Multiquip EX130D51081 Engine 3/4 Shaft 4.3HP EX13D/QP 204E

The Multiquip EX130D51081 is a genuine OEM Engine 3/4 Shaft 4.3HP EX13D/QP 204E designed for the QP-204 series pump. As a direct Multiquip OEM component, it is built to the same specifications as the original shaft installed at the factory, ensuring a correct mechanical interface with the pump drive assembly. This part is confirmed to fit QP-204 equipment, making it the dependable choice when restoring full pump performance. Order from DHS Equipment with confidence knowing you are getting an authentic Multiquip replacement.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's original shaft specifications, delivering the correct diameter, length, and keyway geometry for a secure drive connection.
• Direct-Fit Replacement for QP-204 — Engineered to drop into the QP-204 pump drive without modification, aligning precisely with the engine-to-pump coupling interface.
• Rated for the 4.3HP EX13D Power Plant — Matched specifically to the EX13D engine output, ensuring the shaft handles the torque demands of this pump application without stress or slippage.
• Restores Full Pump Drive Integrity — A worn or damaged output shaft causes loss of power transfer to the pump impeller, resulting in reduced flow or complete pump failure; this replacement returns the drivetrain to proper operating condition.
• Verified Multiquip OEM Part — Supplied under part number EX130D51081, sourced directly through authorized Multiquip distribution channels for assured authenticity.

The engine output shaft is the mechanical link between the power plant and the pump's rotating assembly. It transfers rotational force from the engine crankshaft to the pump impeller, and the 3/4-inch diameter specification ensures a tight, properly torqued fit within the pump coupling. When this shaft becomes worn, bent, or develops keyway damage, the pump loses its ability to move fluid efficiently — and in severe cases, the drive connection can fail entirely, taking the pump out of service. Replacing it with the correct OEM shaft restores the original drive geometry and keeps the QP-204 operating at its rated capacity.

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.