The Multiquip 3065581 Connecting Rod Bearing is a genuine OEM component designed for MQ-D305, D306, and MQ-D306HA diaphragm pumps. Sourced directly from Multiquip, this bearing meets the exact tolerancing and material specifications required to keep your pump running at full capacity. Verified fitment across the MQ-D305, D306, and MQ-D306HA ensures a direct, no-guesswork installation. DHS Equipment supplies this part as an authorized Multiquip OEM replacement, so you can order with confidence.
Key Features
- Genuine OEM Tolerancing — Manufactured to Multiquip's precision bearing specs, ensuring correct journal clearance and load rating for diaphragm pump crankshaft operation.
- Direct Drop-In Installation — Engineered to match the original connecting rod bore dimensions, fitting exactly as the factory component without machining or shimming.
- Confirmed Fitment — Compatible with MQ-D305, D306, and MQ-D306HA diaphragm pump models.
- Sustained Pump Efficiency — A correctly seated connecting rod bearing maintains consistent stroke geometry, preserving diaphragm movement and rated flow output. A worn bearing causes rod slop, erratic pumping action, and accelerated internal damage.
- Engine Protection — Proper bearing clearance prevents metal-to-metal contact at the crankpin, protecting the crankshaft from scoring and avoiding catastrophic engine failure in the field.
The connecting rod bearing sits between the connecting rod and the crankshaft journal, allowing the rod to rotate smoothly around the crankpin as the engine cycles. In a diaphragm pump, this reciprocating motion is what drives the diaphragm back and forth to move fluid — so bearing condition has a direct effect on pumping performance and consistency. When this bearing wears or fails, increased clearance creates knocking, loss of stroke control, and rapid deterioration of surrounding crankshaft and rod surfaces.
Part Details
| Part Number | 3065581 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Connecting Rod Bearing |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | MQ-D305 |
| MQ Diaphragm Pumps | D306 |
| MQ Diaphragm Pumps | MQ-D306HA |
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.
