The Multiquip W166302 Ball Bearing SDP-2 is a genuine OEM component designed for STOW SDP-2 diaphragm pumps. As a direct OEM replacement, W166302 is sourced to meet the original design specifications for this pump family, ensuring the bearing seats and operates exactly as intended. If your SDP-2 diaphragm pump is showing signs of bearing wear — unusual noise, heat, or shaft play — this is the correct service part to restore it to proper operating condition.
Key Features
- Genuine OEM Grade: — Manufactured to the original bearing tolerances required by the SDP-2 diaphragm pump drivetrain, delivering the load rating and dimensional accuracy the pump depends on.
- Direct-Fit Replacement: — Engineered to drop into the existing bearing housing on SDP-2 models without machining or modification to the mounting interface.
- Confirmed SDP-2 Fitment: — Specifically verified for STOW SDP-2 diaphragm pumps; match your model before ordering to ensure correct application.
- Smooth Shaft Rotation: — A correctly functioning ball bearing keeps the pump shaft centered and spinning freely, maintaining consistent flow output and protecting surrounding seals and components from uneven wear.
- Prevents Progressive Drivetrain Damage: — A worn or failed bearing allows shaft deflection that can accelerate seal failure and damage the pump housing — replacing it at first sign of wear limits the scope of repair.
The ball bearing in a diaphragm pump supports the rotating shaft that drives the diaphragm mechanism, keeping it aligned and allowing it to spin with minimal friction under load. When this bearing wears, the shaft loses its support, creating vibration and misalignment that places stress on the diaphragm, seals, and pump casing. Left unaddressed, a failed bearing typically leads to fluid leaks, loss of prime, and broader mechanical damage throughout the pump assembly.
Need help confirming this is the right part for your equipment? Contact the DHS Equipment team — we're here to help you find the correct replacement part for your STOW SDP-2 diaphragm pump.
Part Details
| Part Number | W166302 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Ball Bearing 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.
