Wacker Neuson 5000180239 Diaphragm

The Wacker Neuson Diaphragm is a genuine OEM diaphragm designed for the PDT2A, PDT2, and PDI2A(I) diaphragm pumps. As a factory-sourced component, it meets the exact material and dimensional specifications of the original part, ensuring a correct, trouble-free installation. This genuine OEM part is verified to fit the PDT2A, PDT2, and PDI2A(I) pump models, so you can order with confidence knowing you have the right diaphragm for your machine.

Key Features

• OEM-Grade Flex Material — Manufactured to the same compound and thickness spec as the original, maintaining the pumping membrane's rated flex cycle life.
• Direct-Fit Replacement — Matches the original mounting bolt pattern and bead profile, dropping straight into the pump head without trimming or adapting.
• Confirmed Fitment — Genuine OEM part verified for PDT2A, PDT2, and PDI2A(I) diaphragm pump models.
• Restored Pumping Efficiency — A worn or cracked diaphragm loses its seal, causing loss of prime and reduced flow; a fresh OEM diaphragm brings output back to rated capacity.
• Leak Prevention — A correctly seated diaphragm keeps pumped fluid on the discharge side and prevents bypass leakage back into the drive chamber, protecting internal pump components.

The diaphragm is the flexible membrane at the heart of a diaphragm pump — it flexes back and forth to create the suction and discharge strokes that move fluid through the pump head. Because it is in constant motion and in direct contact with the pumped media, it is one of the highest-wear components in the pump. Over time, the material fatigues, cracks, or loses elasticity, which leads to loss of prime, reduced flow rate, or fluid bypassing into the drive side of the pump. Replacing a worn diaphragm with a genuine OEM part restores full pumping performance and protects the surrounding pump components from contamination damage.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.