This agreement was supported by the Ministry of Foreign Affairs and the Pacific Islands Emergency Management Alliance.
Fire and Emergency National Manager People and Workforce Capability, Ian Pickard said Pahiatua Volunteer Fire Brigade's 1993 Type 1 Mitsubishi FK 160 Appliance is still fully functional and would have otherwise been sold in the open market.
"It's the first time in nearly 12 years Fire and Emergency New Zealand have sent a truck across to our Pacific neighbours."
He said their colleagues in the Cook Islands were pleased when they told them they could replace their old truck, following some minor repairs and a full service.
"This vehicle still has a lot of life left in it to support Rarotonga residents for years to come"
Pickard said all Fire and Emergency signage and identification was removed prior to its departure.
The costs to ship the truck is being taken out of Fire and Emergency's annual budget.
The truck will be delivered in Rarotonga today.