4 Seasons HVAC Pressure Switch For 1983-1996 Mack MS300T Mid-Liner

1983 Mack MS300T Mid-Liner OE No. 4379RD546460; 4379RD559761;. 1984 Mack MS300T Mid-Liner OE No. 4379RD546460; 4379RD559761;. 1985 Mack MS300T Mid-Liner OE No. 4379RD546460; 4379RD559761;. 1986 Mack MS300T Mid-Liner OE No. 4379RD546460; 4379RD559761;.