Three models
SILEN (5/6/7/40/44/45) after 2007, Nox 75/100/150 : 0000133346
- Includes: Pre-filter, body bleed plug and gasket, round cover (current), pre-filter seal and gasket.
SILEN: 1000010423
SILEN (3,4,5,6,7) pre-2007: 0000005486
- Includes: Pre-filter, bleed plug and gasket, old cap (with centre groove) and gasket