxxForce engines (due to the use of EGR emissions treatment systems), the company announced that the MaxxForceDT was replaced by the Cummins L9 for 2017 production, with the Cummins B6.7 as an option for 2018.[1]



Unlike the 3800 conventional, the 3000/3900 were only produced with automatic transmissions.

  • Allison AT545
  • Allison MT643
  • Allison World Transmission (MD3060)


Manufacturer Model Name Production Years Notes
International 3900 buses
American Transportation Corporation
The AmTran Genesis and AmTran FE are evolutions of the Ward Senator.
Carpenter Industries, Inc.
Counselor FE 1991–1992 In 1993, Carpenter switched to a chassis from Spartan Motors
Les Enterprises Michel Corbeil, Inc. EMC 1st Premier 1991-1999 [clarification needed] The 1st Premier was never sold outside of Canada.
IC Bus IC FE300 2003–2010 IC Bus was the final user of the 3900 in school bus form.
Ward Body Works Senator 1990–1992 The Ward Senator was the first bus to use the 3900 chassis.
Wayne Corporation Lifestar 1991–1992 In 1993, Wayne Wheeled Vehicles restarted production of the Lifestar with a chassis from Crane Carrier Corporation.
International 3000 buses
American Transportation Corporation
AmTran RE 1996-2002 The AmTran RE was the debut model of the Navistar 3000 chassis.
IC Bus
  • IC RE200/300
  • RE-Series
  • RC-Series (commercial)
Les Enterprises Michel Corbeil, Inc. Corbeil Rear Engine 2000 Never sold outside of Canada.

See also[edit]


  1. ^ a b c Gray, Ryan. "IC Bus Introduces RE Series School Bus with Cummins L9". Retrieved 2016-09-11.