The Multiquip EM135 Bolt 1-1/4-12X6 is a genuine OEM fastener designed for the C30HD series concrete pumps, including the C30HD, C30HDNI, C30HDNI Precision, C30HDNI Zenith, C30HDN, C30HDG, C30HDGA, and C30HDZ models. As a direct OEM replacement, this bolt meets the exact dimensional and material standards specified for these cycloidal-drive Mayco concrete pumps, ensuring a correct fit within the assembly it secures. Sourced directly through Multiquip's authorized parts network, the EM135 is the right choice when you need confidence that the fastener matches the original specification. DHS Equipment stocks this part to keep your concrete pump back in service without the guesswork of cross-referencing aftermarket alternatives.
Key Features
- Genuine OEM Fastener Grade — Manufactured to the exact thread pitch and length spec (1-1/4-12X6) required for structural integrity in C30HD series pump assemblies.
- Direct-Fit Replacement — Matches the original bolt position and thread engagement, installing without modification into the pump's mounting or housing interface.
- Broad C30HD Series Coverage — Compatible with C30HD, C30HDNI, C30HDNI Precision, C30HDNI Zenith, C30HDN, C30HDG, C30HDGA, and C30HDZ concrete pump models.
- Correct Clamping Load — A properly torqued OEM-spec bolt maintains the designed clamping force across pump components, preventing joint movement and premature wear of mating surfaces.
- Structural Safety Compliance — On concrete pump applications, fastener integrity directly affects operator safety and pump stability; using an OEM-rated bolt ensures the connection performs as engineered under load.
A bolt of this specification serves as a primary structural fastener within the concrete pump assembly, holding critical components in fixed alignment under the continuous vibration and hydraulic forces generated during pumping operations. When a fastener of incorrect grade, thread pitch, or length is substituted, the joint can work loose over time, leading to misalignment, accelerated wear on adjacent components, or outright mechanical failure. Replacing a worn or damaged bolt with the correct Multiquip EM135 restores the designed clamping relationship and keeps the pump operating safely within its engineered tolerances.
Part Details
| Part Number | EM135 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Bolt 1-1/4-12X6 |
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.
