Kit Includes: (1) Oil Filter (2) Fuel Filter (1) Air Filter (1) Hydrostatic Transmission Filter Replaces OEM Part Numbers: Replacement for Oil Filter: HH150-32430 Replacement for Fuel Filter: 12581-43012 Replacement for Air Filter: K1211-82320 Replacement for Hydrostatic Transmission Filter: HHK70-14073 Compatible with Models: Compatible with Kubota ZD18, ZD18F, ZD21, ZD21F, ZD221, ZD25F, ZD28, ZD28F Specifications: Fuel Filter Specifications: Microns: 10 Fuel Line: 5/16" Air Filter Specifications: Inner Diameter: 1 3/4" Outer Diameter: 3 1/2" Oil Filter Specifications: Thread: 20 x 1.5m Outer Diameter: 2 5/8" Height: 2 1/2" Micron: 20