Each Standard® HS539 is a direct-fit replacement electrically operated switch that replaces damaged OE units restoring A/C heater and blower function. Every Standard® A/C heater and blower switch is engineered using copper alloy conductors ensuring superior electrical conductivity with low resistive losses. All Standard® switches feature a robust design with high grade materials to meet the stringent demands of today's service professional. All of our switches are made to OE spec to ensure pr
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