This specialized AV-390 common parts kit includes a high-precision cam

The stainless steel power assembly protects against corrosion and fatigue

This genuine York burner features a precisely engineered orifice alignment and a stainless steel or high-grade aluminized construction designed to withstand thousands of thermal cycles without warping or flashback issues

it ensures proper venting and blower performance before allowing the ignition sequence to proceed

Trane WHL2353 Blower Wheel 321894-709 This specialized AV-390 common partsThe Trane WHL2353 Blower Wheel is a precision engineered OEM replacement part designed for high static applications in commercial and residential air handlers. Featuring a 10x7 nominal size, this double inlet blower wheel utilizes a clockwise (CW) rotation and 48 individual blades to maintain optimal static pressure within the furnace or fan coil assembly. Constructed from galvanized steel for corrosion resistance, the Trane WHL2353 ensures dynamic