Water Pump
CTPA-15321-73032 Replacement Part to Fit:  Kubota For Models: L175, L345, L345DT, L345F, (L245F, L245DT ALL SN <14147), L245H SN <1728 3 1/2" diam., 3/8" belt groove  Price:  $74.49  Buyers Club Price:  $67.04