1995 Mack RB OE No. 4379RD4191;. Part Type: HVAC Pressure Switch. 1996 Mack RB OE No. 4379RD4191;. 1997 Mack RB OE No. 4379RD4191;. 1998 Mack RB OE No. 4379RD4191;. 1999 Mack RB OE No. 4379RD4191;. 2000 Mack RB OE No. 4379RD4191;.
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