This Engine Control Module (ECU) is compatible with 2003 Mercury Mountaineer and Ford Explorer models. It has a maximum amperage of 12A and requires programming for proper installation. The OEM part number is 3L2A12A650AXB and it can be interchanged with part numbers 590-07253, 2U7A12A650CHA, 2U7A12A650CJA, 2U7Z12A650CHA, 2U7Z12A650CJA, 3U7A12A650BRB, 3U7Z12A650BKA, 3U7Z12A650BKB, 3U7Z12A650BRA, 3L2Z12A650MC, 3U7A12A650BKA, 3U7A12A650BKB, 3U7A12A650BRA, 3L2A12A650AAB, 3L2A12A650AAC, 3L2A12A650AXA, 3L2A12A650AXB, 3L2Z12A650AAB, 3L2