The Multiquip 501796 Drive Pinion is a genuine OEM component designed for Multiquip, Essick, Whiteman, and STOW concrete mixer models including EC-92P, EC-92S, MC-92S, MC-92P, WC-92S, WC-92P, and CMS-9. As a direct OEM replacement, part 501796 meets the exact specifications of the original factory component, ensuring a correct mesh and engagement within the mixer's gear drive assembly. This pinion is sourced directly through Multiquip's authorized parts network and sold by DHS Equipment, giving you confidence in fitment and part authenticity.
Key Features
- Genuine OEM Gear Geometry — Machined to the exact tooth count, pitch, and profile of the original drive pinion for proper gear mesh and load transfer in the mixer drum drive.
- Direct Drop-In Replacement — Engineered to install in the same mounting position as the original, with no modification to the gear housing or shaft required.
- Broad Mixer Compatibility — Fits EC-92P, EC-92S, MC-92S, MC-92P, WC-92S, WC-92P, and CMS-9 concrete mixers, covering multiple Multiquip portfolio brands in the same 9-cubic-foot class.
- Restored Drum Drive Power — A worn or chipped pinion causes irregular drum rotation, slippage, and accelerated wear on the ring gear; replacing it promptly restores smooth, consistent drum speed and mixing performance.
- Durable Drive Train Component — Built from hardened gear material suited to the continuous torque loads of concrete mixing, resisting wear under heavy aggregate batches and extended run cycles.
The drive pinion is a core element of the concrete mixer's gear reduction system, transferring rotational power from the motor or engine to the drum ring gear to turn the mixing drum. It works under constant load and is subject to progressive tooth wear, especially when the drum is regularly charged with heavy aggregate mixes. When the pinion teeth wear down or chip, the drum may rotate unevenly, slip under load, or stop turning altogether, bringing the pour to a halt. Replacing the 501796 Drive Pinion at the first sign of wear keeps the drum drive running smoothly and protects the ring gear from secondary damage.
Part Details
| Part Number | 501796 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Drive Pinion |
Compatibility & Fitment
| Name | Model |
|---|---|
| Concrete Mixers | EC-92P |
| Concrete Mixers | MC-92S |
| Concrete Mixers | MC-92P |
| Concrete Mixers | EC-92S |
| Concrete Mixers | CMS-9 |
| Concrete Mixers | WC-92S |
| Concrete Mixers | WC-92P |
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.
