The Government has confirmed that a £4.5 billion pound contract will go ahead to build the next generation of Britain's Intercity Trains in County Durham.
A new Hitachi factory will be built at the site in Newton Aycliffe - it will manufacture 92 high capacity trains to replace the existing stock of Intercity 125's.
The contract will bring 900 new jobs to the area and many more in the supply chain.
The company has also confirmed that its research and development centre will be based at the site. MP Phil Wilson says it's a fantastic coup for County Durham.
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The constituency of Washington and Sunderland West includes the UK's largest car plant, which was opened by Nissan in 1984.
This seat was formed prior to the 2010 General Election, taking in Sunderland city centre and the Ryhope area to the south.
The constituency of Stockton South includes relatively affluent areas like Yarm and Eaglescliffe.