International Durastar
Encyclopedia
The International DuraStar, originally introduced as the International 4000 Series, is a medium-duty truck
produced by Navistar International
. First produced in 2002, it is the successor to the 4000 Series
of the 1990s.
It is available in three variants, which are built on the same chassis
. They differ in engine
s, drivetrains
, brake
s, and cargo
capacity. It is a popular commercial platform used in a wide variety of applications, such as emergency services, towing
, flatbed truck
and as a cargo box truck
. Variants of the Durastar are commonly used as a platform for both school buses and commercial buses.
The 4100 model has a wheelbase from 140" to 217", is powered by an International VT 365 and utilizes hydraulic brake
s. It comes with an Allison 1000 HS/RDS 6-speed automatic transmission or a Fuller 6-speed manual. Its front axle capacity is 7300 lb (3,311.2 kg). Rear axle capacity is 10500 lb (4,762.7 kg). standard, 12200 lb (5,533.8 kg) optional.
4300
The 4300 model has a wheelbase from 128" to 254", is powered by an International DT466
and utilizes either hydraulic or air brake
s. It comes with Fuller 6 or 7-speed manual transmissions or Allison 2000 and 3000 Series automatic transmissions. Its front axle capacity is 8000-14000 lb. Rear axle capacity is 12,200-23,000 lb.
4400
The 4400 model has a wheelbase from 140" to 254", is powered by an International DT570
/ Maxxforce 9 and utilizes air brake
s. Transmissions include Fuller 6, 7, and 10-speed manuals along with Allison
Vocational 3000 & 3500 Series automatics. Its front axle capacity is 8,000-14,000 lb. Rear single axle capacity is 13,500-26,000 lb.
The 4400 is also available as a tractor.
4300LP
4400LP
before it, the DuraStar serves as a popular platform for bus manufacturers.
3200
3300
Hybrid diesel-electric
truck. International Truck and Engine teamed with the Hybrid Truck Users Forum (HTUF), a consortium of utility industry customers, Eaton Corporation
, the US Federal Government and the Calstart organization to assist with the cost of bringing the technology to market. It also provides direct customer feedback and support.
Truck
A truck or lorry is a motor vehicle designed to transport cargo. Trucks vary greatly in size, power, and configuration, with the smallest being mechanically similar to an automobile...
produced by Navistar International
Navistar International
Navistar International Corporation is a United States-based holding company that owns the manufacturer of International brand commercial trucks, MaxxForce brand diesel engines, IC Bus school and commercial buses, Workhorse brand chassis for motor homes and step vans, and is a private label...
. First produced in 2002, it is the successor to the 4000 Series
International Harvester S-Series
The International Harvester S-Series was a medium-duty truck line manufactured by International Harvester. The S-Series was first introduced in mid-1977 as a replacement for the International Harvester Fleetstar. In 1979, other versions of the S-Series were introduced as the successor to the...
of the 1990s.
It is available in three variants, which are built on the same chassis
Chassis
A chassis consists of an internal framework that supports a man-made object. It is analogous to an animal's skeleton. An example of a chassis is the underpart of a motor vehicle, consisting of the frame with the wheels and machinery.- Vehicles :In the case of vehicles, the term chassis means the...
. They differ in engine
Engine
An engine or motor is a machine designed to convert energy into useful mechanical motion. Heat engines, including internal combustion engines and external combustion engines burn a fuel to create heat which is then used to create motion...
s, drivetrains
Powertrain
In a motor vehicle, the term powertrain or powerplant refers to the group of components that generate power and deliver it to the road surface, water, or air. This includes the engine, transmission, drive shafts, differentials, and the final drive...
, brake
Brake
A brake is a mechanical device which inhibits motion. Its opposite component is a clutch. The rest of this article is dedicated to various types of vehicular brakes....
s, and cargo
Cargo
Cargo is goods or produce transported, generally for commercial gain, by ship, aircraft, train, van or truck. In modern times, containers are used in most intermodal long-haul cargo transport.-Marine:...
capacity. It is a popular commercial platform used in a wide variety of applications, such as emergency services, towing
Tow truck
A tow truck is a vehicle used to transport motor vehicles to another location , or to recover vehicles which are no longer on a drivable surface.Towing services are generally provided by an emergency road service operator...
, flatbed truck
Flatbed truck
A flatbed truck is a type of truck which can be either articulated or rigid. As the name suggests, it has an entirely flat, level 'bed' body with no sides or roof...
and as a cargo box truck
Box truck
A box truck, also known as a cube truck, cube van, bob truck, box van, or straight truck, is a truck with a cuboid-shaped cargo area.-Road vehicles:...
. Variants of the Durastar are commonly used as a platform for both school buses and commercial buses.
Current variants
Truck
4100The 4100 model has a wheelbase from 140" to 217", is powered by an International VT 365 and utilizes hydraulic brake
Hydraulic brake
The hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing ethylene glycol, to transfer pressure from the controlling unit, which is usually near the operator of the vehicle, to the actual brake mechanism, which is usually at or near the wheel of the...
s. It comes with an Allison 1000 HS/RDS 6-speed automatic transmission or a Fuller 6-speed manual. Its front axle capacity is 7300 lb (3,311.2 kg). Rear axle capacity is 10500 lb (4,762.7 kg). standard, 12200 lb (5,533.8 kg) optional.
