Import Bf40 / Bf50 Case Assy., Gear *Nh282mu* — Buy in wholesale FOB from Supplier in Japan

This genuine Honda gear case assembly corresponds to OEM part number 41100-ZW4-H16ZA, engineered for BF40 and BF50 four-stroke outboard marine engines. The assembly combines an aluminum alloy die-cast housing with precision-matched steel gears to transfer power from the crankshaft to the propeller shaft. Its sealed lubrication system maintains proper oil distribution under marine operating conditions, with the cast housing providing corrosion resistance in saltwater environments. The unit is a complete replacement assembly rather than a repair kit, intended for professional marine technicians and engine rebuilders.

The aluminum alloy housing is gravity or pressure die-cast to achieve thin-wall sections with adequate strength for gear loads, then machined for bearing bores and sealing surfaces. Steel gears are typically carburized or nitrided for wear resistance on tooth flanks, with core toughness retained for impact loading from propeller strikes. Standard marine gear case assemblies include input pinion, forward and reverse gears, propeller shaft, and dog clutch mechanism within the single housing. Gasket surfaces, oil seals, and venting provisions are machined to Honda marine specifications. The NH282MU designation in the product title may indicate a specific production batch, market variant, or internal supplier coding for this assembly.

Marine engine distributors, boatyard service centres, and independent marine mechanics represent the primary buyer segments for this component. The assembly ships as a complete unit, reducing field assembly error during engine rebuilds. Importers should verify whether the unit includes mounting gaskets, oil seals, and drain plug hardware, as completeness varies by supplier configuration. The BF40 and BF50 engines remain in widespread recreational and light commercial service globally, sustaining aftermarket demand for gear case replacements following corrosion damage, impact failure, or wear from contaminated lubricant.

LLC Yumbo maintains a registered address in Toyama, Toyama Prefecture, Japan (postal code 9300802), positioning the company within Japan's established marine and industrial manufacturing corridor along the Sea of Japan coast. The supplier holds a Harbor trust tier classification, indicating platform-documented verification of business registration and operational status. Response metrics show 0.00 percent response rate with zero average response hours recorded, suggesting limited or no engagement through platform inquiry channels at time of listing capture. Buyers should anticipate potential communication delays and plan for direct outreach or third-party facilitation.

The company listing focuses exclusively on genuine Honda marine engine components, specifically targeting the BF40 and BF50 outboard aftermarket. No additional product lines, production capabilities, or client references appear in the available profile data. The supplier does not claim manufacturing ownership, implying trading, distribution, or salvage sourcing rather than original production. Importers should verify stock location, whether inventory is held in Japan or drop-shipped, and the supplier's relationship to Honda authorised distribution channels before committing to volume orders.