Multiquip 503915 Pinon Accionador

The Multiquip 503915 Pinon Accionador is a genuine OEM drive pinion gear designed for Multiquip concrete mixer models MC94P/S, MC94SK, and MC94PK. As a factory-sourced component, it meets the exact tolerances and material specifications required for proper drivetrain engagement in these mixers. Sourced directly through Multiquip's OEM parts program, the 503915 ensures a direct, verified fit for the MC94 mixer series. DHS Equipment supplies this part to help keep your Multiquip mixer running at full capacity with no guesswork on compatibility.

Key Features

• Factory-Matched Gear Tolerances — Cut and hardened to OEM specification, ensuring correct tooth engagement and smooth power transfer within the mixer drivetrain.
• Direct OEM Replacement — Installs in place of the original pinion gear with no rework or adaptation needed on MC94-series mixer gearboxes.
• Confirmed MC94 Series Fitment — Verified for MC94P/S, MC94SK, and MC94PK concrete mixers; use part number 503915 to confirm compatibility before ordering.
• Sustained Drum Drive Performance — A correctly functioning drive pinion maintains consistent drum rotation speed and torque transfer; a worn pinion leads to slipping, uneven mixing, or total drum failure.
• Genuine OEM Sourcing — Supplied as an authentic Multiquip part, backed by the manufacturer's parts program for quality assurance and traceability.

The drive pinion — or pinon accionador — is a core gear component in the concrete mixer's power transmission system. It meshes with the ring gear on the drum to translate engine or motor output into drum rotation, which is what churns and mixes the concrete load. When this gear wears, chips, or loses tooth profile, drum rotation becomes inconsistent or stops entirely, compromising mix quality and potentially damaging surrounding drivetrain components. Replacing a worn pinion promptly with the correct OEM part restores proper drum speed and protects the wider gear assembly from accelerated wear.

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.