Navistar is now offering a free one-year, 100,000-mile factory-backed warranty for engine and aftertreatment systems on qualifying used International LT Series or International RH Series on-highway vehicles purchased and delivered through December.

This offer includes model year 2018 or newer trucks purchased from March through December 2021 from any International dealer or used Truck Center, or any non-International dealer or independent seller, including fleet resellers or at auction.

Eligibility requirements for the vehicle include:

• Model year 2018 or newer LT or RH Series

• Delivered to an end user by Dec. 31

• Less than 550,000 miles at time of sale; 475 HP or less

• A clean health report provided by an International dealer less than 15 days prior to the warranty registration date

• Preventive maintenance or Department of Transportation inspection completed within the last 12 months

• Clean title (no salvage or junk)

• Retail sale in the U.S. to an end user in the U.S.

• Warranty registration submitted within 15 days of end user purchase

When the purchase is from an International Used Truck Center or International dealer, International will take care of the registration work at no charge and the warranty is effective at the time of sale.

When buying from a seller other than International or an International dealer, the end customer can visit an International dealer, have a health report run, provide documentation of the retail sale and evidence of preventive maintenance service within the last 12 months, and the warranty will be registered to them at no charge. The warranty will be effective at the date of sale or the date of the qualifying health report and PM service, whichever is later.

The customer is responsible for any preventive maintenance service or work required to pass the health report.

"International is committed to providing our customers with vehicles and service they can rely on and this warranty offer demonstrates our confidence in these products," said Tony Stinsa, vice president of International’s Used Truck division. "We are proud of the value offered by our used International LT and RH Series trucks and this warranty provides even more reason for a customer to buy one."