Husqvarna Block Off Plate OEM #578095601

Husqvarna Block Off Plate (Inlet Pipe) OEM #578095601 — Genuine Inlet Pipe Blockoff Plate for Husqvarna Chainsaws

Maintain a sealed, leak-free intake system on your Husqvarna chainsaw with the genuine Inlet Pipe Blockoff Plate, OEM part number 578095601. This factory-original metal plate is officially designated the Inlet Pipe Blockoff Plate — a precision-fit sealing component used within the carburetor and intake assembly of compatible Husqvarna chainsaws.

A blockoff plate in the inlet pipe system serves as a permanent or service-position seal for an inlet port, passage, or opening within the carburetor or intake assembly. On Husqvarna chainsaws, inlet pipe blockoff plates are used to seal off unused carburetor inlet ports, provide a pressure-tight closure during carburetor testing or servicing, or permanently block secondary inlet passages that are not used in a particular engine configuration. A missing, cracked, or damaged blockoff plate allows unmetered air to enter the intake system — disrupting the air-fuel mixture, causing lean running conditions, rough idling, hard starting, loss of power, and potential engine damage from running too lean.

Replacing it with a genuine OEM plate ensures a factory-correct, pressure-tight seal that restores proper intake integrity and carburetor function.

Compatible Equipment: Fits select Husqvarna chainsaws requiring part #578095601. The 578-series part numbers are associated with Husqvarna professional and consumer chainsaw platforms. Always verify fitment using your specific model and serial number before ordering.

Always verify compatibility with your specific model and serial number before ordering. Consult your operator’s manual or parts diagram for correct installation location within the carburetor and inlet pipe assembly.