Features Navistar 7.3L Diesel Labor Costing Study Advertisement ByDoug Kaufman on Mar 1, 2001 The 7.3L IDI diesel engine originally produced by Navistar from 1989-Click Here to Read MoreAdvertisement Advertisement In this article: Features: Women in Motorsports: Jillian McLaughlin Features: Women in Motorsports: Janine Shoffner Features: Women in Motorsports: Katie Coleman Features: Women in Motorsports: Hannah Maloof Advertisement