The Multiquip 501829 Drive Pinion is a genuine OEM component designed for EC-62S, EC-62P, CMS6S, MC-62S, MC-62P, WC-62S, and WC-62P series concrete and mortar mixers. Sourced directly from Multiquip, this drive pinion is an exact-match replacement that installs into the drum drive system without modification. It is confirmed compatible across the 62-class mixer lineup spanning Essick, STOW, Multiquip, and Whiteman branded units. Keeping this gear in proper working condition is essential for consistent drum rotation and reliable mixing performance on the jobsite.
Key Features
- Genuine OEM Gear Geometry — Manufactured to the original tooth profile and hardness spec, ensuring proper mesh and load transfer within the drum drive assembly.
- Direct Drop-In Replacement — Matches the original mounting configuration on 62-class mixer drum drive systems, slotting in where the factory pinion was removed.
- Broad 62-Class Mixer Compatibility — Fits EC-62S, EC-62P, CMS6S, MC-62S, MC-62P, WC-62S, and WC-62P models, covering multiple Multiquip portfolio brands in a single part number.
- Sustained Drum Drive Efficiency — A correctly seated drive pinion transfers power evenly to the ring gear, maintaining the torque needed to rotate a full drum load without slippage or stuttering.
- Wear-Resistant Construction — The pinion operates under continuous rotational load and cyclic stress; OEM material and heat-treat standards resist premature tooth wear that leads to drive chatter and drum hesitation.
The drive pinion is a small but load-bearing gear that sits at the heart of the mixer's drum drive system. It meshes with the ring gear on the drum, converting power from the engine or motor into the continuous rotation needed to mix concrete or mortar. When the pinion's teeth wear down, chip, or lose proper mesh alignment, the drum may rotate unevenly, slip under load, or stop turning altogether — interrupting the batch and potentially damaging the ring gear as well. Replacing a worn pinion promptly protects the surrounding drivetrain components and keeps the mixer producing consistent, properly blended material.
Part Details
| Part Number | 501829 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Drive Pinion |
Compatibility & Fitment
| Name | Model |
|---|---|
| Concrete Mixers | EC-62S |
| Concrete Mixers | EC-62P |
| Towable Mixers | CMS6S |
| Concrete Mixers | MC-62S |
| Concrete Mixers | MC-62P |
| Concrete Mixers | WC-62S |
| Concrete Mixers | WC-62P |
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.
