ALTERNATOR PART SPECIFICATIONS: Voltage: 12, Rotation: CW, Amperage: 65, Clock: 9, Regulator: IR, and Fan Type: EF. DB Electrical aftermarket, high-output alternators are designed for perfect fitment to replace the ones that originally came with your tractor or vehicle. COMPATIBILITY: DB Electrical 400-24009 Alternator can replace these parts: ARROWHEAD (ABO0051), BARSANCO (170-001), BOSCH (0-120-488-205, 0-120-488-293, 9-120-060-040, F-005-A00-023), CATERPILLAR (3E7285), JOHN DEERE (AT173624, AT220393, RE533516, SE501387, TY6799). See description for a complete list of part numbers the 400-24009 alternator can replace. HIGH-PERFORMANCE ALTERNATOR: DB Electrical alternators have high-temperature epoxy, heavy-duty rectifiers, high-quality regulators, well-engineered bearings, and high-temperature grease to withstand high-heat environments. OEM STANDARDS: Designed Direct-Fit OEM replacement alternator for crawler, loader, skidder, tractor, trencher, backhoe, excavator, and lift truck, the 400-24009 alternator can replace the original auto parts and deliver equivalent performance. OEM fitment specifications make for easy installation. ENGINEER TESTED: Our alternators underwent rigorous testing programs to ensure optimal performance. Most alternators are supplied with their final test results and performance curve. We work directly with factories to manufacture each component to our exacting quality control standards.