The Multiquip EM492358 Screw 1/4" x 1 1/4" is a genuine OEM fastener designed for the C30HDZ concrete pump and AR13H series asphalt ride-on rollers, including the AR13HA, AR13HA/HAR, and AR13HC. As a direct factory replacement, EM492358 delivers the exact thread pitch, head type, and dimensional spec needed for a correct, secure installation — no guesswork, no mismatched hardware. Whether you are servicing a Mayco concrete pump or an AR13H-series roller, this OEM screw ensures the fastened assembly holds to the same standard as the original build.
Key Features
- Genuine OEM Fastener Spec — Manufactured to Multiquip's exact thread, length, and head geometry so the screw seats and torques correctly in the intended bore or threaded insert.
- Direct Drop-In Replacement — Matches the original 1/4" x 1 1/4" fastener precisely, eliminating the risk of cross-threading, under-torque, or hardware mismatch during reassembly.
- Broad Cross-Family Fitment — Confirmed for the C30HDZ concrete pump and AR13H, AR13HA, AR13HA/HAR, and AR13HC ride-on rollers, covering multiple Multiquip equipment lines with a single part number.
- Structural Integrity Where It Counts — A correctly specified screw maintains clamping load on covers, guards, and structural panels; an undersized or mismatched fastener can work loose under vibration, compromising the assembly.
- Critical on Vibration-Intensive Equipment — Both compaction rollers and concrete pumps generate sustained vibration and hydraulic loading; using the OEM-grade fastener helps maintain torque retention through continuous operating cycles.
A fastener like the 1/4" x 1 1/4" screw may appear straightforward, but thread form, shank length, and head style are all engineered to the specific joint it secures — whether that is a panel, guard, or component bracket on the machine. Using a screw with incorrect dimensions can result in insufficient clamping force, stripped threads, or a fastener that bottoms out before the joint is fully closed. On equipment that operates under constant vibration — such as asphalt rollers and concrete pumps — maintaining the correct hardware specification is essential to keeping assemblies secure through heavy daily use.
Part Details
| Part Number | EM492358 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Screw 1/4" x 1 1/4" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDZ |
| Rollers | AR13HA/HAR |
| Rollers | AR13HC |
| Rollers | AR13H |
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.
