The Multiquip EM514440 Bolt 5/8-11 x 2-1/2 GR5 C30H is a genuine OEM hardware component designed for the C30HD concrete pump. As an OEM-sourced part, EM514440 is manufactured to the exact grade and dimensional specification called out in the original Multiquip bill of materials, so it installs without guesswork. This bolt is confirmed to fit the C30HD, ensuring the correct thread pitch, shank length, and Grade 5 tensile rating are maintained wherever this fastener is used on the machine. Sourcing the correct OEM bolt keeps critical assemblies torqued and secured to the specification the pump was engineered around.
Key Features
- Grade 5 Tensile Strength — Rated GR5 for the clamping load and shear resistance demanded by concrete pump applications, where vibration and hydraulic stress are constant.
- Exact Thread Specification — 5/8-11 UNC thread form and 2-1/2-inch shank length match the OEM-specified fastener exactly, threading straight into existing bosses and brackets.
- Genuine OEM Part — Sourced directly from Multiquip, EM514440 carries the same material and dimensional standard as the original production fastener — no substitutions or grade compromises.
- Confirmed C30HD Fitment — Verified for the Mayco C30HD concrete pump; use part number EM514440 to confirm accuracy before ordering.
- Structural Integrity Assurance — Using an underspecified or incorrect-grade bolt on a concrete pump can lead to joint failure under load; the correct GR5 rating preserves the engineered clamping margin.
A fastener at this specification serves as a structural connector on the concrete pump, securing major components — such as hopper assemblies, frame brackets, or pump drive housings — that must remain rigidly clamped during operation. Grade 5 hardware is rated to a minimum proof load that prevents bolt stretch and joint separation under the cyclical stress a concrete pump generates. When an incorrect-grade or worn bolt is used in its place, clamping force is lost, accelerating wear on mating surfaces and creating the risk of component separation during pumping cycles.
Need help confirming fitment for your C30HD? Contact the DHS Equipment parts team with your model and serial number and we'll verify this part is the right bolt for your application.
Part Details
| Part Number | EM514440 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Bolt 5/8-11 x 2-1/2 GR5 C30H |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HD |
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.
