One New Aftermarket J&N Electrical Products AlternatorTech Info:-Arrowhead: 400-48275, AMT0271, MAT0271; Lester: 11578; Fits Mazda: ZJ38-18-300; Fits Mitsubishi: A2TG1391-LESTER: 11578, VOLT: 12, AMPS: 90, CONDITION: New, REGULATOR CLOCK: 10:00, ROTATION DIRECTION: Clockwise, MOUNT HOLE ID 1: M10x1.25, MOUNT HOLE 1 TYPE: Threaded, MOUNT HOLE 2 TYPE: Unthreaded, MOUNT HOLE ID 3: M10x1.25, MOUNT HOLE 3 TYPE: Threaded, MOUNTING EAR THICKNESS: 0.512", MOUNTING EAR THICKNESS: 13mm, MOUNTING EAR 2 THICKNESS: 0.512", MOUNTING EAR 2 THICKNESS: 13mm, MOUNTING EAR 3 THICKNESS: 1.024", MOUNTING EAR 3 THICKNESS: 26mm, FAN LOCATION: Internal, REGULATOR LOCATION: External, TERMINAL ID 2: B+, TERMINAL 2 SIZE: M8x1.25, TERMINAL ID 3: N/C, TERMINAL 3 SIZE: Spade, TERMINAL ID 4: D, TERMINAL 4 SIZE: Spade, TERMINAL ID 5: P, TERMINAL 5 SIZE: Spade, POLARITY: Negative, NUMBER OF GROOVES: 6, GROOVE OD: 2.165", GROOVE OD: 55mm, PULLEY TYPE: Solid, PULLEY OUTER DIAMETER: 2.323", PULLEY OUTER DIAMETER: 59mmReplaces Part Number(s): 400-48275 All OEM part numbers and logos are to be used for identification purposes only