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Flywheel Timing Key for Briggs & Stratton Engines
Briggs Flywheel Timing Key
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Flywheel Timing Key for Briggs & Stratton Engines

Part Number: 222698S
Online Price: $2.53
Flywheel Timing Key for Briggs & Stratton Engines – Replacement for 20, 21, 28, and 31 Series
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Description

Flywheel Timing Key – Fits Briggs & Stratton Small Engines


This Flywheel Timing Key is a precision-fit replacement designed for a wide range of Briggs & Stratton small engines. It ensures proper alignment between the crankshaft and flywheel, maintaining accurate ignition timing for smooth engine performance.


Ideal for maintenance, rebuilds, or repairs, this key is essential for keeping your engine running reliably—whether you're working on a lawnmower, pressure washer, generator, or other small engine equipment.


Key Features:

  • Direct replacement for stock flywheel key
  • Maintains proper ignition timing and flywheel alignment
  • Made from high-strength steel for durability and longevity
  • Easy to install—perfect for small engine DIYers and professionals alike


Compatible with Briggs & Stratton Engine Series:

Fits hundreds of engine models, including but not limited to:

20, 21, 28, and 31 Series Engines

  • 20E300, 20G400, 21A400, 21M100, 21X300
  • 28B700, 28M700, 28R700, 28T700, 28W700
  • 31A500, 31D700, 31F700, and more

100, 120, 121, and 122 Series

  • 100600, 120200–120600, 121000–121600
  • 122000–122600, 123300–123600, 124000–124600

900, 1100, 1300, and 2100 Series

  • 91200, 92200, 110400, 111600, 133400, 134400
  • 210300–210800, 212400–213400, 215700–219900

Note: This timing key is compatible with many other Briggs engines. Always verify part compatibility using your engine model and serial number.


Common Applications:

  • Lawn mowers
  • Go-karts
  • Pressure washers
  • Generators
  • Tillers
  • Other outdoor power equipment using Briggs small engines

FAQ

Q1: What does the Flywheel Timing Key do?

A: The Flywheel Timing Key is a small but crucial part that ensures the proper alignment between the crankshaft and flywheel in small engines. It maintains the correct ignition timing for smooth engine performance.


Q2: Which engines is this timing key compatible with?

A: This timing key is designed for Briggs & Stratton small engines, including models from the 20, 21, 28, and 31 Series. It fits a wide range of engines used in mowers, generators, pressure washers, and more. Some common models include 20E300, 21A400, 28B700, 31A500, and many others. Please check your engine model number for compatibility.


Q3: How do I install the Flywheel Timing Key?

A: Installing the flywheel timing key is straightforward. Simply remove the flywheel nut and take off the flywheel. Insert the timing key into the crankshaft slot, ensuring it aligns with the flywheel slot. Reinstall the flywheel, securing it with the nut. Always follow the manufacturer’s instructions for your specific engine model.


Q4: What happens if the flywheel timing key is damaged or missing?

A: If the flywheel timing key is damaged or missing, the engine’s ignition timing will be incorrect, which can cause poor performance, misfires, or even engine damage. It’s important to replace a worn or broken key to maintain proper engine function.


Q5: Can this timing key be used for other small engine brands?

A: This timing key is specifically designed for Briggs & Stratton engines and may not be compatible with other brands. Always check your engine’s manual or consult with a professional to confirm compatibility with your specific engine model.

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