Gewxgzo 394018 Air Filter Pre-Filter – OEM Replacement

The **Gewxgzo 394018 air filter pre-filter** is a high-quality replacement part designed for compatibility with a wide range of **Briggs & Stratton (B&S), John Deere (JD), and MTD** engines and lawn mowers. This pre-filter is specifically engineered to work with **B&S models 290400, 290700, 294400, 294700, 303400, 303700, 350400, 350700, 400400, 401400, 402400, 404400, and 422400**, as well as **JD models GT235, GT235E, LTR155, LTR166, LT166, LT170, LX288, SST16, and SST18**. It also fits select **MTD walk-behind and turf-rider mowers**, including the **MMZ-1848, 1848F, 1852H, and various Misc Tool models** from the late 1980s to the mid-1990s.

This pre-filter is part of the **394018 series**, matching OEM numbers such as **B&S 392642, 394018, 394018S, 4135, 5050H, 5050B, and 5050K**, as well as JD’s **LG394018**. It pairs with pre-filter replacements like **B&S 271271, 272490, 272490S** and JD’s **LG272490, LG272490S, M84655, and PT8999**. The filter is built to **5-5/8-inch inner diameter (ID) x 7-inch outer diameter (OD) x 2-1/4-inch height**, ensuring a precise fit for engines rated **14-18HP**, including the **Vanguard V-Twin series**. Whether you’re servicing a **commercial-grade lawn mower or a residential model**, this pre-filter helps maintain optimal airflow and engine performance.

As a direct replacement for OEM parts, this filter is manufactured to meet the same rigorous standards as original equipment, ensuring durability and compatibility. It’s an essential component for **prolonging engine life** by trapping larger debris before it reaches the main air filter. Always replace the pre-filter at the manufacturer-recommended intervals to avoid clogging and maintain efficiency. Stock up today to keep your equipment running smoothly across the Australian season.