5-1/4″ x 4-1/2″ x 1″ Paper Air Filter. Designed for 4 – 5.5 HP Briggs & Stratton Vertical Shaft and 3 & 5 HP Quantum Horizontal Shaft Engines with Horizontal Rewind. This filter effectively traps dirt, dust, and debris, ensuring optimal engine performance and longevity. It replaces Briggs 491588, 399959, and Quantum series No 121700, 122700, 124700.
- 5-1/4″ x 4-1/2″ x 1″
- Fits 4 – 5.5 HP Briggs & Stratton Vertical Shaft & 3 & 5 HP Quantum Horizontal Shaft Engines, with Horizontal Rewind
- Replaces Briggs 491588, 399959
