International Debuts New Family of MaxxForce Diesel Engines
WARRENVILLE, IL – International Truck and Engine Corporation, a Navistar Company, has revealed its lineup of MaxxForce International diesel power engines for 2008-model-year trucks, and provided specifications and technical details.
WARRENVILLE, IL – International Truck and Engine Corporation, a Navistar Company, has revealed its lineup of MaxxForce International diesel power engines for 2008-model-year trucks, and provided specifications and technical details. Beginning in January, MaxxForce engines become the signature powerplant for International brand on-highway Class 4-8 commercial vehicles. In North America, the MaxxForce product line ranges from the upgraded 4.5L, V-6 MaxxForce 5 to the new MaxxForce 13 big-bore Class 8 engine. Another highlight is the all-new 6.4L MaxxForce 7.
MaxxForce engines are backed by a large North America commercial-truck dealer network with more than 900 dealer locations and 7,000 service technicians.
For 2008-model-year trucks, the MaxxForce engine lineup includes:
MaxxForce 5, built on International’s V-6 engine platform, features an upgraded intake throttle, a larger EGR cooler, and enhanced electronics. It will power Class 4-5 International CityStar commercial trucks with 200 horsepower and 440 ft.-lbs of torque.
MaxxForce 7, International’s all-new V-8 turbo, provides increased performance and responsiveness, fuel economy improvements, and quietness uncharacteristic of most commercial diesel engines. The MaxxForce 7 engine will power Class 5-7 International DuraStar series medium-duty trucks, IC brand buses, International brand commercial buses, and two vehicles in the International XT Family. MaxxForce 7 offers ratings of 200-230 hp and 560-620 ft.-lbs of torque. A 300-plus horsepower rating of the MaxxForce 7 will be offered in fall 2007.
MaxxForce DT is built on the DT 466 Inline 6-cylinder platform and provides reliability, durability, optimal fuel economy, improved serviceability, and lower cost of operation to owners and operators. MaxxForce DT will power Class 6-8 DuraStar and WorkStar trucks with 210-300 hp and 520-860 ft.-lbs of torque.
MaxxForce 9, built on International’s industry leading I-6 architecture, features a bigger EGR system, foam-molded wiring harnesses, and closed-crankcase ventilation system. The MaxxForce 9 powers Class 7-8 DuraStar and WorkStar commercial trucks with 300-330 hp and 800-950 ft.-lbs of torque.
MaxxForce 10, also built on the I-6 architecture, features a larger EGR system, foam-molded wiring harness, and closed-crankcase ventilation system. MaxxForce 10 powers Class 8 WorkStar and TranStar trucks with 310-350 hp and 1,050-1,150 ft.-lbs of torque.
MaxxForce 11 and MaxxForce 13 are International’s new big-bore diesel engines for the Class 8 truck market. These engines take advantage of recent technological advances to offer drivers a strong compacted-graphite iron cylinder block without added weight, outstanding fuel economy, excellent power characteristics, and quiet, low noise, vibration and harshness. The MaxxForce 11 will be offered in TranStar, while the MaxxForce 13 will be available in the ProStar. More technical specifications will be announced in 2007, leading up to the production launch in fall 2007.
More Operations

How St. Johns County Turned Fleet Data Into Better Replacement Decisions
St. Johns County, Florida, had fleet data, but turning it into reliable decision guidance was another matter. Instead of starting over with a new fleet management system, the county connected existing tools and built a scoring system that gives managers an objective look at fleet health.
Read More →
Fleet Forward Conference Introduces One-Day Passes for 2026
New one-day registration lets fleet professionals attend Tuesday, Wednesday, or Thursday, with passes available for $249.
Read More →
ENC Unveils its ZAVIR Medium-Duty Shuttle
Two variants of the concept shuttles were revealed: a low-floor configuration and a high-floor configuration.
Read More →
Could Your Next Fleet Technician Start as an Intern?
What if your next technician hasn’t worked in a fleet shop yet? What fleets are doing to free up time.
Read More →
How Phoenix Is Building Its Next Generation of Fleet Technicians
With more than 8,000 vehicles and pieces of equipment to maintain, the City of Phoenix could not afford to wait for fully trained technicians to walk through the door. Instead, they revamped their entire workforce strategy and showed how public fleets can create their own talent pipeline while preparing existing employees for increasingly complex vehicles.
Read More →
What’s Slowing Your Fleet Down?
Could a change in how work gets done help your fleet return vehicles to service sooner?
Read More →
Can Public Fleets Trust the Data Driving Their Decisions?
Public fleets have more data than ever, but inconsistent records and missing information can still undermine maintenance, replacement, and cost decisions.
Read More →
John Deere Introduces 40 P-Tier Compact Excavator
John Deere is adding a compact excavator designed for crews that need to move equipment between jobsites and handle multiple types of work with one machine. The 40 P-Tier weighs less than 10,000 pounds and offers configurable hydraulics, attachment options, and connected fleet-management capabilities.
Read More →
How Leading Fleets Improve and Why Business Plans Matter
This week, we look at what past Leading Fleet winners can teach us about making progress, plus how to build a business plan your fleet will actually use.
Read More →
Nominate a Fleet Leader for the 2027 Public Fleet Hall of Fame
Do you know a fleet leader who has made a lasting impact on the industry? Nominate this fleet professional for the 2027 Public Fleet Hall of Fame.
Read More →

