this SPST furnace switch acts as a primary safety mechanism to prevent hazardous conditions by interrupting the burner circuit if heat exceeds calibrated limits

Measuring 8

making it suitable for unconditioned mechanical rooms

Key Benefits Precision-machined 3/16 orifice bore ensures accurate BTU delivery and secondary air mixing

this York furnace part ensures long-term resistance to thermal expansion and gas-stream corrosion

MARS 12871 Run Capacitor this SPST furnace switch actsThe MARS 12871 dual run capacitor is a heavy duty 40 5 MFD 370 VAC oval component engineered for high demand HVAC applications. This MARS 12871 run capacitor is a reliable aftermarket HVAC capacitor designed to stabilize voltage and current flow to both the compressor (40 MFD) and the fan motor (5 MFD) in split system condensing units. Rated for 370 volts, it features a leak proof, oil filled design that ensures optimal heat dissipation during