The theft last month caused disappointment and outrage among Arriva Trains Wales staff and the wider community, particularly as it had been used to save the life of local man Leighton Williams.
At a special presentation, Sharon Owen gifted the new defibrillator to Arriva Trains Wales staff so it can once again be ready to use in an emergency.
"We're a small charity in Wales and we really wanted to help," said Sharon.
"It was heartbreaking to hear about the theft and people don't realise just how important this equipment is and whoever stole it should think about how it might have been needed one day to save someone close to them, so we're really pleased to present this to Bridgend Station."
Last year, Leighton Williams from Ogmore Vale had been into Graham Paul accountants when he was taken ill with a cardiac arrest. After calling 999, staff there were told to get to the railway station quickly as there was a public defibrillator there. John Squire of the firm sprinted to get the equipment while his colleagues Kelly Morgan and Katherine Roberts performed CPR on him. Mr Williams was airlifted to Morriston hospital and thankfully made a full recovery.
(Leighton Williams with John Squire, Kelly Morgan and Katherine Roberts)
"If it hadn't been for the defibrillator I'd be dead," he said.
"That's why I was so devastated to hear it had been stolen. We've been raising money at Ogmore Vale Rugby Club and will be delighted to give it to Welsh Hearts after their generous donation."
At the event on Friday, 9th March, Ms Owen was presented with a bunch of flowers by Bridgend Station Manager Tom Owens, Customer Services Director Bethan Jelfs and Head of Stations Jeremey Williams.
Customer Services Director for Arriva Trains Wales Bethan Jelfs said: "These defibrillators are a real community asset and we are delighted to work with Welsh Hearts and hope to do so closer in the future. Thankful it was able to help save Leighton's life and it's brilliant that it's been replaced so is here if it's ever needed again."
Bridgend MP Madeline Moon said: "This isn't about a defibrillator being taken from Bridgend station, it's about the theft from a community.
"The amazing gesture by Welsh Hearts will benefit not just those using the station but every home and business in the surrounding area who might need to access it to save a life."