A-B1691604-AI BALL-CLUTCH model-191702-5672-99 550G -- serial number 770863

550G -- serial number 770863 and above

The gasket seals the lower link (lower 3-point hitch) pin support plate where it meets the rear axle housing

SCZ61V-34CV-EFI

Small frame ISM NR: SR150

A-B1691604-AI BALL-CLUTCH model-191702-5672-99 550G -- serial number 770863One New Aftermarket Replacement Clutch Ball Fits Briggs and Stratton Small Engines This aftermarket replacement clutch ball (part number 691604) is a small but critical internal component used in the clutch assembly of Fits Briggs and Stratton (B&S) small engines. The clutch ball seats within the clutch mechanism and helps transfer rotational force smoothly during engagement and disengagement. Worn or damaged clutch balls can cause slipping, rough