This is a Brand New KUMAR BROS USA THERMOSTAT for KUBOTA This Thermostat Is suitable for Kubota V2403 Engine Our Part# KBCO4003TH Directly replaces Kubota Part # 1A021-73012 Comes with Gasket Applications Suitable For : Kubota Tractor L SERIES : L4740, L5040GST, L5240, L5740, L48TL, L5030GST, L5030HST, L5030HSTC Kubota Tractor M SERIES : M4800SU, M59, MX4700DT, MX4700F, MX4700HST, M5410DT, M5140DTC, M5640SU, M5640SUD, MX5000DT, MX5000F, MX5100DT, MX5100F Kubota Engine: V2403-M-E2, V2403-M-TE2, V2403-M-ETLB, V2403-MA-E-HST, V2403-MA-E-GST, V2403-M-EA-SU, V2403-M-TE2-HST2, V2403E3MX2, V2403E3MX3, V2403-M-EA, V2403-M-TE3