Blendtec compatibility lookup

Classic 575 Compatible Replacement Parts

Blendtec Classic 575 Blender

Confirmed fits

Part number: 40-609-50

Blender and food processor parts depend on jar diameter, drive socket, lid lock, and blade attachment style. Match Classic 575 against 40-609-50 on the model label, old part, or manual before ordering.

Before choosing replacement parts

Match the device label to Classic 575; series names alone can point to another part.
Compare the old part number against each confirmed fit before ordering.
Use the fit note when depth, cartridge stage, bag type, or kit contents are unclear.

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