This is an original  water pump made in England, Not Taiwan; that needs to rebuilt. It has a press on 3/8 inch wide pulley that is 4 1/2 inches diameter. The original number on the impellor,  AEC2020 is visible. This  came from a shop that rebuilt both MGC and Austin Healey. Advice to identify appreciated..I have  many MG and hundreds of parts for all British cars 1950-1994, on my eBay store.. They are  arranged in 20 categories. If you don't see what you need, please ASK., and I will put it in the store for you..  Please inquire  1 954 JAGUARS  or  1 954 JAGPART, ... I had compulsively hoarded parts for my restoration shop and my collection for 40 years;  But have moved all to SEBRING, The Heart of Old FLORIDA. I have the largest stock of  original Old English parts in the colonies.. I also give free restoration advice. SHIPPING, in the US is by Priority Mail or OVERSEAS;  is Priority Mail. Shipping overseas is an ESTIMATE; Please give me your address for correct shipping ..Please inquire.. James Dean, thejaguru. I also give free advice.