The Multiquip SP4852 Pinion 11 Tooth SDP-2 is a genuine OEM component designed for STOW SDP-2 series diaphragm pumps. This factory-sourced pinion gear delivers the exact tooth count and profile required to mesh correctly within the pump's drive train, ensuring consistent, smooth power transfer during operation. Verified against SDP-2 applications, the part is a direct drop-in replacement that restores your pump to proper working condition without guesswork or modification.
Key Features
- Genuine OEM Gear Geometry — Manufactured to the exact 11-tooth specification required by the SDP-2 drive assembly, ensuring correct mesh engagement and eliminating premature wear caused by improperly sized substitutes.
- Direct Drive Train Fitment — Engineered to install directly into the SDP-2 gear housing with correct bore sizing and tooth spacing, so no re-machining or shimming is needed.
- Confirmed SDP-2 Compatibility — Specifically sourced for STOW SDP-2 diaphragm pump models; verify your model code before ordering to ensure an accurate match.
- Sustained Pumping Output — A correctly functioning pinion gear maintains consistent eccentric drive action, keeping diaphragm stroke rate steady and protecting against flow loss or erratic discharge pressure.
- Durability Under Continuous Load — Built to withstand the cyclical loading demands of diaphragm pump operation, resisting tooth fatigue and wear that can lead to slippage or complete drive failure.
The pinion gear is a critical component in a diaphragm pump's mechanical drive system. It meshes with a larger drive gear to transmit rotational force into the eccentric motion that strokes the diaphragm, creating the pressure differential that draws in and expels fluid. When a pinion gear becomes worn or damaged, tooth-to-tooth contact degrades, causing slippage, inconsistent flow, excessive noise, and ultimately a loss of pumping capacity. Replacing the SP4852 Pinion 11 Tooth SDP-2 at the first sign of wear keeps the drive train running in full synchronization and protects adjacent gear components from secondary damage.
Need help confirming this is the right part for your equipment? Contact DHS Equipment and our team will verify fitment against your machine before you order.
Part Details
| Part Number | SP4852 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Pinion 11 Tooth SDP-2 |
Compatibility & Fitment
| Name | Model |
|---|---|
| STOW Diaphragm Pumps | SDP-2 |
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.
