Briggs & Stratton Lawn & Garden Equipment Engine Flywheel 590421

Brand: Briggs & Stratton · Fits: 14 models · Reference price: $316.10

590421 is a Briggs & Stratton replacement part (briggs & stratton lawn & garden equipment engine flywheel). Our fitment data lists 14 models that use it.

When to replace this part

General hardware and mounting parts

Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.

Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.

Models that use this part

All 14 confirmed models for this part.
ModelBrandApplianceParts on file
121S02-0022-F1Briggs & Stratton38
121S02-2025-F1Briggs & Stratton27
12S905-2732-B1Briggs & Stratton15
12S905-0732-B1Briggs & Stratton14
917351350Craftsman27
917351340Craftsman20
91763205Craftsman15
91763207Craftsman13
590421Tractor Accessories12
917351240Craftsman12
917590421Craftsman12
91763204Craftsman12
91763201Craftsman9
917351250Craftsman8

Other parts for model 121S02-0022-F1

If you are repairing that appliance, these are the most model-specific parts on file for the same model.

Reference price and where to compare

The reference price on file for this part is $316.10. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

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Before you order

Model lookup tool