The Multiquip 05043901 Water Separator is a genuine OEM component designed for the QP4TZ and QP3TZ series trash pumps. Sourced directly from Multiquip, this part meets the exact specifications required for these Hatz diesel-powered quick-prime units. It is a direct-fit replacement for the original water separator position on both the QP4TZ and QP3TZ, with no adaptation needed. Keeping a properly functioning water separator in place helps protect the fuel system and ensures consistent pump operation on the toughest dewatering and trash-pumping applications.
Key Features
- Genuine OEM Fuel Protection: — Manufactured to Multiquip's exact filtration specification, this water separator removes moisture from diesel fuel before it can reach injectors or the fuel pump — critical for sustaining clean combustion in field conditions.
- Direct-Fit Replacement: — Engineered to match the original mounting configuration and inlet/outlet connections on QP4TZ and QP3TZ trash pumps, allowing straightforward swap-out during routine service.
- Confirmed Fitment: — Verified for the QP4TZ and QP3TZ quick-prime trash pump models, eliminating guesswork when ordering service parts for these units.
- Fuel System Integrity: — A failed or saturated water separator allows moisture-laden fuel to pass through, leading to rough running, hard starts, and accelerated wear on downstream fuel system components.
- Fuel System Safety: — On diesel-powered pumping equipment, water contamination in the fuel circuit can cause uncontrolled injection irregularities; a serviceable separator is a key safeguard in maintaining consistent, controlled engine operation.
A water separator sits in the fuel supply line between the tank and the engine, intercepting water droplets that naturally accumulate in diesel fuel through condensation and contamination. By collecting and holding that water before it reaches the injectors, it prevents misfires, corrosion inside the fuel system, and loss of power under load. When a water separator becomes saturated or damaged, water passes through unchecked — leading to rough running, hard starts, and potential long-term damage to precision fuel system components.
Part Details
| Part Number | 05043901 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Water Separator |
Compatibility & Fitment
| Name | Model |
|---|---|
| Trash Pumps | QP4TZ |
| Trash Pumps | QP3TZ |
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.
