Workhorse Increases Powertrain Warranty For Its Gas Motor Home Chassis

[DriVer]

FOR IMMEDIATE RELEASE

Five years or 100,000 miles is RV industry's best

UNION CITY, IN. Jan 25, 2007 "” Motor home chassis manufacturer Workhorse Custom Chassis continues its leadership in providing peace of mind to motor home owners "” it's now offering the best powertrain warranty in the motor home industry.

Workhorse will warranty its powertrains on gas motor home products, beginning with 2007 chassis models, for 100,000 miles or five years, whichever comes first. Production of 2007 platforms began in July 2006. Workhorse uses General Motors powertrains for its gas chassis. In September, General Motors also announced it would extend the powertrain warranty of its complete car and light truck lineup. That change applies to the popular Chevy-Workhorse 14,050 lb. GVWR Class C chassis for motor homes.

Workhorse Class A gas chassis all use GM's 8.1L Vortec™ engine, with the exception of the W16/18 model (16,000 and 18,000 lb. GVWR), where the 8.1 L engine is an option to the standard 6.0 L Vortec.

This upgrade applies to Workhorse's W16/18, W20/22, W24/25.5 and new Workhorse UFO™ gas chassis. The extended warranty covers the engine, transmission and rear axle assembly. It includes the Hydramatic 4L85-E or 4L80-E transmissions used with W16/18 chassis. The Allison transmissions used with the other models will continue to be covered by Allison's five-year or 200,000-mile warranty.

All other Workhorse parts and components supplied or installed by Workhorse will continue to be covered as before by Workhorse's limited three-year/36,000 mile warranty.

"This extended warranty reflects the confidence we have in the quality of our product. You can talk about quality, but the warranty says how well you back up the talk. This warranty covers the guts of the driving platform and provides additional peace of mind to the motor home owner,"� said Bill Walmsley, Workhorse RV marketing manager.

"We see ourselves as the customer's advocate to the RV industry,"� continued Walmsley. "These new warranty terms are part of our effort to elevate the level of RV quality and service "” exactly what RVers are demanding and what so many in our business are talking about. Additionally, average RVers trade in their motor home on a cycle that is just short of five years. Now they will have peace of mind throughout the ownership experience. What we're telling RVers is that the Workhorse chassis is not only great to drive "” it's the one you can rely on."�

Workhorse Custom Chassis

Workhorse Custom Chassis is ISO 9001 certified and a leader in the manufacture of chassis for motor homes, walk-in trucks and buses. It is a wholly owned subsidiary of International Truck and Engine Corporation. For additional information call 877-294-6773 or visit Workhorse.com.

International Truck and Engine Corporation is the operating company of Navistar International Corporation (NYSE: NAV). In addition to Workhorse brand chassis, the company produces International® brand commercial trucks, mid-range diesel engines and IC brand school buses, and is a private label designer and manufacturer of diesel engines for the pickup truck, van and SUV markets. A wholly owned subsidiary offers financing services. Additional information is available at: International Delivers.com.

[DriVer]

FOR IMMEDIATE RELEASE

Five years or 100,000 miles is RV industry's best

UNION CITY, IN. Jan 25, 2007 "” Motor home chassis manufacturer Workhorse Custom Chassis continues its leadership in providing peace of mind to motor home owners "” it's now offering the best powertrain warranty in the motor home industry.

Workhorse will warranty its powertrains on gas motor home products, beginning with 2007 chassis models, for 100,000 miles or five years, whichever comes first. Production of 2007 platforms began in July 2006. Workhorse uses General Motors powertrains for its gas chassis. In September, General Motors also announced it would extend the powertrain warranty of its complete car and light truck lineup. That change applies to the popular Chevy-Workhorse 14,050 lb. GVWR Class C chassis for motor homes.

Workhorse Class A gas chassis all use GM's 8.1L Vortec™ engine, with the exception of the W16/18 model (16,000 and 18,000 lb. GVWR), where the 8.1 L engine is an option to the standard 6.0 L Vortec.

This upgrade applies to Workhorse's W16/18, W20/22, W24/25.5 and new Workhorse UFO™ gas chassis. The extended warranty covers the engine, transmission and rear axle assembly. It includes the Hydramatic 4L85-E or 4L80-E transmissions used with W16/18 chassis. The Allison transmissions used with the other models will continue to be covered by Allison's five-year or 200,000-mile warranty.

All other Workhorse parts and components supplied or installed by Workhorse will continue to be covered as before by Workhorse's limited three-year/36,000 mile warranty.

"This extended warranty reflects the confidence we have in the quality of our product. You can talk about quality, but the warranty says how well you back up the talk. This warranty covers the guts of the driving platform and provides additional peace of mind to the motor home owner,"� said Bill Walmsley, Workhorse RV marketing manager.

"We see ourselves as the customer's advocate to the RV industry,"� continued Walmsley. "These new warranty terms are part of our effort to elevate the level of RV quality and service "” exactly what RVers are demanding and what so many in our business are talking about. Additionally, average RVers trade in their motor home on a cycle that is just short of five years. Now they will have peace of mind throughout the ownership experience. What we're telling RVers is that the Workhorse chassis is not only great to drive "” it's the one you can rely on."�

Workhorse Custom Chassis

Workhorse Custom Chassis is ISO 9001 certified and a leader in the manufacture of chassis for motor homes, walk-in trucks and buses. It is a wholly owned subsidiary of International Truck and Engine Corporation. For additional information call 877-294-6773 or visit Workhorse.com.

International Truck and Engine Corporation is the operating company of Navistar International Corporation (NYSE: NAV). In addition to Workhorse brand chassis, the company produces International® brand commercial trucks, mid-range diesel engines and IC brand school buses, and is a private label designer and manufacturer of diesel engines for the pickup truck, van and SUV markets. A wholly owned subsidiary offers financing services. Additional information is available at: International Delivers.com.