The Wacker Neuson 5100036373 is a genuine OEM Inlet Valve designed for the APT4S and APT4T series self-priming pumps. This includes Cold Weather configurations of both the APT4S and APT4T, as well as Electric Brake and Surge Brake variants of the APT4T. As a factory-sourced component, the 5100036373 meets the original design specifications set by Wacker Neuson for these pump models, ensuring proper seating, sealing, and flow control at the pump inlet. Verify your pump's model number before ordering to confirm fitment across the full APT4S and APT4T lineup.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's original material and dimensional specs, ensuring the valve seats and seals correctly under the pressures present at the pump inlet.
- Drop-In Fitment for APT4S and APT4T Series — Designed to install directly into APT4S and APT4T pump assemblies, including Cold Weather, Electric Brake, and Surge Brake configurations, without secondary modification.
- Broad APT Series Coverage — A single part number covers six distinct APT4S and APT4T pump variants, simplifying parts sourcing across your fleet.
- Restores Proper Priming and Flow Performance — A worn or failed inlet valve can cause loss of prime, reduced discharge flow, or pump cavitation; replacing it with the correct OEM part restores full pump performance.
- Fuel and Fluid System Compliance — Using the correct factory valve ensures the pump's inlet circuit operates within designed pressure and flow parameters, protecting downstream pump components.
The inlet valve controls the flow of liquid entering the pump during the priming and pumping cycle. It acts as a one-way gate that allows fluid to enter the pump housing while preventing backflow that would break the prime. When this valve wears, sticks, or fails to seat properly, the pump loses its ability to self-prime or maintain consistent suction, resulting in reduced output or a complete loss of pumping function. Replacing a faulty inlet valve promptly keeps the pump operating at rated capacity and protects the impeller and casing from the effects of running dry or cavitating.
Part Details
| Part Number | 5100036373 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Inlet Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| APT4T Pump, Electric Brake | APT4T | 5200019644, 5200019643 |
| APT4T Pump, Electric Brake, Cold Weather | APT4T CW | 5200019793, 5200019792 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
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.