4300
The 4300 model has a wheelbase from 128" to 254", is powered by an International DT466
Navistar DT engine
The Navistar DT engine family is a line of mid-range inline-6 diesel engines. Withhorsepower ratings ranging from to , the Navistar DT engines are used primarily in medium-duty truck and bus...
and utilizes either hydraulic or air brake
Air brake (road vehicle)
Air brakes are used in trucks, buses, trailers, and semi-trailers. George Westinghouse first developed air brakes for use in railway service. He patented a safer air brake on March 5, 1872. Originally designed and built for use on railroad train application, air brakes remain the exclusive systems...
s. It comes with Fuller 6 or 7-speed manual transmissions or Allison 2000 and 3000 Series automatic transmissions. Its front axle capacity is 8000-14000 lb. Rear axle capacity is 12,200-23,000 lb.
4400
The 4400 model has a wheelbase from 140" to 254", is powered by an International DT570
Navistar DT engine
The Navistar DT engine family is a line of mid-range inline-6 diesel engines. Withhorsepower ratings ranging from to , the Navistar DT engines are used primarily in medium-duty truck and bus...
/ Maxxforce 9 and utilizes air brake
Air brake (road vehicle)
Air brakes are used in trucks, buses, trailers, and semi-trailers. George Westinghouse first developed air brakes for use in railway service. He patented a safer air brake on March 5, 1872. Originally designed and built for use on railroad train application, air brakes remain the exclusive systems...
s. Transmissions include Fuller 6, 7, and 10-speed manuals along with Allison
Allison Transmission
Allison Transmission is an American manufacturer of commercial duty automatic transmissions and hybrid propulsion systems. Allison products are specified by over 250 of the world’s leading vehicle manufacturers and are used in many market sectors including bus, refuse, fire, construction,...
Vocational 3000 & 3500 Series automatics. Its front axle capacity is 8,000-14,000 lb. Rear single axle capacity is 13,500-26,000 lb.
The 4400 is also available as a tractor.
Sub-variants
The 4300 and 4400 are also available in Lo-Profile configurations, with a lower platform for easier cab and loadbed access. They differ in axle capacity as follows:4300LP
- Front- 8,000 - 9000 lb (4,082.3 kg).
- Rear- 12,200 - 19000 lb (8,618.3 kg).
4400LP
- Front- 8,000 - 19000 lb (8,618.3 kg).
- Rear- 13,500 - 19000 lb (8,618.3 kg).
Bus
Like the 4000-seriesInternational Harvester S-Series
The International Harvester S-Series was a medium-duty truck line manufactured by International Harvester. The S-Series was first introduced in mid-1977 as a replacement for the International Harvester Fleetstar. In 1979, other versions of the S-Series were introduced as the successor to the...
before it, the DuraStar serves as a popular platform for bus manufacturers.
3200
- The 3200 is sold with a cab, as it is designed for cutaway-cab applications for second-stage manufacturersSecond stage manufacturerA second stage manufacturer, known in the industry as "bodybuilder," builds such products as bus and truck bodies, ambulances, motor homes, and other specialized vehicles....
. Available with the Maxxforce7 engine.
3300
- The 3300 is sold as a cowled chassis, intended primarily for conventional-type (Type C) school buses. Available with Maxxforce7 and MaxxforceDT engines.
Powertrain
| Engine Name | Engine Type | Horsepower | Torque | Availability |
|---|---|---|---|---|
| MaxxForce 7 VT365 Navistar VT engine The International Truck and Engine VT engine, also sold as the Ford Power Stroke, is a Diesel V8 engine. It is used as the Power Stroke in Ford's F-Series Super Duty and under the International name in the International XT trucks... |
6.0L V8 (VT365) 6.4L V8 (MaxxForce 7) |
200-230HP | 560 ft-lbf to 620 ft-lbf | 3200, 3300, 4100, 4300 |
| MaxxForce DT/DT466 Navistar DT engine The Navistar DT engine family is a line of mid-range inline-6 diesel engines. Withhorsepower ratings ranging from to , the Navistar DT engines are used primarily in medium-duty truck and bus... |
7.6L inline-6 | 210-255 hp | 560 ft-lbf to 660 ft-lbf | 3300, 4300, 4400 |
| MaxxForce 9 | 9.3L inline-6 | 225-300hp | 620 ft-lbf to 860 ft-lbf | 4400 |
Hybrid trucks
In 2007, Navistar's International Truck and Engine Corporation became the first company to enter hybrid commercial truck production, with the International DuraStarInternational Durastar
The International DuraStar, originally introduced as the International 4000 Series, is a medium-duty truck produced by Navistar International. First produced in 2002, it is the successor to the 4000 Series of the 1990s....
Hybrid diesel-electric
Diesel-electric
Diesel-electric transmission or diesel-electric powertrain is used by a number of vehicle and ship types for providing locomotion.A diesel-electric transmission system includes a diesel engine connected to an electrical generator, creating electricity that powers electric traction motors...
truck. International Truck and Engine teamed with the Hybrid Truck Users Forum (HTUF), a consortium of utility industry customers, Eaton Corporation
Eaton Corporation
Eaton Corporation is a global diversified power management company with 2010 sales of $13.7 billion. The company is a leading provider of electrical components and systems for power quality, distribution and control; hydraulics components, systems and services for industrial and mobile equipment;...
, the US Federal Government and the Calstart organization to assist with the cost of bringing the technology to market. It also provides direct customer feedback and support.
See also
- Navistar InternationalNavistar InternationalNavistar International Corporation is a United States-based holding company that owns the manufacturer of International brand commercial trucks, MaxxForce brand diesel engines, IC Bus school and commercial buses, Workhorse brand chassis for motor homes and step vans, and is a private label...
, the parent companyParent companyA parent company is a company that owns enough voting stock in another firm to control management and operations by influencing or electing its board of directors; the second company being deemed as a subsidiary of the parent company...
. - International WorkstarInternational Workstar-Models:*WorkStar 7300*Workstar 7400*WorkStar 7500*WorkStar 7600*WorkStar 7700*WorkStar Hybrid 4x4...