International ProStar

The International ProStar is a line of Class 8 trucks that was manufactured by Navistar International from 2006 to 2017. Marking the introduction of the "-Star" branding nomenclature to International, the conventional-cab ProStar replaced the 9400i (and shorter 9200i). Competing against the Freightliner Cascadia and the Kenworth T2000/Peterbilt 387, the ProStar was an aerodynamically-enhanced conventional.[1]

International ProStar
2006-2007 ProStar sleeper cab of USA Truck
Overview
ManufacturerInternational Trucks
Also calledJAC Gallop V7 (China)
Production2006-present (LT Series only)
Assembly
Body and chassis
ClassClass 8
Powertrain
EngineInternational MaxxForce 11
International MaxxForce 13
Cummins ISX15
Transmission
  • Manual
  • Automatic
  • Automated Manual
Chronology
PredecessorInternational 9400i
SuccessorLT Series

Offered in both day-cab and sleeper-cab configurations, the ProStar was configured primarily for long-distance highway use.[1]

Initially assembled in Chatham, Ontario until 2009[1][2], the ProStar was assembled in Springfield, Ohio and Escobedo, Mexico until its discontinuation. As part of a substantial model revision, International reintroduced the ProStar as the International LT for 2017 (LT=Line-haul Tractor).[3]

Overview
2013 International ProStar+

Sharing its NGV (Next-Generation Vehicle[4]) cab with the TranStar, LoneStar, and DuraStar, the ProStar was developed as a $300 million project to produce the most fuel-efficient Class 8 truck in North America, along with improving driver ergonomics and reducing maintenance complexity.[1][5]

For both day-cab and multiple sleeper-cab configurations, the ProStar was based on a 122-inch BBC dimension with a set-back front axle. The model line is powered by the MaxxForce 11 and 13 diesels[6], along with the Cummins ISX15 diesel. For 2015, Navistar introduced its N13 diesel as an option, replacing the MaxxForce engines.

In 2010, the ProStar was renamed the ProStar+ as part of a model revision. Coinciding with emissions and fuel-economy refinements (including 700 pounds of weight reduction[6]), the ProStar+ received updates to the interior to increase interior functionality.[6] For 2015, a second revision was introduced as an option, making it the ProStar ES (Efficiency Specification[7]). Coupled with further exterior aerodynamic enchancements, the ProStar ES achieved further fuel economy gains nearly through engine and transmission controls; an automated manual transmission was standard.[7]

International LT (2017-present)
2019 International LT625

Introduced for 2017 production, the International LT serves as the replacement for the ProStar. Using the NGV cab (under a substantial revision), the LT improves its fuel economy over 7% over the ProStar+, intended to save an operator over $2000 per year in fuel costs.[3] Replacing the ISX15, the standard engine is a Cummins X15, with a Navistar N13 returning as an option.

Again configured for long-distance highway use, the LT is produced in day-cab and sleeper-cab configurations.[3]

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References
  1. "International(R) ProStar(TM) Unveiled at Largest Trucking Show in the World; More than 75,000 attendees worldwide flock to see new flagship aerodynamic tractor". www.businesswire.com. 2006-03-28. Retrieved 2019-12-30.
  2. "Navistar plant in Chatham, Ontario". Bing. Retrieved 2013-04-22.
  3. Reiskin, Jonathan S. (2016-10-01). "Navistar Unveils International LT to Replace ProStar". Transport Topics. Retrieved 2019-12-30.
  4. Writer, James P. Miller, Tribune Staff. "NAVISTAR BETTING HEAVILY ON `NEXT GENERATION' LINE". chicagotribune.com. Retrieved 2019-12-30.
  5. "International unveils the ProStar Class 8 flagship aerodynamic tractor at world's largest Trucking Show". Gizmag.com. Retrieved 2013-04-22.
  6. Kong, Benson (26 March 2010). "Navistar's Class 8 International ProStar+ Makes 2010 Debut". TruckTrend. Retrieved 24 July 2012.
  7. Truck, Navistar International Corporation; International. "International Truck Introduces Enhancements to International ProStar ES". www.prnewswire.com. Retrieved 2019-12-30.
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