The Multiquip EM903162 Bearing Cone is a genuine OEM component designed for C30HD, C30HDNI, C30HDG, C30HDZ, C30HDGA, and C30HDN series Mayco concrete pumps. As a direct Multiquip OEM part, it is manufactured to the same specifications as the original, ensuring a correct, trouble-free installation in your pump drivetrain. This bearing cone is the right choice when you need to restore proper load-bearing function and keep your concrete pump running at full capacity. Verify your model code against the fitment list to confirm compatibility before ordering.
Key Features
- Genuine OEM Precision Tolerancing — Manufactured to exact dimensional standards for this bearing position, ensuring correct load distribution and smooth rotation in the pump drivetrain.
- Drop-In Drivetrain Compatibility — Engineered to seat correctly in the original bearing housing without machining or modification, streamlining the replacement process.
- Broad C30 Series Fitment — Confirmed for C30HD, C30HDNI, C30HDG, C30HDZ, C30HDGA, C30HDN, and C30HDNI Precision and Zenith variants, covering the full Mayco C30 concrete pump family.
- Sustained Pump Output — A correctly seated bearing cone maintains shaft alignment under the cycloidal drive loads of a concrete pump, preserving consistent output pressure and flow.
- Drivetrain Integrity Under Load — Worn or failed bearing cones allow shaft play that accelerates wear across surrounding components; replacing with a genuine OEM cone stops that damage cycle early.
A bearing cone is the inner, tapered ring of a tapered roller bearing assembly, working in tandem with a bearing cup to handle both radial and axial (thrust) loads on a rotating shaft. In a concrete pump, the drivetrain experiences significant combined loads during every pumping cycle, making the bearing cone a critical component for maintaining shaft alignment and smooth power transfer. When a bearing cone wears, develops pitting, or loses its taper geometry, the result is increased vibration, accelerated wear on adjacent components, and ultimately drivetrain failure — making timely replacement essential to continued pump operation.
For fitment questions or ordering assistance, contact the DHS Equipment team directly.
Part Details
| Part Number | EM903162 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Bearing Cone |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HD |
| Mayco Pumps | C30HDNI |
| Mayco Pumps | C30HDNI Precision |
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI Zenith |
| Mayco Pumps | C30HDG |
| Mayco Pumps | C30HDZ |
| Mayco Pumps | C30HDGA |
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.
