Birchmeier Piston Plate

Birchmeier Piston Plate

The Birchmeier Piston Plate (440-003-01) is a genuine replacement component for the pump piston assembly on compatible Birchmeier backpack sprayers. It supports the rubber piston ring (plunger) inside the pump cylinder, helping the assembly maintain proper sealing and build pressure during operation.

A cracked, worn, or damaged piston plate can contribute to poor pump performance or difficulty building pressure. Inspect the piston plate and surrounding piston components when servicing a sprayer with pressure problems.

Specifications

Compatibility Note: Check your Birchmeier backpack sprayer's parts breakdown to confirm that part 440-003-01 fits your pump assembly before ordering. If you're unsure which replacement part you need, contact us for assistance.