1983 Mariner Outboard Models Where can I find my serial number? 9.9 [EL] 7010523 9.9 [E] 7010503 9.9 [ML] 7010223 9.9 [M] 7010203 50 [ELH] 7050553 50 [ELPT] 7050623 50 [EL] 7050523 50 [E] 7050503 70 [ELPT] 7070623 70 [EL] 7070523 200 [ELPT] 7200623 200 [EXLPT] 7200643
