Multiquip EM600020 Internal Gear - OEM Replacement Part for Plaster Mortar Mixers

The internal gear is a critical drive train component in Multiquip plaster and mortar mixers, transferring power from the clutch assembly to the paddle shaft for drum rotation. This precision-machined gear ensures reliable engagement during mixing operations and must maintain proper lubrication and alignment for optimal performance.

Designed for the EM12M Series mechanical drive mixers, this internal gear operates within the gearbox assembly that requires oil level checks every two to three months with complete drain and refill annually (capacity 1.27 quarts/1.2 liters). The gear interfaces directly with the clutch mechanism that controls paddle shaft rotation for mixing plaster or mortar batches of 3.5 to 4 bags in the 12 cubic foot drum. Common failure symptoms include unusual grinding noises during clutch engagement, difficulty engaging the mixing drum, or complete loss of paddle rotation despite engine operation.

Compatible with the following Multiquip models:

• EM12M
• EM12ME51
• EM12ME53

Genuine Multiquip OEM part, sold by an authorized dealer.