ApplicationCompatible for Chevy-V8 Small Block, Big Block& V6 with A/T& M/T with 153 or 168 Tooth Ring GearOEM(s) ReplacedCompatible for Chevrolet, for General Motors, for HitachiSpecificationOEM(s) Replaced: Compatible for Chevrolet, for General Motors, for Hitachi Material: Aluminum Color: Red Interchange Part Number: 18493 Hatachi: S13-65C, S13-65S1, S13-65S1BX Type: 3HP, Tooth Flywheel: 153 168 Number of Teeth: 9 Voltage: 12 Power: 2kW / 2.68HP Rotation: CW Gear OD: 0.988in / 25.1mm Version: High Torque Version/3-Clocking Positions Mtg Ear 1 Hole: 10mm Unthreaded Mtg Ear 2 Hole: 10mm Unthreaded Mtg Ear 3 Hole: 10mm Unthreaded Mtg Ear 4 Hole: 10mm Unthreaded Package Includes: 1 x compatible for Mini Starter Rotatable Mounting Pad Mounts Bolts, Shims & Handware as Pictures showFeature- 100% New, OE Quality, fit and Performance - Heavy Duty 2.0kW, 3HP*, OSGR, 12 Volt, CW, 9-TOOTH Pinion - Ideal for High Compression Engines up to 18:1 Compression - Soolid Billet Aluminum Mounting Block - Torate Motor Position for Additional Clearance - Full Ball Bearing Design - Compact Design for More Clearance between Oil Pan & Headers - Larger Field Windings,Stronger Armature, Bigger Brushes and 1 inch Longerh than the S1935NNotice- No instruction included; professional suggested. - Please double confirm the fitment details before purchasing. - Please feel free to contact us for whatever we can help for you.