Parts for 121S120112F1 — Briggs & Stratton
We found 87 parts confirmed to fit the Briggs & Stratton 121S120112F1.
Compatibility table
Prices shown are an informational reference range only, not an offer or an Amazon price — RepairKitHub does not sell parts directly. Each part links to an Amazon search so you can compare current listings yourself.
Common failure areas on this model
The confirmed parts above group into a handful of failure areas. Here is what each points to and how to check it before you order anything.
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.
Parts in this group on 121S12-0112-F1: 796469 (Briggs & Statton Lawn & Garden Equipment Engine Crankshaft), 795431 (Briggs & Statton Lawn & Garden Equipment Engine Ring Set), 796641 (Briggs & Stratton Ring Set), 691230 (Arm), 796631 (Briggs & Statton Adjstr-Rckr), 796615 (Briggs & Statton Cup Flywheel), 796614 (Briggs & Statton Fan Flywheel), 590921 (Briggs & Statton Grade Flywheel), 793471 (Briggs & Statton Kit), 793514 (Briggs & Statton Lawn & Garden Equipment Engine Bolt), 796608 (Briggs & Statton Lawn & Garden Equipment Engine Carburetor), 796503 (Briggs & Statton Lawn & Garden Equipment Engine Dipstick), 499642 (Briggs & Statton Lawn & Garden Equipment Engine Exhaust Valve), 796623 (Briggs & Statton Lawn & Garden Equipment Engine Flywheel), 796491 (Briggs & Statton Lawn & Garden Equipment Engine Formed Fuel Line), 590949 (Briggs & Statton Lawn & Garden Equipment Engine Fuel Tank), 798327 (Briggs & Statton Lawn & Garden Equipment Engine Governor Crank), 595291 (Briggs & Statton Lawn & Garden Equipment Engine Ignition Coil), 697355 (Briggs & Statton Lawn & Garden Equipment Engine Main Jet), 793481 (Briggs & Statton Lawn & Garden Equipment Engine Nut), 590404 (Briggs & Statton Lawn & Garden Equipment Engine Piston Assembly), 796497 (Briggs & Statton Lawn & Garden Equipment Engine Recoil Starter Assembly), 796657 (Briggs & Statton Mechanical Link), 793515 (Briggs & Statton Nut), 796537 (Briggs & Statton Stud), 691343 (Briggs & Stratton Guide-Push Rod), 797521 (Briggs & Stratton Lawn and Garden Equipment Engine Timing Gear), 692602 (Briggs & Stratton Wire-Stop), BS797521 (GEAR-TIMING), 596409 (Muffler), 796702 (Briggs & Statton Brkt-Stpswch), 796492 (Briggs & Statton Lawn & Garden Equipment Engine Air Filter Base), 796470 (Briggs & Statton Lawn & Garden Equipment Engine Connecting Rod), 798947 (Briggs & Statton Lawn & Garden Equipment Engine Cylinder), 796650 (Briggs & Statton Lawn & Garden Equipment Engine Governor And Oil Slinger), 793479 (Briggs & Statton Lawn & Garden Equipment Engine Stud Bolt), 796481 (Briggs & Statton Push Rod).
Storage, trim and cosmetic hardware
Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.
Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.
Parts in this group on 121S12-0112-F1: 690349 (Briggs & Statton Lawn & Garden Equipment Engine Shoulder Screw), 691304 (Briggs & Statton Lawn & Garden Equipment Engine Valve Spring), 796476 (Briggs & Statton Breather Cover), 694039 (Briggs & Statton Lawn & Garden Equipment Engine Camshaft), 796502 (Briggs & Statton Lawn & Garden Equipment Engine Dipstick Tube), 793604 (Briggs & Statton Lawn & Garden Equipment Engine Governor Spring), 793453 (Briggs & Statton Lawn & Garden Equipment Engine Screw), 793454 (Briggs & Statton Lawn & Garden Equipment Engine Screw), 793480 (Briggs & Statton Lawn & Garden Equipment Engine Screw), 796496 (Briggs & Statton Lawn & Garden Equipment Engine Screw), 796482 (Briggs & Statton Lawn & Garden Equipment Engine Throttle Control Bracket), 691300 (Briggs & Stratton Cap-Valve), 796493 (Briggs & Statton Lawn & Garden Equipment Engine Air Cleaner Cover), 793451 (Briggs & Statton Lawn & Garden Equipment Engine Screw), 793458 (Briggs & Statton Lawn & Garden Equipment Engine Screw), 794451 (Briggs & Statton Lawn & Garden Equipment Engine Screw), 799277 (Briggs & Statton Lawn & Garden Equipment Engine Screw).
Door and drum seals
Symptom: A door or drum seal that has lost its grip, letting water or conditioned air escape past it.
Check: Inspect the seal for tears, flattening, or gaps, and check it against your model's part number before ordering.
Parts in this group on 121S12-0112-F1: 796473 (Briggs & Statton Cylinder Gasket), 796480 (Briggs & Stratton Gasket-Rocker Cover), 796475 (Briggs & Statton Lawn & Garden Equipment Engine Cylinder Head Gasket), 592173 (Briggs & Statton Lawn & Garden Equipment Engine Gasket Set), 592174 (Briggs & Statton Lawn & Garden Equipment Engine Gasket Set).
Heat control (thermostats, fuses, heating element)
Symptom: The appliance runs but heats or cools inconsistently, or shuts off partway through a cycle.
Check: With the appliance unplugged, check continuity across the part with a multimeter -- no continuity means it has failed.
Parts in this group on 121S12-0112-F1: 796486 (Briggs & Statton Lawn & Garden Equipment Engine Choke Thermostat).
Before you buy
Match 121S120112F1 exactly against the model and serial plate on the appliance itself before ordering anything — a single mismatched character can point to a different production run with different parts. Then check the part number printed or stamped on the part you are replacing against the part numbers in the table above; the printed number is the most reliable way to confirm fitment when a model has gone through multiple production runs. RepairKitHub does not sell parts directly — every part link above routes to an Amazon search for that part number so you can compare current listings and sellers yourself.
How to confirm this is your model
Check inside a door opening, on a back or side panel, or behind a removable panel or drawer for a label printed with the model and serial number. Match every character exactly, including letters and dashes at the end — appliance model numbers often have similar prefixes but different suffixes for different production runs.
Still not sure?
Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.