Briggs & Stratton 133412-0059-01 engine Parts

To find specs for your Briggs engine model 133412-0059-01, use the engine’s identification numbers (Model, Type, and Code) stamped on the engine. Once you have those numbers, you can match them to the correct parts and configuration for your exact build.

On most Briggs lawn and garden engines, the ID is stamped into the metal (not a paper label). Check these common spots:

• On the blower housing (recoil starter shroud)
• On the valve cover area
• Near the spark plug
• Near the muffler or muffler heat shield
• On the engine shroud near the carburetor or air cleaner

Write the numbers down exactly as stamped, including dashes.

With Model, Type, and Code, you can identify the exact configuration and typical service specs, such as:

• Air filter style and service interval (example part: Briggs & statton air cleaner cartridge 494511S)
• Ignition system type and compatible coil (example part: Briggs & stratton lawn & garden equipment engine ignition coil 397358)
• Carburetor parts used (float, needle valve, gaskets)
• Recoil starter style (example part: Briggs & statton starter 497830)
• Flywheel and key style (example part: Briggs & statton key 222698S)

Briggs engines often share the same base model number but differ by Type and Code. Using the full ID prevents ordering the wrong ignition, carburetor, or starter parts and helps you tune the engine to the correct factory configuration.

Last updated: February 2026

On a Briggs engine like model 133412-0059-01, the carburetor’s “model number” is identified by the engine’s Model-Type-Code stamping, not a label on the carburetor itself. We typically find those numbers stamped or printed on the blower housing (air shroud), often near the starter or spark plug area.

Check these common locations first (wipe dirt and oil off before reading):

• Blower housing/air shroud above the cylinder head
• Near the recoil starter housing
• Around the spark plug area on the shroud
• On a valve cover area tag (less common on small engines)
• On the engine block near the muffler side (varies by build)

Once you have the Model-Type-Code, use it to match the correct carburetor and internal parts for your exact build. For carburetor service on this engine family, these parts are commonly involved:

• Briggs & statton fuel inlet 692317 (fuel inlet fitting that can leak or restrict fuel)
• Briggs & stratton lawn & garden equipment engine carburetor needle valve 398188 (controls fuel flow into the bowl)
• Briggs & stratton lawn & garden equipment engine carburetor float 398187 (maintains fuel level in the bowl)
• Lawn & garden equipment engine carburetor gasket 273113S (helps prevent air leaks at the carburetor)

Briggs engines can use different carburetor setups across the same basic engine series. Using the exact Model-Type-Code for your 133412-0059-01 helps us match the correct carburetor configuration and avoid ordering a gasket, float, or needle that does not fit.

Last updated: February 2026

For the Briggs 133412-0059-01 lawn and garden engine, the crankcase oil capacity is about 20 fl oz (0.59 L) without an oil filter, or about 23 fl oz (0.69 L) if equipped with an oil filter. Always finish by setting the level to the dipstick “FULL” mark.

Use these amounts as your fill target after draining; then confirm on the dipstick.

• Park the equipment on level ground.
• Drain oil fully, reinstall the drain plug, then add oil slowly.
• Add about 3/4 of the capacity first, then check the dipstick.
• Top off in small amounts until the oil reaches “FULL”.
• Do not overfill; overfilling can cause smoking and oil leaks.

Horsepower does not determine crankcase size. Briggs engines with the same HP rating can have very different oil capacities based on:

• Engine series and displacement
• Horizontal-shaft vs. vertical-shaft design
• Sump (crankcase) depth
• Whether an oil filter is used

If the engine suddenly won’t start after a blade strike or abrupt stop, a sheared flywheel key can affect ignition timing.

• Briggs & statton key 222698S

Using the correct oil capacity helps protect the crankshaft, connecting rod, and cylinder from accelerated wear; it also prevents foaming and oil carryover that can foul the air intake.

Last updated: February 2026

A 12.5 HP Briggs and Stratton single-cylinder lawn and garden engine is typically about 340 to 350 cc (most commonly 344 cc in many 28-series engines). Your Briggs model 133412-0059-01 is a smaller engine family, so its displacement is not in the 12.5 HP range.

Engine displacement (cc) is tied to the specific Briggs model and type numbers, not just the horsepower label on the mower.

• 133412-0059-01 is a different, smaller engine family than the common 12.5 HP 28-series engines.
• If your equipment is labeled 12.5 HP, the engine may have been swapped or the label may refer to a different engine.
• Use the Model-Type-Code stamped on the blower housing/shroud to identify the exact engine.
• Once you confirm the stamped numbers, match parts by that engine ID to avoid fit and performance issues.

These are common real-world ranges for older-style horsepower-labeled Briggs vertical-shaft engines.

CC affects airflow and fuel needs; using the wrong carburetor or ignition parts can cause hard starting, surging, flooding, or low power under load.

If you’re verifying the engine because it won’t start or runs poorly, these model-matched parts are often involved:

• Ignition coil 397358 (spark/no-spark issues)
• Air cleaner cartridge 494511S (restricted airflow, rich running)
• Carburetor needle valve 398188 (flooding or fuel starvation)

Last updated: February 2026