Boat Motor Pinion Gear 13T 3C8-64020-0 1 2 43 16138004 compatible with Mercury Tohatsu Nissan Outboard 40HP 50HP 2-stroke

Exact OEM Replacement: Direct high-quality aftermarket replacement parts engineered to match original manufacturing specifications. Exactly replaces part numbers 3C8-64020, 3C8-64020-0, 3C8-64020-2, and Mercury 43-161382 / 16138004
Premium Quality Made in Taiwan: Precision-manufactured in Taiwan from high-strength marine-grade steel. Offers exceptional structural density, extreme wear resistance, and long-lasting defense against salt corrosion.
Wide Cross-Brand Compatibility: Optimized to fit Tohatsu, Nissan, Mercury, and Mariner outboard lower units. Universally replaces matching 13-Tooth pinion gear configurations in lower unit assemblies.
Targeted Engine Applications): Specifically tailored for 2-stroke/2-cylinder 40HP and 50HP outboard motor ranges, including Tohatsu models M40D, M40D2, M50D, M50D2, and corresponding Mercury International series.
Precise Sized Components): Features exact dimensions for seamless drop-in assembly: outer gear base profile measures ~43mm, top ring collar measures ~35mm, with a ~21mm multi-spline central bore for maximum shaft alignment.