Multiquip 01312 Cap Screw Casing Cover Set Bolt

The Multiquip 01312 Cap Screw Casing Cover Set Bolt is a genuine OEM fastener designed for QP3TS, QP3THX, QP4TK, QP4TKT, QP4TB, and QP4TH series trash pumps. As a factory-sourced component, it meets the exact material grade and thread specification required to properly secure the pump casing cover under the demanding conditions these machines face on the jobsite. Correct torque and retention at the casing cover are critical to maintaining a sealed pump housing, and this bolt is the right part to get it done. DHS Equipment supplies this genuine Multiquip part to keep your QP-series trash pump running tight and leak-free.

Key Features

• Correct Thread and Grade Specification — Manufactured to the exact material grade and thread pitch required for the casing cover fastener position, ensuring proper clamping force and seal integrity at the pump housing joint.
• Direct-Fit Replacement — Engineered as a drop-in replacement that aligns with the original bolt pattern on the casing cover, so reinstallation follows the standard service procedure without any modification.
• Broad QP-Series Compatibility — Confirmed fitment across QP3TS, QP3THX, QP4TK, QP4TKT, QP4TB, and QP4TH Multiquip trash pump models.
• Maintains Pump Housing Integrity — A worn, stripped, or missing casing cover bolt allows the housing to flex or leak under pressure, leading to pump inefficiency and potential seal failure. Replacing it promptly preserves full priming and discharge performance.
• Genuine OEM Sourcing — Supplied directly from Multiquip as an authorized OEM component, carrying the same part number 01312 used in the official parts documentation for these pump families.

The casing cover set bolt secures the outer cover of the pump casing, keeping the volute housing sealed and properly aligned around the impeller. A correctly fastened casing cover is essential for maintaining prime, preventing air ingestion, and sustaining discharge pressure — all of which directly affect how efficiently the pump moves water or slurry on site. When a bolt in this position becomes loose, corroded, or stripped, the casing can shift or leak, causing a loss of prime and reduced flow that no amount of throttle adjustment will fix.

Part Details

Compatibility & Fitment

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.