Parts for 40N8770039G1 — Briggs & Stratton

We found 25 parts confirmed to fit the Briggs & Stratton 40N8770039G1.

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 40N877-0039-G1: 594973 (Briggs & Statton Lawn & Garden Equipment Engine Oil Sump), 592599 (Briggs & Statton Lawn & Garden Equipment Engine Starter Motor), 699810 (Briggs & Statton Lawn & Garden Equipment Engine Welch Plug), 595801 (Briggs & Statton Pin, Speed S), 596034 (Briggs & Statton Elbow-Intake), 596039 (Briggs & Statton Lawn & Garden Equipment Engine Fuel Shut-Off Solenoid), 594974 (Briggs & Statton Lawn & Garden Equipment Engine Oil Sump), 594211 (Briggs & Statton Shaft Kit), 592831 (Briggs & Stratton Lawn & Garden Equipment Engine Alternator), 594209 (Briggs & Stratton Seal-O Ring), 594206 (Briggs & Statton Lawn & Garden Equipment Engine Exhaust Manifold), 593650 (Briggs & Statton Piston Pin), 845125 (Briggs & Stratton Lawn & Garden Equipment Engine Fuel Filter), 491055S (Briggs & Statton Lawn & Garden Equipment Engine Spark Plug), 593240 (Briggs & Stratton Lawn & Garden Equipment Engine Air Filter), 66538S (Briggs & Stratton Lawn and Garden Equipment Engine Spark Plug Boot), 690982 (Briggs & Statton Lawn & Garden Equipment Engine Intake Valve Push Rod), 696854 (Briggs & Stratton Lawn and Garden Equipment Engine Oil Filter), 808656 (Briggs & Statton Lawn & Garden Equipment Engine Fuel Pump Assembly), 791766 (Briggs & Stratton Lawn & Garden Equipment Engine Fuel Line, Red), 222698S (Briggs & Stratton Lawn & Garden Equipment Engine Flywheel Key).

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 40N877-0039-G1: 594213 (Briggs & Statton Gasket), 594203 (Briggs & Statton Lawn & Garden Equipment Engine Intake Gasket).

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 40N877-0039-G1: 594937 (Briggs & Statton Screw), 691108 (Briggs & Stratton Lawn & Garden Equipment Engine Hex Screw).

Before you buy

Match 40N8770039G1 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.