The Multiquip 1889350351 Check Valve is a genuine OEM component designed for QP2 series centrifugal and trash pump models, including the QP2H, QP2TZ, QP2B, QP2TB, QP2TH, and QP2TK. As a direct OEM replacement, the 1889350351 is built to the same specification as the original part, ensuring a consistent, correct installation in compatible Multiquip pump assemblies. Sourced directly through authorized Multiquip distribution, this check valve is the right choice when you need confidence in both fit and function. DHS Equipment stocks genuine Multiquip parts so you can get your pump back in service without guesswork.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original material and sealing specifications, ensuring the valve seats and seals correctly under pump operating pressures.
- Direct Drop-In Replacement — Engineered to install in the same position as the original component, with no rework or adaptation needed on QP2 series pump assemblies.
- Broad QP2 Series Coverage — Compatible with QP2H, QP2TZ, QP2B, QP2TB, QP2TH, and QP2TK, spanning both centrifugal and trash pump configurations in the QP2 lineup.
- Maintains One-Way Flow Integrity — A correctly functioning check valve keeps fluid moving in the intended direction, protecting pump priming and preventing backflow that can stall or damage the pump.
- Fuel and Fluid System Reliability — A worn or failed check valve allows reverse flow, causing loss of prime and forcing repeated restarts — replacing it promptly restores consistent pump operation.
A check valve is a one-way flow control component that allows fluid to pass in only one direction while automatically blocking reverse flow. In a pump system, it plays a critical role in maintaining prime — without it, fluid drains back through the line when the pump is idle, requiring the pump to re-prime each time it starts. When the check valve wears, warps, or fails to seat properly, the pump loses its ability to hold prime efficiently, resulting in sluggish starts, reduced output, and added wear on internal components.
Part Details
| Part Number | 1889350351 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Check Valve |
Compatibility & Fitment
| Name | Model |
|---|---|
| Centrifugal Pumps | QP2H |
| Trash Pumps | QP2TZ |
| Centrifugal Pumps | QP2B |
| Centrifugal Pumps | QP2TB |
| Trash Pumps | QP2TH |
| Trash Pumps | QP2TK |
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.
