New Discount Starter and Alternator 5389N Replacement Starter Fits Mercury Mariner Marine Outboard 135HP 150HP 175HP 200HP New Aftermarket Part (Not Rebuilt/Refurbished/Repurposed) OEM(s): Mercury Marine, Johnson Electric Type: PMDD Voltage: 12 Volts Rotation: CCW Teeth/Splines: 8 Teeth/Splines Pinion/Splines OD: 26.9mm / 1.059in Mounting Hole 1: 4.9mm ID Unthreaded Approximate Weight: 9.585 lbs / 4.36 kg Replaces: API MARINE MOT3008 ARCO MARINE 5380 JOHNSON ELECTRIC 4820440, 4820540, SM48204, SM48205 MERCURY MARINE 50-44415, 50-79472, 50-79472-1, 50-79472T2, 50-884238T, 50-44414, 50-77141 UNITED TECHNOLOGIES 1718328-M030SM, 4820540-M030SM, SM17183, SM48205 Please verify this is the right part number before ordering