03760300 Spacer – 1.258" ID x 1.750" OD x .550" RB600 The Briggs & Stratton 280439S

The Briggs & Stratton 280439S Starter Pulley is a genuine OEM replacement recoil starter component designed for select Briggs & Stratton small engines

The AP 300 S features great battery capacity with long run times

Zoom / CE Models

This belt transfers engine power to the mower deck spindles

Chain Brake: Yes

03760300 Spacer – 1.258" ID x 1.750" OD x .550" RB600 The Briggs & Stratton 280439S03760300 Spacer 1. 258" ID x 1. 750" OD x . 550" The 03760300 Spacer is an OEM reference spacing component designed to maintain proper alignment and spacing between parts in outdoor power equipment assemblies. This spacer helps reduce wear, supports correct component positioning, and ensures smooth equipment operation. Manufactured to original equipment specifications, it is ideal for replacement during maintenance or repairs involving wheels, decks,