Multiquip 213800090 Bearing Plunger MQD3H - OEM Replacement Part

The bearing plunger is a critical wear component in diaphragm water pumps, supporting the reciprocating motion that drives the pumping action. This precision-machined part maintains proper alignment and reduces friction between the crankshaft and diaphragm assembly, ensuring consistent pump performance and preventing premature seal failure.

As a high-wear item subjected to constant reciprocating motion and pressure, the bearing plunger requires periodic inspection and replacement to maintain optimal pump efficiency. Signs of a failing bearing plunger include excessive vibration, reduced pump output, unusual noise during operation, and premature diaphragm wear. Regular replacement of this component during scheduled maintenance intervals helps prevent costly downtime and extends the service life of your pump.

This bearing plunger is engineered to exact Multiquip specifications for reliable performance in demanding applications including construction dewatering, rental equipment, and industrial fluid transfer.

Compatible with the following Multiquip models:

• MQD2H
• MQD2HA

Genuine Multiquip OEM part, sold by an authorized dealer.