Multiquip 3054858 Gear Case Gasket

The Multiquip 3054858 Gear Case Gasket is a genuine OEM component designed for MQ diaphragm pump models including the D306, MQ-D306HA, and MQ-D305. Sourced directly from Multiquip, this gasket delivers the exact material grade and compression profile required to maintain a proper seal at the gear case interface. Confirm part number 3054858 against your serial plate before ordering to ensure correct fitment for your specific pump configuration.

Key Features

• Genuine OEM Sealing Material — Manufactured to Multiquip's original compression and material specifications, ensuring a consistent, leak-free seal at the gear case mating surface.
• Direct Drop-In Replacement — Matches the original gasket profile and bolt-pattern layout, seating correctly against the gear case without trimming or modification.
• Confirmed Fitment — Compatible with Multiquip D306, MQ-D306HA, and MQ-D305 diaphragm pumps; verify part number 3054858 against your machine's parts manual.
• Protects Gear Case Integrity — A properly seated gear case gasket prevents oil or lubricant migration and keeps external contaminants out of the drive mechanism, preserving the pump's operating efficiency.
• Critical Fluid System Compliance — In pump applications, a compromised gear case gasket can result in lubricant loss and downstream seal failure; using the correct OEM gasket mitigates this risk.

The gear case gasket forms a compression seal between the gear case housing and its mating cover or body on MQ diaphragm pumps. Its primary role is to prevent lubricant from escaping the gear cavity while blocking dirt, water, and debris from entering the drive components. When this gasket deteriorates, hardens, or is damaged during service, it can allow fluid leaks that accelerate gear wear and ultimately lead to pump failure — making timely replacement with the correct part essential to keeping the drive system properly protected.

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.