Argentina hooker Eusebio Guinazu has signed for Munster on a four-month deal to offset Mike Sherry's long-term shoulder injury.
The 32-year-old joins the Guinness Pro12 province after two seasons at Bath, following stints at Biarritz, Toulouse and the Stormers.
The 36-cap front-rower will ease Munster's hooker shortage with Sherry recovering from shoulder surgery.
"We need to hit the ground running this season and to do this we need to have a full complement of players available to us," said Munster head coach Anthony Foley.
"We have short-term setbacks with Niall Scannell rehabbing from wrist injury and Damien Varley managing a foot injury, but with Sherry ruled out until next year it is great that we can call on the services of an experienced, versatile player such as Eusebio.
"His availability will certainly help us get through the opening period of the season."