South African prop Wian du Preez will move to Munster on a two-year contract.
The 27-year-old front rower who proved such a success during his previous short tenure, has agreed terms.
Team Manager Shaun Payne said: "Wian proved an extremely effective player with a massive work ethic and the ability to quickly adapt to the challenges placed before him. He was also very popular with the other squad members.
"We are delighted he has agreed to return and know he will be a hugely positive influence, both on the field and as a role model to the young Munster front rows who are coming through".