Dyson DC39 Canister Pre-Filter Assembly 3332 a worn wheel or axle

a worn wheel or axle is often the culprit

Verify your model number on the data plate before ordering

A cracked or broken duct leaks air and disrupts the intended flow

Construction: supplied complete with the lens and switch

Dyson DC39 Canister Pre-Filter Assembly 3332 a worn wheel or axleSized for the Dyson DC39 canister line, this replacement pre filter assembly (Part #F627) fits the Dyson DC39, DC39C, DC37C, DC33C, and DC28C. It guards the motor by trapping dust that carries past the first filtration stage inside the bagless canister. As a pre filter fills with fine debris, airflow through the machine drops and the motor runs hotter to compensate. You notice fading suction and a warmer exhaust. Swapping in a clean assembly restores