Air Filter Briggs & Stratton #491588 | GRI101-046-C

Keep your small engines running clean and efficiently with the ESF 101‑046 air filter. Designed as a direct replacement for Briggs & Stratton #491588, it fits a wide range of 3–5 HP engines and select Quantum models. The pleated media traps dust and debris, helping prevent engine wear while maintaining smooth operation and consistent power. Easy to install and cost‑effective, it’s the perfect maintenance solution for lawn mowers, generators, and other outdoor power equipment.

• High‑quality air filtration element – Designed to replace the Briggs & Stratton OEM #491588 air filter, ensuring proper filtration performance for compatible small engines.
• Precision fit for multiple engine models – Engineered to fit 3 HP to 5 HP horizontal and select Quantum series engines, delivering reliable compatibility and easy part swap‑in.
• Pleated media for superior dust capture – Pleated filter construction increases surface area to trap dirt, dust, and debris before they enter the engine, helping prolong engine life and performance.
• Improves engine efficiency – By maintaining clean intake air, it helps ensure better combustion, smoother running, and more consistent power output during use.
• Reduces maintenance and wear – Keeps abrasive particles out of the engine internals, reducing wear on critical components and extending time between service intervals.
• Cost‑effective replacement part – An affordable maintenance solution that helps protect your equipment without the need for expensive repairs or engine overhauls
• Fits 3.5 to 6.5 hp horizontal Quantum engines. For 80200, 82200, 83400, 112200, 121700, 121800, 122700, 123700, 123800, 124700, 124800, 125700, 126700, 126800, 130200 and 132200 engine Series. Also fits Toro models 20323, 20835, 20836 and 29639.
• Replaces ARIENS: 21529800, BRIGGS & STRATTON: 3399959, 4101, 4915, 491588, 491588S, 5043, 5043A, 5043B, 5043D, 5043H, 5043K, CRAFTSMAN: 3364, 33644, JOHN DEERE: AM116236, LG491588, LG491588JD, LG491588S, PT15853, TORO: 119-1909