this adapter is specifically dimensioned for the small body integrated valve train

System Safety: Replaces worn or pitted bars to maintain proper dielectric strength and prevent arcing

While the board is a direct fit

Key Benefits Factory-Calibrated Precision: Fixed 96°F to 165°F range eliminates the need for field adjustments and ensures reliable cycling

Prevents Oxidative Corrosion: Forms an airtight seal that protects copper and aluminum connections from moisture and chemical exposure

Lau 01333603 Blower Wheel 321042-401 this adapter is specifically dimensionedThe Lau 01333603 Blower Wheel is a precision engineered double inlet centrifugal fan designed for high performance air handling in residential and light commercial HVAC systems. This Direct Drive Blower Wheel, model DD9 7A, features a 9. 5 inch diameter and a 7. 125 inch width, making it a standard replacement for many OEM HVAC blower assemblies. Constructed with a 1 2 inch bore and a convex center disc, it is engineered for Counter Clockwise (CCW)