this part is compatible with various models across those brands that specify the S1-9951-0931 part number

the extended copper fittings are specifically engineered to dissipate heat

Always verify airflow via the HVAC blower motor and filter cleanliness before replacing the switch

This seal is optimized for McDonnell & Miller 21

Robertshaw 1830-702 Pilot Electrode Els PW 17895 this part is compatible withThe Robertshaw 1830 702 Pilot Electrode is a direct replacement spark ignition electrode designed for intermittent pilot systems and electronic ignition gas valves. Engineered with a specialized 2S 2 ceramic insulator, this component ensures sustained electrical isolation during high voltage sparking sequences. It features a precision spark gap configuration necessary for reliable gas burner ignition in commercial cooking equipment and HVAC furnace