The Multiquip 1889100020 is a genuine OEM Casing Cover designed for QP2TZ, QP2TB, QP2TH, and QP2TK series pumps. As an authorized Multiquip parts source, DHS Equipment supplies this component direct, so you can trust the fit and part number accuracy before you order. This casing cover is a direct OEM replacement confirmed for the QP2 pump family, covering trash and centrifugal pump variants across multiple engine configurations.
Key Features
- OEM-Matched Housing Geometry — Manufactured to the same dimensional tolerances as the original, ensuring a flush, gap-free seal against the pump volute with no rework needed.
- Genuine Multiquip Part — Sourced directly from Multiquip as a genuine OEM component, carrying part number 1889100020 for positive identification and ordering confidence.
- Broad QP2 Series Compatibility — Confirmed fitment across QP2TZ, QP2TB, QP2TH, and QP2TK models, covering Hatz, Briggs and Stratton, Honda, and Kubota-powered variants in a single part number.
- Maintains Pumping Efficiency — A correctly seated casing cover maintains internal pressure and directs flow through the impeller properly; a cracked or warped cover causes pressure loss, cavitation, and reduced output.
- Fluid Containment Integrity — On trash and dewatering pumps handling debris-laden or chemically aggressive water, a sound casing cover prevents external leakage and protects surrounding engine and frame components.
The casing cover encloses the pump volute and impeller housing, forming the sealed chamber that allows the pump to build suction and move water efficiently. It works in combination with the pump casing and wear plate to contain pressurized fluid within the system — if the cover cracks, warps, or loses its seal, the pump loses prime, output drops sharply, and water may escape around the housing. Replacing a damaged casing cover restores the pressure boundary that the entire pumping system depends on.
For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | 1889100020 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Casing Cover |
Compatibility & Fitment
| Name | Model |
|---|---|
| Trash Pumps | QP2TZ |
| Trash 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.
