[quote=AVB]Hmmm miss a digit 12H802-3123-B1. And Gadge got it right on the repair manual 270962 [/quote
If you double check the engine number, you will find that AVB has it right, and the manual you want can be found on the Briggs and Stratton website below: -
http://www.briggsandstratton.com/us/en/support/manuals/results?NTT=12H802-3123*
Direct link to the Illustrated Parts Manual for the 12H800 series engine Types 0652 through 6699, where you can locate the specific part number is:-
http://bsintek.basco.com/BriggsDocumentDisplay/18hvCCXHnfBhU7y.pdf
