DOP83-406K Kubota Oil filter Shop Pack of 12 DOP83-301K fits model GX601K1. For water cooled engines on tractor models 3813 & 4514. 27 Micron. M20 x 1.5 Mounting thread, 2-1/1" Mounting seal OD, relief pressure 11-14 PSI anti-drain valve, OD 3-1/8", 2-7/8" Ht. Replaces # 70000-15241.