The Ann and James Ritchie II arrived on Saturday morning.
The £2.2 million Shannon lifeboat is the most advanced in the RNLI fleet.
A spokesman said it's safer and faster and designed to keep crew safer on shouts.
A formal naming ceremony and service of dedication will take place in early summer.
Ramsey may be darker as lights get repaired
How much does staff sickness cost government?
King's Baton Relay gets underway today
Cavendish given honour of opening Le Mans race
Cruise ship visiting today
Manxman returns to normal service after 'technical issue' fix
Island retains its Moody's Aa3 credit rating
Masterplan for Island's biggest park on display today