Specs: Alternator, Voltage: 12, Rotation: CW, Dimension: Replacement 70A 7SI Unit:, Mtg. Ear 1 Hole: M8-1.25 Threaded, Mtg. Ear 2 Hole: 10.3mm Unthreaded, Mtg. Ear 1 Thickness: 15.9mm, Mtg. Ear 2 Thickness: 50mm, B+Terminal: M6-1.0, S Terminal: Spade, L Terminal: Spade, Amperage: 70, Clock: 12, Pulley Class: S6, Regulator: IR, Fan Type: IF, Brief: Pleasurecraft Marine, 6-Groove Pulley 50mm OD, Used on Crusader, Pleasurecraft Applications Replaces OEM Numbers: ARCO MARINE: 20821, ARROWHEAD: ADR0315, DELCO: 19020617, EMP PARTS: 4-5984, 4-6453, J & N: 400-12331, J & N (OLD): 400-12169, LESTER: 8467, PLEASURECRAFT: RA097007A, QUICKSILVER: 8M6007463, SIERRA MARINE: 18-5984 Compatible With/Replacement For: CRUSADER Various Models All 1-year warranty protects you after your purchase. We're confident that our products will work flawlessly once installed in your vehicle. But in a rare case that it does not, we'll replace it anytime within one year of your order. If you have a problem, we will take every step to assist you, contact us for a replacement. 100% New Aftermarket Alternator built to meet OEM specifications