One Fits Case – Fits International Muffler that fits Tractor Models: 1086, 1486, and 1586. Technical Information: Dimension A (1) Horizontal – Oval Body – Shell Diameter 8″ X 11 1/2″ Dimension B (2) Inlet Length 1″ Dimension C (3) Inlet Inside Diameter 3 5/8″ Dimension D (4) Shell Length 13 1/2″ / Overall Length 15 1/2″ Dimension E (5) Outlet Length 2″ Dimension F (6) Outlet Outside Diameter 3 1/4″ Replaces Part Number: 103978C2, CA-32, 15088T Models This part fits: 1086, 1086 4186 1586, 1486, 1586 Reference Numbers: 103978C1, 103978C1-A, 103978C2, 103978C2-A, 15088T