International Durastar

International DuraStar

An International DuraStar in use as a moving van
Manufacturer	Navistar International Corporation
Also called	International 4000 Series
Production	2002-present
Predecessor	International 4000 Series (1989)
Class	Class 5 & 6
Body style	Truck Tractor Straight truck Bus Cowled chassis Cutaway cab
Layout	Conventional 4x2 Conventional 6x4
Engine	Diesel
Transmission	Manual Automatic
Wheelbase	128–254 inches (3,251–6,452 mm)
Related	International 3300 International RXT International Workstar Ford F-650/F-750

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 engines, drivetrains, brakes, 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.

Current variants

A DuraStar serving as a cabin service truck at an airport

Truck

4100

The 4100 model has a wheelbase from 140" to 217", is powered by an International VT 365 and utilizes hydraulic brakes. It comes with an Allison 1000 HS/RDS 6-speed automatic transmission or a Fuller 6-speed manual. Its front axle capacity is 7,300 lb (3,310 kg). Rear axle capacity is 10,500 lb (4,760 kg). standard, 12,200 lb (5,530 kg) optional.^[1]

4300

The 4300 model has a wheelbase from 128" to 254", is powered by an International DT466 and utilizes either hydraulic or air brakes. 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.^[2]

4400

The 4400 model has a wheelbase from 140" to 254", is powered by an International DT570 / Maxxforce 9 and utilizes air brakes. 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.^[3]

The 4400 is also available as a tractor.^[4]

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: ^[5][6]

4300LP

• Front- 8,000 - 9,000 lb (4,100 kg).
• Rear- 12,200 - 19,000 lb (8,600 kg).

4400LP

• Front- 8,000 - 19,000 lb (8,600 kg).
• Rear- 13,500 - 19,000 lb (8,600 kg).

Bus

Main article: International 3300

Like the 4000-series before it, the DuraStar serves as a popular platform for bus manufacturers.

International 3200

Panoramic bus

3200

• The 3200 is sold with a cab, as it is designed for cutaway-cab applications for second-stage manufacturers. 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

International Durastar Engines

Engine Name	Engine Type	Horsepower	Torque	Availability
MaxxForce 7 VT365	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	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 DuraStar 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. ^[7]

See also

• Navistar International, the parent company.
• International Workstar

External links

• International Trucks
• Maxxforce Engines

Notes

1. ^ [1] International Trucks website- 4100
2. ^ [2] International Trucks website- 4300
3. ^ [3] International Trucks website- 4400
4. ^ [4] International Trucks website- 4400 4x2
5. ^ [5] Interntaional Trucks website- 4300 Lo-Profile
6. ^ [6] International Trucks website- 4400 Lo-Profile
7. ^ Electric Drive Transportation Association