Briggs and Stratton Valve Retainer part# 691939 keeps the valve spring in place. This retainer also allows the valve to rotate keep the sealing surface and valve to wear equally resulting in longer valve life and efficiency. Following is a list of some of the models that use this retainer; 192400, 194700, 195700, 196400, 196700, 197400, 197700, 198700, 19E400, 19F400, 19G400, 19K400, 243400, 250400, 256400, 257400, 283700, 284700, 286700, 289700, 28B700, 28D700, 28M700, 28R700, 28T700, 28V700, 326400, 327400, 32K400, 422400, 42E700, 460700, 461700, 463700, 422700, 42A700, 42B700, and 42D700. There may be other models that use this part that we do not have listed here. All Briggs and Stratton parts are type number and sometimes code number specific. Please refer to a parts breakdown for your specific model, type, and code numbers to assure that this part will work on your motor. Sorry, we only have one in stock at this time.
