Spinner Sunil Narine claimed 5-27 on Monday to bowl the West Indies to a tense 20-run victory over New Zealand in the fifth and final one-day nternational at Warner Park.
Narine's career-best haul helped the hosts secure a 4-1 victory in the five-match series, following a 2-0 sweep in the Twenty20 internationals.
New Zealand, in pursuit of 242, were bowled out for 221 despite a defiant 69 from Kane Williamson.
The West Indies' total of 241-9 was built around half centuries from all-rounders Dwayne Bravo and Andre Russell.