The Multiquip 2024854 14T Pinion (3/4" Bore) is a genuine OEM component designed for MQ and STOW diaphragm pump models including MQ-D206H, MQ-D306HA, MQ-D305, D306, SDP-2, SDP-3, and CA90749. As a direct OEM replacement, this pinion gear is manufactured to the exact tooth count and bore specification required by these pump families, ensuring a proper mesh with the mating gear in the drive train. Sourced directly through Multiquip's authorized parts network, the part is the correct-specification part to restore your diaphragm pump to full operating condition. DHS Equipment stocks this part to help you keep your pump running without unnecessary delays.
Key Features
- Exact Tooth Count and Bore Spec — 14-tooth profile with a 3/4" bore matches the original drive gear geometry for correct mesh and load transfer in MQ and STOW diaphragm pump gearboxes.
- Genuine OEM Construction — Manufactured to Multiquip's original material and hardness standards, delivering the same wear resistance and load capacity as the part that came in your pump.
- Broad Diaphragm Pump Fitment — Confirmed fit for MQ-D206H, MQ-D306HA, MQ-D305, D306, SDP-2, SDP-3, and CA90749 diaphragm pump models.
- Direct Drop-In Replacement — Installs onto the existing shaft with a 3/4" bore, accepting the same key or set-screw arrangement as the original component.
- Restores Full Pumping Output — A worn or damaged pinion causes irregular diaphragm stroke, reduced flow rate, and accelerated wear on the driven gear; replacing it with the correct OEM part restores consistent, rated pump performance.
The pinion gear in a diaphragm pump is a small-diameter drive gear that meshes with a larger driven gear to transfer rotational power from the engine or motor to the pump's eccentric drive mechanism. That eccentric drive is what converts rotation into the back-and-forth motion that actuates the diaphragm and moves fluid. When the pinion's teeth wear, chip, or the bore becomes loose on the shaft, the drive loses efficiency — resulting in a weak or inconsistent stroke, reduced discharge volume, and increased stress on surrounding drivetrain components. Replacing the 2024854 14T Pinion (3/4" Bore) with a genuine OEM part restores the correct gear engagement and protects the rest of the pump's drive assembly.
Part Details
| Part Number | 2024854 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | 14T Pinion (3/4" Bore) |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | MQ-D206H |
| MQ Diaphragm Pumps | MQ-D306HA |
| STOW Diaphragm Pumps | SDP-2 |
| STOW Diaphragm Pumps | CA90749 |
| MQ Diaphragm Pumps | MQ-D305 |
| MQ Diaphragm Pumps | D306 |
| STOW Diaphragm Pumps | SDP-3 |
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.
