The Multiquip SP4864 Connecting Rod Bearing is a genuine OEM component designed for STOW diaphragm pump models SDP-2, CA90749, and SDP-3. As an original equipment manufacturer part, it is manufactured to the exact specifications of the factory-installed bearing, ensuring a direct, like-for-like replacement. This bearing is sourced directly through Multiquip's authorized parts network and sold by DHS Equipment to ensure you receive the correct part for your machine. Confirm your model code against SDP-2, CA90749, or SDP-3 before ordering to ensure fitment accuracy.
Key Features
- Genuine OEM Precision Tolerancing — Manufactured to exact dimensional specs for the connecting rod journal, maintaining correct clearance and load distribution critical in a diaphragm pump's reciprocating assembly.
- Drop-In Replacement for STOW Diaphragm Pumps — Engineered to install directly onto the connecting rod without machining or modification, fitting the existing rod and crankshaft geometry of these pump models.
- Confirmed Fitment for SDP-2, CA90749, and SDP-3 — Verified compatible with STOW diaphragm pump models SDP-2, CA90749, and SDP-3 — verify your model code before purchasing.
- Sustained Pumping Consistency — A correctly sized connecting rod bearing keeps the piston stroke smooth and repeatable, sustaining the diaphragm's consistent displacement cycle and stable flow output.
- Authorized Multiquip Part — Sold through DHS Equipment as an authorized Multiquip parts distributor, so you receive a traceable, genuine component backed by the manufacturer.
The connecting rod bearing sits between the connecting rod and the crankshaft journal, allowing the rod to rotate freely around the crank pin as the crankshaft turns. In a diaphragm pump, this reciprocating motion is what drives the diaphragm back and forth to create the pumping action that moves fluid. When this bearing wears or fails, increased play in the connecting rod causes erratic stroke, accelerated wear on surrounding components, and a noticeable drop in flow consistency — making timely replacement essential to keeping the pump running at full capacity.
Part Details
| Part Number | SP4864 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Connecting Rod Bearing |
Compatibility & Fitment
| Name | Model |
|---|---|
| STOW Diaphragm Pumps | SDP-2 |
| STOW Diaphragm Pumps | CA90749 |
| 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.
