Can I use this to replace a 40154B017 switch

it is the specified technical replacement for Nordyne 7021-11385

They are functionally and physically identical for all Lennox-family applications

Johnson Controls VA-3100-501 Linkage Kit

If you notice reduced airflow or excessive motor vibration that isn't solved by cleaning

Carrier KGASB0201ALL Downflow Base 320819-301 Can I use this toThe Carrier KGASB0201ALL Downflow Base is a critical support component designed specifically for downflow furnace installations surface mounted on combustible flooring. As an OEM furnace subbase kit, this unit facilitates a safe, non combustible transition between the chassis and the structure, ensuring strict adherence to mechanical codes. Engineered for high temperature resilience, it is compatible with Carrier multi poise gas furnaces, including