Multiquip 12303G2512 Crank Pulley

The Multiquip 12303G2512 Crank Pulley is a genuine OEM component designed for C30HDNI, C30HDNI Precision, C30HDNI Zenith, and C30HDN series Mayco concrete pumps. As a direct OEM replacement, this pulley is manufactured to the same specifications as the original part, ensuring proper belt alignment and drive system integrity. Sourced directly through authorized Multiquip distribution channels, the 12303G2512 delivers the fitment accuracy that keeps your concrete pump running at full capacity.

Key Features

• Genuine OEM Construction: — Machined to original dimensional tolerances, ensuring correct belt seating and pulley-to-crankshaft engagement on C30HDN family pumps.
• Direct-Fit Replacement: — Mounts directly to the crankshaft in place of the original pulley with no reworking of the drive system required.
• Broad C30 Series Compatibility: — Confirmed fitment across C30HDNI, C30HDNI Precision, C30HDNI Zenith, and C30HDN concrete pump models.
• Drive System Performance: — A properly functioning crank pulley maintains consistent belt tension and rotational transfer; a worn or damaged pulley causes belt slippage, vibration, and loss of pump output.
• Verified Part Number: — Order with confidence using part number 12303G2512 to match the correct pulley specification for your machine.

The crank pulley is a core component of the engine drive system on a concrete pump. Mounted directly to the crankshaft, it transfers rotational power from the engine to the belt-driven accessories and pump drive mechanism. When the crank pulley is worn, cracked, or out of balance, it causes belt misalignment, excessive vibration, and uneven power transfer — any of which can lead to accelerated belt wear or a loss of pumping output. Keeping this component in serviceable condition is essential to maintaining consistent pump operation on the job.

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.