you will need one of the following depending on the line size: 1/8" line: JJS5078
Specifications 5-3/16" tall x 6" wide
Quality Aftermarket AP338-45
With 116 or 125 CI engines for all listed models
Water Pump fits Kubota Tractor | Replaces 15521-73039 Farmall you will need one ofQuality Aftermarket Water Pump with Gasket Fits Kubota Tractor Models: L235, L275, L355SS, L3350, L3350DT, L4350, L4350DT Industrial Models: R400B, KH90H, KW161 2, KH60H, R420, KH91H, R510B, R400, KGH66H, KH151, KH91, KX121 2, KX151, R420S (SN BY0001 and up), KX121, R410, KH101, KX161, KX101, KH60, R520, R510, KH90, KH66, R410B Replacement Numbers 15521 7303 2 15521 73033 15521 73035 15521 73039