Briggs & Stratton (B&S) 497595 12V 16-Tooth Nylon Gear Starter Motor for 8-12.5HP Single-Cylinder Air-Cooled Engines

Voltage: 12 V
Power: 0.6 kW
Teeth: 16 teeth (16T, reinforced composite nylon plastic gear)
Rotation: Counterclockwise (CCW)
Structure: Permanent Magnet Direct Drive (PMDD) / Plastic Gear Bendix

Mounting Configuration: Standard 2-bolt flange mount
Dimensions: 4-1/4 in. (108 mm) between the motor housing end caps; approximately 7-1/4 in. (184 mm) overall length
Mounting Hole Center-to-Center Distance: Approximately 2.25 in. (57 mm)
Electrical Connection: 1/4"-20 / M6 positive terminal stud; case-grounded negative connection

A classic Briggs & Stratton 12V compact permanent-magnet direct-drive (PMDD) starter motor, designed for 8-12.5 HP single-cylinder, air-cooled gasoline engines with aluminum flywheel ring gears. It features a 16-tooth high-damping composite nylon drive gear, which significantly reduces engagement noise and protects the aluminum flywheel ring gear from wear. Its simple, durable internal design also makes servicing and replacement exceptionally easy.