Lawn & Garden Equipment Engine Carburetor Needle Valve BS-799177

Brand: Briggs & Stratton · Fits: 9 models · Reference price: $21.43

BS-799177 is a Briggs & Stratton replacement part (lawn & garden equipment engine carburetor needle valve). Our fitment data lists 9 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 9 confirmed models for this part.
ModelBrandApplianceParts on file
121Q02-0064-F1Briggs & Stratton114
122R02-0008-F1Briggs & Stratton103
112P02-0117-F1Briggs & Stratton87
12S902-0159-B1Briggs & Stratton83
121S02-0123-F1Briggs & Stratton79
110P02-0003-F1Briggs & Stratton44
110P05-0002-F1Briggs & Stratton40
110P05-0002-F4Briggs & Stratton39
121R02-0003-F1Briggs & Stratton32

Part numbers it replaces

The manufacturer lists BS-799177 as the replacement for these earlier part numbers. Substitute parts can look different from the original but serve the same function.

Other parts for model 121Q02-0064-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 $21.43. 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