Wacker Neuson 5000409419 Suction Valve

The Wacker Neuson Suction Valve is a genuine OEM component designed for MDP3 and MDP3-CE series water pumps. As a direct factory replacement, this suction valve matches the original part specification, ensuring a straight-swap installation with no guesswork. Sourced directly from Wacker Neuson, part delivers the same fit and function as the valve installed at the factory. Keep your MDP3 pump running at full capacity with the correct OEM part for the job.

Key Features

• Genuine OEM Valve Integrity — Manufactured to Wacker Neuson's original material and dimensional specifications, ensuring the correct sealing action and flow characteristics required in a suction valve application.
• Drop-In Replacement — Engineered to seat and connect exactly as the original, making the swap straightforward for pump service technicians familiar with the MDP3 platform.
• Confirmed MDP3 Fitment — Compatible with MDP3 and MDP3-CE water pump models, covering both standard and CE-compliant variants in the series.
• Sustained Pump Prime and Flow — A correctly functioning suction valve maintains the prime and draw needed to move water efficiently; a worn or failed valve leads to loss of prime, reduced output, and pump cavitation.
• Fuel System Integrity — As a fluid-path component, using the correct OEM valve prevents bypass leakage that can compromise pump output and lead to premature wear on surrounding pump components.

The suction valve is a one-way check component located at the inlet side of the pump's fluid end. Its job is to allow water to be drawn into the pump chamber on the intake stroke while preventing backflow when pressure builds on the discharge stroke. When the suction valve wears, warps, or loses its seal, the pump loses prime, output drops noticeably, and the pump may run dry — accelerating wear across the entire fluid end assembly.

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.