OIL FILTER EMERALD & MARQUIS

For Emerald I 4000 (units built before and after 9/87), Emerald Plus 5000, 4000 (spec H and beg spec J), Marquis 5000 (BGM)(spec B and spec G), BF, BF Power Drawer, BFA (spec A), BGA (spec A), BFA (spec B), BGA (spec B), BGAL.Onan Part No. 122-0645.