Fuel Filter WK820/15 WK820/17 82015 High-Efficiency Filtration

Fuel filter WK820/15, OEM 82015, also compatible with WK820/17; widely fits older Volkswagen, Audi, Ford and other German/American models. Core function is filtering fuel impurities and water, protecting injectors and fuel system. Replacing noticeably improves weak acceleration and idle jitter, especially for high-mileage vehicles. If starting difficulty, uphill weakness, or sudden fuel consumption rise occur, inspect and replace this filter.