Parts for Briggs & Stratton 40R577-0010-H1: Flywheel, Controls, Wire Harness, Alternator, Starter Parts

Protects your lawn tractor engine from debris and dirt that could cause damage. Replace if cracked, broken, or clogged to maintain proper airflow and engine protection. Verify fit with your model number before ordering.

Small metal hex nut for lawn mower engines. Secures components with threaded bolts. Replace if stripped, corroded, or missing during maintenance.

Flange screw for lawn and garden engines. Distributes connection force over a larger area. Replace if threads are stripped, head is damaged, or screw is missing.

Engine won't start or runs rough? This ignition coil delivers spark plug voltage. Common fix for no-start issues on small engines and lawn equipment.

Metal mounting screw for lawn and garden engines. Secures components together throughout the equipment. Replace when stripped, rusted, or missing.

Fixes charging problems and electrical system issues in lawn and garden engines. Stabilizes voltage output to prevent battery drain and equipment failure.

If your engine clicks but won't start, the starter drive may be worn. This part engages the flywheel to crank the engine during the starting process.

Flange screw for lawn and garden engines. Distributes connection force over a larger area. Replace if threads are stripped, head is damaged, or screw is missing.

Engine won't start or runs rough? A cracked or missing spark plug boot causes misfiring and prevents proper ignition. Easy DIY replacement part.

Engine won't start or flywheel won't turn? This ring gear screw secures the starter ring gear to enable proper engine cranking. Simple repair.

Fix a lawn mower that won't start or makes clunking noises when starting. This starter pinion gear engages the flywheel to crank your engine. DIY-friendly repair.

This brush retainer is part of the starter motor on many types of lawn and garden machinery. It comes with both the retainer and a set of four brushes. The main job of the brush retainer is to hold a set of carbon brushes against the commutator bars located on the armature. If the brush retainer is worn, damaged, or improperly seated, it can cause problems with the equipment. The starter motor will not be able to get the proper amount of current from the battery.If the brush retainer might be causing problems, a visual inspection can be performed. A damaged brush retainer can wear down to the wire lead and become burned, pitted, or cracked. When the brush retainer is worn out, it can decrease engine performance, reduce braking, and cause the motor to lose power. This brush retainer is an authentic OEM replacement part sourced directly from the manufacturer. It is sold as an individual part. The retainer is made to be used with lawnmowers, snowblowers, tillers, and wood chippers created by Briggs & Stratton, Craftsman, Toro, Cub Cadet, Lawn-Boy, Snapper, MTD, and Simplicity.