Multiquip 0131151230 Casing Cap Screw M12X30

The Multiquip 0131151230 is a genuine OEM Casing Cap Screw M12X30 designed for QP4TH, QP4TZ, QP4TKT, QP4TK, and QP4TB series trash pumps. As a direct OEM replacement, this fastener is manufactured to the exact material grade, thread pitch, and dimensional tolerances required by Multiquip for secure pump casing assembly. Sourced directly through authorized channels, 0131151230 ensures a confident, specification-correct repair every time. Confirm your model code against the fitment list before ordering to make sure this is the right cap screw for your machine.

Key Features

• OEM-Grade Fastener Material — Manufactured to the exact alloy grade and tensile strength specified for pump casing duty, ensuring the joint holds under the vibration and pressure loads these trash pumps generate.
• Correct M12X30 Thread and Length — Matches the thread pitch and shank length of the original casing hardware, threading directly into existing casing bores without re-tapping or shimming.
• Broad QP4T Family Fitment — Verified for QP4TH, QP4TZ, QP4TKT, QP4TK, and QP4TB trash pump models, covering Honda, Hatz, Kubota, and Briggs & Stratton engine variants within the QP4T line.
• Casing Integrity at the Source — A properly torqued casing fastener keeps the volute sealed against internal pump pressure; a loose or damaged screw allows bypass leakage that robs flow and can cause cavitation damage to the impeller.
• Genuine OEM Part Number — Part number 0131151230 is the Multiquip OEM reference, so you can cross-check it against your parts manual before purchase with confidence.

The casing cap screw secures the two halves of the pump casing — or the casing cover to the volute body — creating the sealed chamber that allows the impeller to generate suction and push fluid through the discharge port. Without a full set of correctly torqued casing fasteners, pump pressure escapes at the joint, reducing flow output and straining the engine. A corroded, stripped, or missing cap screw is one of the most common causes of unexplained performance loss on a trash pump and is inexpensive to address when caught early.

For fitment questions or help confirming this part against your machine's serial number, contact the DHS Equipment parts team directly.

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.