Air Filter - suits Briggs & Stratton

This high‑quality replacement air filter (SKU: JM621) is designed to fit a wide range of Briggs & Stratton engines, directly replacing OEM part 399877. Measuring 4-5/8” (118mm) square and 7/8” (22mm) thick, it ensures a precise seal and optimal engine protection. Durable construction helps trap dust and debris, extending engine life and maintaining peak performance.

• Direct replacement for BRIGGS & STRATTON 399877 – no modifications required.
• Premium filtration media captures fine particles for reliable engine protection.
• Easy to install – simply remove the old filter and replace with this exact fit.

• Briggs & Stratton single‑cylinder engines (e.g., Series 450, 500, 550, 625, 675).
• Lawn mowers, generators, and pressure washers using OEM 399877.
• Replaces Stens 320-103 and 102-541 for broad cross‑compatibility.

Air Filters – essential replacement parts for small engines, ensuring clean airflow and reliable operation.