1984 International S2554 1.5 Ton; OE No. 431606R1; Superheat: 8;. 1989 International S2554 1.5 Ton; OE No. 431606R1; Superheat: 8;. 1986 International S2554 1.5 Ton; OE No. 431606R1; Superheat: 8;. 1987 International S2554 1.5 Ton; OE No. 431606R1; Superheat: 8;.