Air Filter Tecumseh 35066 | ESF101-604

The ESF 101‑604 Air Filter is a reliable, OEM‑equivalent replacement intake filter engineered to protect small‑engine performance by capturing dust, dirt, and airborne debris before it enters the combustion chamber. Specifically designed for 3.5 HP and 4 HP vertical‑shaft engines (such as Tecumseh ECV, H, LAV50, LEV, LV, OVRM, TC, TCH, TVS, TVXL series), this air filter helps maintain engine efficiency, improve start‑up reliability, and extend equipment life. It also fits select Sears and John Deere machines that use similar filter cartridges. For enhanced protection, it’s often used with the corresponding ESF pre‑filter 101‑605.

• OEM‑Equivalent Replacement for Tecumseh #35066 / Sears 63087A / Similar Filters - Ensures precise compatibility with specified small engines for dependable performance and correct fitment.
• High‑Efficiency Filtration Media - Traps harmful dust, dirt, and particulates before they reach the engine, reducing internal wear and preserving engine health.
• Improved Engine Operation - Cleaner intake air supports smoother starts, consistent power delivery, and efficient combustion.
• Durable Construction - Built to withstand outdoor working environments and repeated maintenance intervals, giving long service life under normal conditions.
• Direct Drop‑In Installation - Easy to replace with no modification needed, making routine maintenance faster and more convenient.
• Enhances Equipment Durability - By protecting internal engine components from contaminants, the filter helps extend overall equipment life and lowers long‑term repair costs.
• Works With Optional Pre‑Filter (ESF 101‑605) - For even better protection in dusty conditions, pairing with the ESF pre‑filter helps capture larger particles before they reach the main filter