12 Dec, 14:42
Prop Cian Healy is expected to miss the start of the 2014 RBS 6 Nations after undergoing surgery on his injured ankle on Wednesday.
Besides his proven try-scoring ability, Howlett's overall work-rate on and off the pitch has seen him become an integral part of Munster's success.
Howlett, 33, stated: "I'm obviously delighted to have agreed terms. My family and I are very happy here in Munster, it's home to us and we're very much looking forward to remaining here."