These numbers range from 01 through 31 and correspond with the day of the month.
Copy the third and fourth numerals in the last section of the code.
0 - Plain Bearing/DU Non-Flange Mount1 - Plain Bearing Flange Mounting2 - Sleeve Bearing Flange Mounting Splash Lube 3 - Ball Bearing Flange Mouting Splash Lube4 - Ball Bearing Flange Mounting Pressure Lubrication on Horizontal Shaft 5 - Plain Bearing Gear Reduction (6 to 1) CW Rotation Flange Mounting6 - Plain Bearing Gear Reduction (6 to 1) CCW Rotation 7 - Plain Bearing Pressure Lubrication on Vertical Shaft8 - Plain Bearing Auxiliary Drive (PTO) Perpendicular to Crankshaft 9 - Plain Bearing Auxiliary Drive Parallel to Crankshaft0 - Without Starter1 - Rope Starter2 - Rewind Starter3 - Electric Starter Only 110V Gear Drive 4 - Electric Starter/110V Gear Drive with Alternator5 - Electric Starter Only 12V Gear Drive6 - Alternator Only 7 - Electric Starter 12V Gear Drive with Alternator8 - Vertical Pull Starter or Side Pull Starter 9 - Mechanical Starter A - Electric Starter/12V Gear Drive with Alternator & Inverter TYPE:1234-01 The type number identifies the engine mechanical parts, color of paint, decals, governed speed and Original Equipment Manufacturer.
The code number identifies the assembly date of the engine.
If you’re looking for engine model numbers, type or code for any concerns, your best source of information would be a Briggs & Stratton Dealer.
Unfortunately, the process for determining the manufacture date for older engines is not the same since the tracking system with the Code Number was not implemented until 1965.
However, on certain overhead valve powered generators, the equipment manufacturer installs a decorative chrome rocker cover OVER our cover.