WD10001x Oil Filter - main applications: KUBOTA L-Series, L1-Series, M-Series, M40-Series, ST-Series, STV-Series, Z300-Series (Turn Mower), ZD-Series (Turn Mower)
W818/82 Oil Filter - main applications: KUBOTA B1-Series, B1000-Series, B30-Series, B4000-Series, B7000-Series, F-Series/FZ-Series (Front-mount Mower), G-Series (Garden Tractor), GT-Series (Lawn Tractor)