Multiquip EM492357 Grade 8 Bolt

The Multiquip EM492357 Grade 8 Bolt is a genuine OEM fastener designed for a wide range of Multiquip and Whiteman equipment, including WM45HCE mixers, LS300GK and LS300G concrete pumps, AR13H and AR13HA rollers, WBH-16 and WBH-21 power buggies, V305EH and V305EK walk-behind rollers, R2000H static rollers, and C30HD-series pumps. As a genuine OEM component, this bolt is manufactured to the same specifications as the hardware originally installed at the factory, ensuring a correct, confident fit across every compatible model. Sourced directly through authorized channels, the Multiquip EM492357 is the right choice when structural integrity and proper torque retention matter on the job.

Key Features

• High-Strength Grade 8 Rating — Hardened to Grade 8 specification for superior tensile strength and resistance to shear forces in demanding structural and mechanical connections.
• Genuine OEM Part — Manufactured to Multiquip's original design tolerances, ensuring correct thread pitch, shank diameter, and head dimensions for a drop-in replacement.
• Broad Equipment Compatibility — Fits WM45HCE mixers, LS300GK concrete pumps, AR13H and AR13HA rollers, WBH-16 and WBH-21 power buggies, V305EH, V305EK, R2000H rollers, and C30HD-series pumps.
• Fastener Integrity Under Load — Grade 8 hardness prevents bolt stretch and loosening under the vibration and mechanical stress typical of compaction, pumping, and material-handling equipment.
• Structural Safety Assurance — Using a correctly rated fastener in load-bearing and torque-critical joints prevents joint failure, component separation, and potential operator hazards.

A Grade 8 bolt is a high-strength structural fastener used to secure critical joints and assemblies throughout heavy construction equipment. The Grade 8 classification indicates the bolt has been through a heat-treatment process that significantly increases its tensile and yield strength compared to standard hardware-grade fasteners. In equipment like concrete pumps, power buggies, rollers, and mixers, these bolts hold together frame sections, drive components, and mechanical assemblies that experience constant vibration and dynamic loads. Using an undersized or lower-grade substitute can lead to bolt fatigue, loosening, or catastrophic joint failure — making it essential to replace with the correct OEM-specified fastener.

Part Details

Compatibility & Fitment

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.