Multiquip EM451 Gasket

The Multiquip EM451 Gasket is a genuine OEM gasket designed for a wide range of Multiquip equipment, including ST4 and ST6 series submersible pumps, PRX hybrid ride-on power floats, STX and HTX hydrostatic ride-on trowels, STXDF and STXD6i dual-fuel trowels, LD and MD series ride-on trowels, HHN and HTN mechanical ride-on trowels, JWN series trowels, and WRS ride-on roller screeds. As a genuine OEM component, the EM451 is manufactured to Multiquip's exact material and dimensional specifications, delivering the proper seal characteristics required for correct machine operation. Fitment covers an extensive lineup including ST41230, ST41460, ST61230, ST61460, HTX44Y4, HTX44Y5, HTX44K5, STX55Y6, STX55J6, MD80, LD6, LD60, HHN34TVD, HHN31V, HTN28K, HTN27K, WRS5200, WRSPUDF, and WRS5200DFPU, among others. Sourced directly through authorized Multiquip distribution channels, this part is backed by the confidence of genuine OEM supply.

Key Features

• Genuine OEM Sealing Material — Manufactured to Multiquip's exact compound and thickness specifications, ensuring the gasket compresses and seals correctly under operating conditions specific to each host machine.
• Drop-In Replacement — Dimensionally identical to the original, allowing direct installation without reworking mating surfaces or fastener patterns.
• Broad Multiquip Fitment — Compatible with ST4 and ST6 submersible pump series, PRX power floats, STX, HTX, LD, MD, HHN, HTN, and JWN ride-on trowel families, and WRS roller screed models.
• Leak Prevention — A correctly seated gasket maintains fluid containment and pressure integrity; a deteriorated or improperly specified gasket leads to fluid loss, contamination ingress, and accelerated wear on surrounding components.
• Fluid System Safety — On submersible pumps and hydraulic trowel systems, a sound gasket seal is essential to preventing uncontrolled fluid leakage that could create hazardous operating conditions.

A gasket is a mechanical seal that fills the interface between two mating surfaces, preventing fluids or gases from escaping the joint under pressure or temperature cycling. On submersible pumps, gaskets seal pump housings and ports to maintain hydraulic integrity and protect internal components from contamination. On ride-on trowels and roller screeds, gaskets appear throughout engine, hydraulic, and drivetrain assemblies where sealed joints are critical to sustained performance. When a gasket degrades, cracks, or is compromised, the resulting leak can cause fluid loss, overheating, or internal damage that affects the entire machine — making timely replacement with the correct OEM part essential.

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.