The Katahdin Federal Credit Union is a auto loan from Katahdin Federal Credit Union. The ongoing APR is Annual Percentage Rate as low as: up to 36 months 5.25%; 37-48 months 6.00%; 49-60 months 6.25%; 61-72 months 6.50% (Model Year 2018-2021); loan rates are as of October 1, 2026.