The Multiquip 15270B3400 Oil Filler Cap Packing is a genuine OEM seal designed for Mayco C30HDNI and C30HDN series concrete pumps, including C30HDNI Precision and C30HDNI Zenith variants. As a factory-sourced component, it meets the exact material and dimensional specifications required to maintain a proper seal at the oil filler cap. Sourced directly through Multiquip's OEM supply chain, this packing is the correct replacement when the original seal shows wear, compression loss, or oil weeping around the filler cap. Confirm your model code against C30HDNI or C30HDN before ordering to ensure an accurate fit.
Key Features
- OEM Seal Material Grade — Manufactured to the original compression and durometer specification, ensuring consistent sealing performance at the oil filler cap opening.
- Drop-In Replacement — Seats directly into the filler cap recess on C30HDNI and C30HDN concrete pumps, including Precision and Zenith engine variants, with no trimming or modification.
- Broad C30HD Series Coverage — A single part number covers C30HDNI, C30HDN, C30HDNI Precision, and C30HDNI Zenith Mayco concrete pump models.
- Leak Prevention — A correctly seated oil filler cap packing prevents oil seepage that can contaminate the work area, mask actual oil-level loss, and lead to premature wear of internal pump components.
- Genuine Multiquip OEM Part — Supplied as an authentic Multiquip replacement, part number 15270B3400, backed by OEM quality assurance and traceability.
The oil filler cap packing is a small but critical sealing ring that sits between the oil filler cap and the engine or gearbox housing on your concrete pump. Its job is to create an airtight, oil-tight barrier that prevents lubricant from escaping around the cap during operation. When this packing hardens, cracks, or takes a set over time, it loses its ability to compress and seal properly — resulting in oil weeping, contamination around the filler neck, and inaccurate oil-level readings that can go undetected until internal damage has already occurred.
For fitment questions or to confirm this part is correct for your specific C30HDNI or C30HDN unit, contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 15270B3400 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Oil Filler Cap Packing |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDNI |
| Mayco Pumps | C30HDN |
| Mayco Pumps | C30HDNI Precision |
| Mayco Pumps | C30HDNI Zenith |
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.
