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From the city to the open road, MaxxForce Diesel Power engines provide the power for a variety of commercial vehicle applications for nearly every aspect of commerce. Commercial truck applications include: beverage, construction, emergency, government, landscaping, leasing, liquid or dry bulk, long haul or owner.

LOUISVILLE, KY. (March 25, 2010) – The new MaxxForce® Engine Brake by Jacobs® for MaxxForce 11 and MaxxForce 13 big bore diesel engines offers the highest engine braking horsepower per liter in the commercial trucking industry. Developed by Navistar and Jacobs Vehicle Systems, the compression-release engine-mounted brake is available in the all new International® ProStar®+ as well as the International TranStar® and WorkStar® trucks powered by MaxxForce 11- and 13-liter engines.

For maximum downhill braking performance between 351 to 398 horsepower at 1,900 to 2,100 rpm, for the MaxxForce 11 and between 415 to 470 horsepower at 1,900 to 2,100 rpm, for the MaxxForce 13.  The new brake also features:

·         Dedicated cam compression release technology for maximizing braking performance

·         Proven technology, durable and reliable operation

·         Braking power equal to positive power

·         Factory installed or dealer retrofit


“The MaxxForce Engine Brake is designed with all the premium features Jacobs Vehicle Systems offers, assuring our International truck customers they have the most capable engine brake in the industry”, said, Jim Hebe, Navistar vice president, North American sales operations.

The MaxxForce Engine Brake by Jacobs is comprised of two engine brake housings and special exhaust valve bridges. The engine brake is controlled by the engine control module and has three available braking levels depending on driver needs. The brake is fully integrated with the engine electronic controls and vehicle anti-lock braking system (ABS) for greater driver control and is fully functional with the Alison transmission.


“We are extremely pleased with the relationship between Jacobs Vehicle Systems and Navistar,” said Robert Perkins, vice president, marketing and business development, Jacobs Vehicle Systems.  “Working together with Navistar on the development of the MaxxForce Engine Brake by Jacobs has led to a benchmark product that meets all ‘voice of the customer’ requirements.”



About Navistar
Navistar International Corporation (NYSE: NAV) is a holding company whose subsidiaries and affiliates produce International® brand commercial and military trucks, MaxxForce® brand diesel engines, IC Bus brand school and commercial buses, Monaco RV brands of recreational vehicles, and Workhorse® brand chassis for motor homes and step vans. It also is a private-label designer and manufacturer of diesel engines for the pickup truck, van and SUV markets. The company also provides truck and diesel engine service parts. Another affiliate offers financing services. Additional information is available at


About Jacobs Vehicle Systems

Jacobs Vehicle Systems is a wholly-owned subsidiary of Danaher Corporation (NYSE:DHR). Jake Brake®
products are used by North American heavy-duty diesel engine manufacturers as well as Hino, Hyundai and Mitsubishi in Asia and DAF in Europe. With support sites in Europe, Japan and China, Jacobs Vehicle Systems is headquartered in Bloomfield, Conn., where it has a 260,000 square foot design, testing and manufacturing facility.  Registered to the TS16949 standard, Jacobs Vehicle Systems is the world’s leading producer of vehicle retarding and valve actuation technologies and can be found on the Internet at


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