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Here's the info from the Briggs & Stratton website, the obvious info source... Example - To identify Model 303447: 30 - 30 Cubic Inch 3 - Design Series 3 4 - Horizontal Crankshaft 4 Ball Bearing Flange Mounting Pressure Lubrication 7 - Electric Starter 12 Volt Gear Drive With Alternator TYPE 1234-01, The type number identifies the engines mechanical parts, color of paint, decals, governed speed, and Original Equipment Manufacturer. The code number identifies the assembly date of the engine. In some instances it is necessary to know the code number as well as the model and type number when performing adjustments, repairs or ordering replacement parts for an engine. Here is how it works: CODE 01061201, The code is the manufacturing date and is read as follows: YEAR 01
MONTH 06
DAY 12
ASSEMBLY LINE AND MANUFACTURING PLANT 01
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