Does this part replace the older 626407 model

Enhanced Durability: Zinc plated steel construction prevents oxidation and mechanical wear in rigorous HVAC environments

For technicians diagnosing a "4-flash" error code or an open limit circuit

as the 440VAC rating allows it to safely replace 370V units

Can I use this on a dual-dial pneumatic thermostat

Trane HTR3384 Crankcase Heater Does this part replace theThe Trane HTR3384 is a professional grade insertion type crankcase heater designed to maintain critical compressor oil temperatures during the off cycle. Operating at 230 Volts with a 65 Watt output, this heater prevents refrigerant migration and oil dilution, effectively mitigating the risk of liquid slugging and mechanical failure during cold weather startups. As a direct replacement for HTR1298, this OEM component ensures a precise mechanical fit