The Multiquip 3054850 Gear Case is a genuine OEM component designed for MQ-D305, D306, and MQ-D306HA diaphragm pumps. Sourced directly from Multiquip, this part meets the original design specifications for the gear drive system on these pumps. It is a direct-fit replacement for the original housing, ensuring correct alignment and engagement of the internal drive components. If your diaphragm pump is showing signs of drive failure, excessive play, or housing damage, part number 3054850 is the correct OEM solution.
Key Features
- OEM-Grade Housing Integrity — Cast and machined to original tolerances, ensuring proper gear mesh and load distribution throughout the drive assembly.
- Direct-Fit Installation — Matches the original bolt pattern, shaft clearances, and mounting geometry for a straightforward drop-in replacement.
- Confirmed Fitment — Compatible with MQ-D305, D306, and MQ-D306HA diaphragm pump models.
- Protects Drive Components — A correctly seated gear case maintains proper lubrication containment and shields internal gears from contamination, extending the life of the full drive assembly.
- Genuine Multiquip OEM Part — Supplied as a factory original component, not a generic substitute, so you know the material grade and dimensional accuracy match the original.
The gear case on a diaphragm pump encloses and supports the gear drive mechanism that converts engine or motor rotation into the reciprocating motion needed to actuate the pump diaphragm. It also serves as the sealed housing that retains lubricant around the gears and protects them from dirt, debris, and moisture on the worksite. When the gear case becomes cracked, warped, or otherwise damaged, the drive loses proper alignment, lubrication escapes, and contamination enters — leading to accelerated gear wear and eventual pump failure.
Part Details
| Part Number | 3054850 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Gear Case |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | MQ-D305 |
| MQ Diaphragm Pumps | D306 |
| MQ Diaphragm Pumps | MQ-D306HA |
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.
