this is the official updated service part for both S1-2702-335P and 129694

Smith Cyclone water heaters and Lochinvar Knight modulating condensing boilers

Smith ignition component ensures optimal pilot burner compatibility and restores the system to factory performance levels without the need for field modifications

This auxiliary limit switch is typically an auto-reset component that restores the circuit once temperatures drop below the 125°F threshold

the "SP" version is the updated manufacturer replacement and is fully compatible with units originally using the older part number

Heil Quaker ICP 4681A20013N Motor Assy 30067439-890 this is the official updated208 230V CW Outdoor Motor Assy