Hi,
Found this online which may be of some help.
To locate any information or parts for your engine, you will first need the engine’s Model, Type, and Code. Please use this [https://www.briggsandstratton.com/na/en_us/support/need-help/push-mower-engines.html|link] to locate these numbers
Once you have located these numbers you can find the parts list for your engine [https://www.briggsandstratton.com/na/en_us/support/manuals.html?acr=bazaarvoiceqa|here]. Choose the product your engine is mounted to and follow the directions for entering the model and type numbers you found on your engine for downloadable manuals and parts lists.
You can purchase parts online by clicking [https://shop.briggsandstratton.com/pages/parts-lookup?acr=bazaarvoiceqa|here] or you can purchase parts through a local authorized parts dealer. You can locate a dealer near you by clicking [https://www.briggsandstratton.com/na/en_us/support/dealer-locator/product-selector.html|here]