Keep engines aligned with this genuine OEM flywheel key, part number 610951, designed for select Craftsman, Tecumseh, or Toro Lawn Mower, Small Engine, or Snowblower.
Grid is 1 inch square
  Flywheel Key 610951
Manufacturer Part

Flywheel Key 610951

Genuine OEM Part # 610951RC Item # 1604703
Manufacturer Part
Keep engines aligned with this genuine OEM flywheel key, part number 610951, designed for select Craftsman, Tecumseh, or Toro Lawn Mower, Small Engine, or Snowblower.
Grid is 1 inch square
  Flywheel Key 610951
$1.93
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Keep engines aligned with this genuine OEM flywheel key, part number 610951, designed for select Craftsman, Tecumseh, or Toro Lawn Mower, Small Engine, or Snowblower.
Loading stock status
$1.93
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This part 610951 is compatible with:

Product Type:
Lawn Mower, Small Engine, Snowblower
Brands:
Craftsman, Toro, Tecumseh

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Flywheel Key Customer Reviews

Common Problems Fixed by the Flywheel Key

Based on customer reports and repair data, this part commonly fixes these issues:

About the Flywheel Key

The flywheel key might have sheared in half. The flywheel key is a small metal piece which fits into the crankshaft and engages with the flywheel. If the snowblower engine stops suddenly due to hitting a hard object, the flywheel key breaks in half to prevent damage to the engine. To determine if the flywheel key is broken, remove the flywheel from the engine and inspect the flywheel key. If the flywheel key is broken, replace it.