The SIU Credit Union is a mortgage from SIU Credit Union. The ongoing APR is New mobile home (never titled): 10.50% APR 60 months, 11.25% 84 months, 11.50% 120 months; used mobile home (up to 20 years): 11.00% 60 months, 11.75% 84 months, 11.99% 120 months. Loan terms: 60, 84 or 120 months.