The Multiquip 3051913 Connecting Rod Bearing is a genuine OEM component designed for MQ-D305 and D306 diaphragm pumps. Sourced directly from Multiquip, this bearing meets the original design tolerances specified for these pump models, ensuring consistent fit and function. It is the correct replacement for MQ-D305 and D306 units requiring bearing service or rebuild work.
Key Features
- OEM-Spec Bearing Tolerancing — Manufactured to the exact dimensional and load tolerances of the original bearing, maintaining the correct clearance between the connecting rod and crankshaft journal.
- Direct-Fit Replacement — Installs into the connecting rod bore of MQ-D305 and D306 diaphragm pumps without modification, seating the same way as the factory-installed bearing.
- Confirmed Fitment — Verified for MQ-D305 and D306 series diaphragm pumps; always cross-reference your model code before ordering.
- Sustained Pump Stroke Integrity — A correctly fitted connecting rod bearing keeps the pump's reciprocating motion smooth and accurate, preserving consistent flow output and diaphragm stroke timing.
- Genuine Multiquip OEM Part — Backed by Multiquip as an authorized replacement, giving you confidence that the part number, material grade, and geometry match the original specification.
The connecting rod bearing sits between the connecting rod and the crankshaft throw inside the pump's drive mechanism. Its job is to reduce friction at this high-motion interface and allow the crankshaft to smoothly convert rotational energy into the reciprocating stroke that drives the diaphragm. When this bearing wears or fails, you may notice increased vibration, knocking from the drive housing, reduced flow output, or accelerated wear on the crankshaft journal — all signs the bearing should be inspected and replaced promptly.
Part Details
| Part Number | 3051913 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Connecting Rod Bearing |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | MQ-D305 |
| MQ Diaphragm Pumps | D306 |
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.
