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Briggs & Stratton 133412-0059-01 engine Parts

Here are the diagrams and repair parts for Briggs & Stratton 133412-0059-01 engine, as well as links to manuals and error code tables, if available.

Briggs & Stratton 133412-0059-01 engine
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Briggs & Stratton Engine 133412-0059-01 FAQs

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.

Where to find the Model, Type, and Code numbers

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.

What specs you can look up once you have the ID

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

What you are checking What it helps you confirm Common related part type
Air intake spec Correct filter and airflow Air filter cartridge
Ignition spec Spark strength and timing Ignition coil
Fuel system spec Correct carb setup Float, needle valve, inlet fitting
Starting system spec Correct recoil assembly Recoil starter

Why it matters

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.

Where to look on the engine

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)

How to use the numbers to get the right carburetor parts

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:

Quick symptoms guide (what the carburetor numbers help prevent)

Symptom Common carb-related cause Part often involved
Won’t start, plug dry Fuel not entering carb bowl Fuel inlet fitting, needle valve
Flooding, gas smell Needle not sealing, float issue Needle valve, float
Surging or hunting Air leak at carb mounting Carburetor gasket

Why it matters

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.

Oil capacity for this engine (133412-0059-01)

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

Configuration Oil capacity Approx. quarts
No oil filter 0.59 L (20 fl oz) 0.62 qt
With oil filter 0.69 L (23 fl oz) 0.72 qt

How we recommend filling it (no guessing)

  • 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.

Why “19 HP” can be misleading

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.

Why it matters

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.

What this means for Briggs model 133412-0059-01

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.

Typical displacement you’ll see for “12.5 HP” Briggs engines

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

Engine label (common) Typical displacement (cc) Common Briggs family examples
10 to 11.5 HP 300 to 330 Smaller single-cylinder families
12 to 13 HP 340 to 350 (often 344) Many 28-series variants
14 to 15.5 HP 400 to 460 Larger single-cylinder families

Why it matters

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

Parts that commonly come up during engine identification and tune-up

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

Last updated: February 2026

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