Fits Mack R Model trucks and measures 2.85 in. wide, 2.85 in. high, and 2.8 in. long, sold individually. It supports the hood along its track so the panel can tilt or slide open and closed with less friction and wear. It serves as a direct physical match for the roller it replaces on these trucks.Interchanges:Mack 55MX26FeaturesHood roller for Mack R Model trucksDimensions: 2.85 in. W x 2.85 in. H x 2.8 in. LSold as 1 eachTech SpecsWidth: 2.85 in.Height: 2.85 in.Length: 2.8 in.Sell Pack: 1 EachUsed in this Truck Cab modelMack Hood, Grille & Headlamp Parts & Diagrams