The Wacker Neuson Water Pipe is a genuine OEM component designed for APT4S and APT4T series water pumps, including standard and cold weather configurations. As a direct OEM replacement, this water pipe is sourced from Wacker Neuson and built to the same specifications as the original part fitted at the factory. Compatibility spans the full APT4S and APT4T lineup — covering skid-mount, surge brake, electric brake, and cold weather variants — so you can order with confidence that is the correct part for your machine. Keep your pump running at full capacity by replacing worn or damaged water pipe components with this verified OEM part.
Key Features
- OEM-Grade Flow Path Integrity — Manufactured to exact Wacker Neuson dimensional and material standards, ensuring leak-free water routing through the pump system.
- Drop-In Replacement — Engineered to connect directly to existing fittings and ports on APT4S and APT4T pumps with no reworking of adjacent components.
- Broad APT Series Compatibility — Fits APT4S Pump with Skid, APT4T Pump with Surge Brake, APT4T Pump with Electric Brake, and all corresponding Cold Weather variants.
- Sustained Pump Output — A sound water pipe maintains proper flow volume and pressure; a cracked or failed pipe causes output loss, cavitation risk, and potential pump damage.
- Verified Part Number — Listed under Wacker Neuson part number 5200020129, cross-referenced across all six APT4S and APT4T model configurations for accurate fitment.
The water pipe in an APT series pump directs water flow through the pump housing, connecting key internal and external passages to maintain consistent fluid movement during operation. It plays a direct role in keeping water routed correctly between the pump inlet, impeller chamber, and discharge — any crack, blockage, or failed joint in this pipe will reduce pump efficiency or cause a complete loss of flow. Replacing a damaged water pipe promptly prevents downstream wear to seals, the impeller, and other internal components.
Part Details
| Part Number | 5200020129 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Water Pipe |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
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.
