Multiquip 335412100 Idler Pinion Shaft - OEM Replacement Part for Diaphragm Water Pumps

The idler pinion shaft is a critical drive train component in Multiquip diaphragm pumps, transferring power from the engine to the pump mechanism that moves the diaphragm. This precision-machined shaft ensures proper gear engagement and timing within the pump's internal drive assembly, directly affecting pumping performance and reliability.

Designed for Multiquip's MQD2H and MQD3H series diaphragm pumps, this shaft works in conjunction with the pump's gear assembly to convert the Honda GX120 engine's rotational power into the reciprocating motion needed for diaphragm operation. These pumps deliver up to 50-90 gallons per minute with a maximum suction lift of 26 feet and can handle solids up to 1.5 inches in diameter. Shaft wear or damage can result in decreased pumping efficiency, unusual noise, vibration, or complete pump failure.

Compatible with the following Multiquip models:

• MQD2H Diaphragm Pump
• MQD2HA Diaphragm Pump
• MQD3H Diaphragm Pump
• MQD3HA Diaphragm Pump

Genuine Multiquip OEM part, sold by an authorized dealer.