A range of severe-duty trucks manufactured by International Truck is the International WorkStar. The WorkStar is the successor of International’s 7400 and 7600 trucks. When WorkStar was introduced in 2008, the ‘thousand series’ name was deleted entirely. The revised bonnet and grille and the additional MaxxForce Engine choices mirrored this shift in the truck’s physical architecture. This article focuses on the 2007 International 7400

Performance and Fuel Economy

In 2014, WorkStar had four diesel engines to choose from. The MaxxForce DT, an inline-six with 215 horsepower (160 kW) at 2,200 rpm, is rated lower. On the top end, there is the N13 with up to 475 horsepower (354 kW) at 1850 revs, which is an inline-six with a displacement of 758 cu in (12.4 L). Also, there are Eaton/Fuller manual gearboxes ranging from six to 18 gears and a self-shifting model. A similarly wide range of options is available for Allison’s automatic gearboxes.

There are a wide variety of configurations available for the WorkStar. The 7300-7500 all-wheel-drive 4×4 variants are available for all vehicles. 6×4 tandems and 6×6 tandems are available in the 7400-7600 range, while the 7600 may be equipped with an 8×6 configuration with a “tridem” with three powered axles. Front axles on most models may be adjusted either forward or set back. Engine management and chassis monitoring have gotten more sophisticated because of the development of electrical systems. PTOs, body operations, snowplows, and other sorts of auxiliary illumination may all be factory-installed. The 2007 International 7400 includes conventional, extended, and crew cab options. They are made of galvanized steel and may have a heated windshield, heated mirrors, air conditioning, and various other interior choices available.

Cab Comfort

Comfort for the driver and passengers is ensured by the 82″ wide cab’s roughly 40″ headroom and 30″ legroom each. Take advantage of the additional 26″ of usable bench seats and greater passenger capacity in your mobile command center. There has about 40″ of headroom and an 82″ breadth to accommodate all passengers, even on extended journeys.


First, of its kind, OnCommandTM Connection provides you with real-time truck performance monitoring, warnings, health reports, and even action plans through unique remote diagnostics. The unique and adaptable Diamond Logic® electrical system boosts productivity, safety, and performance with more than 200 body integration and driver efficiency features. Optimizes your vehicle’s performance by allowing two-way communication and safe wireless reprogramming over Bluetooth.


If you’re looking for a lightweight chassis that nevertheless has a good strength-to-weight ratio and is easy to modify, the single-frame rail system is for you. The radiator may be placed above the frame rails for optimal ground clearance and longevity in both on- and off-road settings, allowing for continuous front engine power takeoff (FEPTO).

Including a 3.35 rbm single-frame rail, this system provides a variety of alternatives. Front frame extensions may be purchased to move the bumper forward, allowing for installing pumps, winches, and other heavy-duty equipment. A five-step painting procedure ensures long-term protection against corrosion and fading of the cab. The heavy duty truck paint and cab corrosion are covered by warranties that last for a combined total of one year and one million miles.

This International 7400 can handle whatever you throw at it. Accordingly, the huck-bolted chassis is practically unbreakable, with a larger clamping load that won’t release under stress—more time spent working and less time spent shopping. Year-round occupations need year-round effort. Improved vision in adverse conditions may be achieved via clear sightlines. Heated windshields protect wiper blades and the cowl from snow and ice buildup.


  • Height: 156 in
  • Length: 300 in
  • Width: 132 in
  • Curb weight: 65,000 lbs

Engine type: DT466


Wheel cuts of up to 50 degrees are possible with the most common set-forward and set-back axle combinations, making them ideal for urban driving and off-road use. Using a sloping hood, you’ll have the finest visibility possible when working on job sites (not available with FEPTO placement). Confidence and improved handling may be gained from enhanced visibility.


Keeping a heavy duty truck working is critical to the bottom line. When considering maintenance or repair, it’s important to consult the correct booklet. The proper 2007 International 7400 manuals can guide you toward maintaining or repairing your machine the right way.

  • Diagnostics
  • Repair Processes
  • Diagrams
  • Referencing

The 2007 International 7400 service manual will cover diagnostic procedures and repair processes. In all, the manuals are quite vast and typically cover every aspect of the vehicle’s service and repair.

2007 International 7400

This differs in content from other manuals types. For example, when drivers purchase the truck, a 2007 International 7400 operators manual containing all the required information for future maintenance, vehicle operation, and features was included. Topics of this section include:

  • Introduction
  • Overview
  • Operation
  • Maintenance
  • Troubleshooting

While this list is thorough, the operator’s manual for the International 7400 provides more operational suggestions to enhance the user experience.

Electronic Stability Control

HX Series vehicles are equipped with Electronic Stability Control by International to keep them stable and stable under hard braking and on icy roads. Improving the driver’s safety and confidence while on the road. Air disc brakes are an option for both the front and back of the vehicle, and they give a more secure stop, greater braking feel, and more stopping force. As a result, they will last longer and require less maintenance.