Multiquip 14306 Crankshaft Key

The Multiquip 14306 Crankshaft Key is a genuine OEM component designed for Mayco concrete pump models including C30HD, C30HDG, C30HDZ, C30HDGA, C30HDN, C30HDNI, C30HDNI Zenith, and C30HDNI Precision. As a direct OEM replacement, part 14306 is sourced to exact Multiquip specifications, ensuring a correct, secure fit within the crankshaft assembly. Keeping this small but critical component in good condition is essential to maintaining proper alignment and reliable power transfer inside your concrete pump. DHS Equipment stocks genuine Multiquip parts so you can get back to work with confidence.

Key Features

• Genuine OEM Specification: — Manufactured to exact Multiquip tolerances, ensuring the key seats correctly in the crankshaft keyway without slop or movement.
• Direct-Fit Replacement: — Slots directly into the crankshaft keyway on compatible C30HD-series Mayco concrete pumps with no modification to the shaft or hub.
• Broad C30HD-Series Compatibility: — Fits C30HD, C30HDG, C30HDZ, C30HDGA, C30HDN, C30HDNI, C30HDNI Zenith, and C30HDNI Precision models.
• Preserves Drive Alignment: — A correctly seated crankshaft key keeps rotating components locked in proper angular position, preventing slippage that can cause uneven pump stroke and premature wear on mating parts.
• Critical Torque-Transfer Component: — Shear or displacement of this key under overload can indicate broader drivetrain stress; replacing it with a genuine OEM part restores the designed torque-transfer path.

The crankshaft key is a small, precisely dimensioned piece of hardened metal that locks a rotating component — such as a flywheel, gear, or pulley — to the crankshaft, preventing relative rotation between the two parts. It fits into matching slots (keyways) cut into both the shaft and the hub, transmitting torque and maintaining exact timing or positional alignment. When a crankshaft key wears, shears, or goes missing, the driven component can slip on the shaft, causing loss of power transfer, erratic pump operation, or accelerated damage to the crankshaft and hub surfaces. Replacing it promptly with a correctly sized OEM key restores the integrity of the drive assembly.

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.