The Air Filter is a core filtration component of the engine intake system. The SAYING SY-00063 Air Filter (corresponding to SogefiPRO SAF1186) carries original OE number 13 71 7 521 023, with dimensions of 312/160*275/187*42 mm. It fits BMW applications, mainly covering the models listed below. This part cross-references to aftermarket equivalents such as MANN-FILTER C 31 149, MAHLE None, FRAM None, CHAMPION None, HENGST E728L, BOSCH 0986AF2950, WIX WA9607, serving the aftermarket replacement and maintenance demand for Air Filter. Manufactured under the Sogefi authorized system, SAYING delivers OE-equivalent quality with multi-brand cross coverage, helping service channels cover a wider vehicle range with lower inventory.
| Brand | Part No. |
|---|---|
| BMW (OE) | 13 71 7 521 023 |
| SAYING | SY-00063 |
| Sogefi | SAF1186 |
| MANN-FILTER | C 31 149 |
| MAHLE / KNECHT | None |
| FRAM | None |
| CHAMPION | None |
| HENGST | E728L |
| BOSCH | 0986AF2950 |
| WIX | WA9607 |