Hitachi 6684693 Pump Diaphragm OEM Part

Product Details

Genuine Hitachi part.

Cross Reference Information

Part Number 6684693 replaces AP6709272.

Description

This pump diaphragm is used to replace the carburetor's seal when doing scheduled maintenance or making necessary repairs. Proper sealing of the carburetor is essential to efficient engine performance. Many performance issues, including misfiring and overheating, can be attributed to a worn pump diaphragm. Replacing the pump diaphragm when engine issues are first noticed can prolong the life of the engine. Before rebuilding or replacing the entire carburetor due to misfiring or overheating, pull the diaphragm and inspect it for wear. If there are tears or warps, replace the diaphragm. It is an inexpensive repair that may solve the problem. Before starting, empty the fuel tank into a clean vessel. Drain the carburetor and fuel lines. Take the spark plug out as a safety precaution. After the old diaphragm is removed, clean the area to remove any accumulated dirt and debris. If the area is cleaned thoroughly, the new diaphragm will not require lubricant. Install the new diaphragm and reinstall the machine parts. This genuine OEM pump diaphragm is sourced directly from the manufacturer and sold as an individual unit. It is specially designed for blowers, chain saws, drills, hedge trimmers, drills, and saws manufactured by Tanaka and Hitachi.