Red Dot 4379-RD548330 Low Pressure Switch – Normally Open 10/42 PSI Cat 797F This is an M10 x

This is an M10 x 1

Steel-rubber composite gasket that seals the air-compressor housing to the gear case

Mack R / RB / RD / RW vocational chassis

Mack E7 / E-Tech / ASET (12L on-highway

Red Dot 4379-RD548330 Low Pressure Switch – Normally Open 10/42 PSI Cat 797F This is an M10 xRestore cabin cooling with the 2601284 pressure switch. This normally open pressure switch protects the compressor from low refrigerant conditions by cutting the compressor clutch when pressure drops below 10 PSI. 1 4" female thread fitting, direct replacement for OEM applications. Signs You Need a New Low Pressure Switch Compressor running with insufficient refrigerant charge A C system not shutting off at low pressure A C performance declining as