NOS, one ORIGINAL MG / BMC water pump, Part No 1G2301 - ss to GWP103 under Unipart. Also believed fitted to the Austin A40, A50 and the A55 Mk1 along with associated Riley and Wolseley models. This pump is fitted to all MGA Mk1 and Mk2 Cars - 1955 - 1962, with the exception of the Twin Cam models.