How to find serial number location for Briggs & Stratton Push Mower Engines

Finding the model number and serial number on your Briggs & Stratton push mower engine is essential if you want to order replacement parts, download the correct owner’s manual, or get accurate maintenance support. The engine model and serial number help pinpoint the exact specifications your mower needs, saving time and preventing errors when buying parts or troubleshooting issues.

Why Knowing Your Engine Number Matters

Briggs & Stratton engine model and serial numbers are unique identifiers used by dealers to find:

  • Correct replacement parts

  • Compatible tune-up kits

  • Manuals and maintenance instructions

  • Warranty and service details

Without the correct engine number, ordering parts or manuals can lead to mistakes and delays.

Step-by-Step Guide to Locating the Serial & Model Number

Most Briggs & Stratton push mower engines display the model and serial number in one of three primary locations on the engine housing. These are usually stamped directly into the metal or on a metal plate.

1. Above the Spark Plug

Look on the front of the engine directly above the spark plug — many models have the number stamped here on the engine block where it is easy to read once dirt or grass buildup is removed.

2. Between the OHV Symbol & Air Filter

On engines with an Overhead Valve (OHV) design, the engine number may be stamped between the OHV symbol and the air filter housing. This area can sometimes be hidden under a decorative cover or shroud, so a flashlight and light cleaning may help.

3. Above the Muffler

Another common location is on the sheet metal above the engine muffler — either on the right or left side of the deck. This location is common on slightly larger push mower engines.

? Tip: Some engines have a removable decorative cover or shroud. If you don’t immediately see stamped numbers, gently remove this cover (if possible) to check underneath.

What the Numbers Look Like

Your Briggs & Stratton engine number usually consists of:

  • Model Number – identifies the exact engine design

  • Engine Type Number – details mechanical parts and configurations

  • Code or Serial Number – shows production date and factory details

Often these numbers are grouped like: XXXXX — YYYYY — ZZZZZZ. The model number is critical when searching for parts or manuals.

Common Tools That May Help

  • Flashlight — to see stamped numbers in shadowed areas

  • Screwdriver or socket — for removing small covers, if needed

  • Soft brush — to remove grass clippings or grime obscuring numbers

After Finding Your Engine Model & Serial Number

Once you’ve located the engine model and serial number:

  1. Enter that number on the Briggs & Stratton parts lookup page

  2. Download operator manuals and illustrated parts lists

  3. Confirm part compatibility before ordering

  4. Use it for warranty verification or servicing

This ensures you get exact matches for parts and accessories, without guesswork.