The Multiquip 0131151220 is a genuine OEM Cap Screw M12X20 Delivery Cover designed for QP4TB, QP4TK, QP4TKT, QP4TZ, and QP4TH series trash pumps. Sourced directly from Multiquip, this fastener meets the exact torque and dimensional specifications required for secure delivery cover retention on these pump models. Correct fastener spec is critical on high-vibration pump applications — substituting an incorrect grade or thread pitch can compromise the delivery cover seal and lead to leaks or cover failure. Verify your model code against the fitment list before ordering to ensure 0131151220 is the right cap screw for your unit.
Key Features
- Genuine OEM Fastener Grade — Manufactured to the exact M12x20 thread specification and hardness grade called out in the Multiquip parts schema, ensuring proper clamp load on the delivery cover joint.
- Delivery Cover Application — Engineered specifically for the delivery cover fastening points on QP4T-series trash pumps, threading directly into existing bosses without rework.
- Broad QP4T Series Fitment — Confirmed for QP4TB, QP4TK, QP4TKT, QP4TZ, and QP4TH trash pump models under the Multiquip Quick-Prime lineup.
- Vibration-Environment Integrity — Correctly torqued OEM-spec cap screws maintain delivery cover clamping force through the sustained vibration cycles typical of trash pump operation, preventing cover movement and discharge path leaks.
- Direct OEM Sourcing — Supplied as a genuine Multiquip part, part number 0131151220, so you receive the same fastener installed at the factory with no guesswork on grade or finish.
The delivery cover cap screws on a trash pump are responsible for clamping the discharge-side cover firmly against the pump volute housing, maintaining a sealed flow path from the impeller to the discharge port. On a working trash pump handling abrasive slurry and debris-laden water, these fasteners are subject to continuous vibration and pressure cycling — a worn, stripped, or incorrect-grade screw can allow the cover to shift, breaking the seal and causing discharge leaks or reduced pump output. Replacing a damaged or missing cap screw with the correct OEM-spec M12x20 fastener restores full clamping integrity and keeps the pump operating at rated flow and pressure.
Need help confirming fitment or locating additional hardware for your QP4T-series pump? Contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 0131151220 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Cap Screw M12X20 Delivery Cover |
Compatibility & Fitment
| Name | Model |
|---|---|
| Trash Pumps | QP4TB |
| Trash Pumps | QP4TK |
| Trash Pumps | QP4TKT |
| Trash Pumps | QP4TZ |
| Trash Pumps | QP4TH |
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.
