Multiquip 1230 Crank Pulley Bolt

The Multiquip 1230 Crank Pulley Bolt is a genuine OEM fastener designed for C30HDNI, C30HDN, and HHN34TVD series equipment. This bolt secures the crank pulley to the crankshaft and is manufactured to Multiquip's original specifications, ensuring a correct, secure fit every time. Confirmed fitment covers the C30HDNI Zenith, C30HDNI Precision, C30HDN, and C30HDNI concrete pump models, as well as the HHN34TVD and HHN31V Whiteman ride-on power trowels. When you need a direct OEM replacement, sourcing the exact part number matters — the Multiquip 1230 removes any guesswork.

Key Features

• Genuine OEM Fastener Grade — Manufactured to the original torque and thread specification required to properly retain the crank pulley under engine load.
• Direct Drop-In Replacement — Matches the original bolt profile and thread pitch, allowing straightforward installation without modification to the pulley hub or crankshaft.
• Broad Cross-Family Fitment — Compatible with C30HDNI Zenith, C30HDNI Precision, C30HDN, and C30HDNI concrete pumps, plus HHN34TVD and HHN31V ride-on power trowels.
• Pulley Security Under Sustained Load — A correctly torqued crank pulley bolt keeps belt-driven accessories running in proper alignment; a loose or failed bolt can cause pulley walk, belt slippage, or accessory drive failure.
• Critical Drive-System Safety — On both concrete pumps and ride-on trowels, loss of crank pulley retention can result in sudden accessory drive failure; using the correct OEM bolt helps maintain safe, predictable operation.

The crank pulley bolt is the primary fastener that clamps the crank pulley firmly against the nose of the crankshaft, allowing the engine to transfer rotational power to belt-driven systems such as alternators, hydraulic pumps, or auxiliary drives. If this bolt loosens or fails, the pulley can shift, causing belt misalignment, premature belt wear, or a complete loss of drive to critical machine systems. Replacing a worn or damaged bolt with the correct OEM specification part restores the clamping force needed to keep the pulley locked securely in position during operation.

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.