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6L5-45511-01
6L5
Constructed from premium high-tensile alloy steel, the shaft is built to handle persistent twisting forces, thrust loads, and shock impacts typical in marine use. State-of-the-art CNC machining delivers exact tolerances for diameter, length, spline design, and overall alignment, ensuring perfect mating with both the crankshaft splines and the pinion gear. A carefully controlled heat-treatment procedure creates an ideal combination of surface hardness and core ductility, greatly enhancing resistance to wear, twisting fatigue, and deformation.
Developed as a precise aftermarket replacement, the YAMAHA 3HP Drive Shaft L (6L5-45511-01) matches original equipment standards for compatibility and function. It is designed for the majority of Yamaha 3HP outboard models (particularly those requiring the longer “L” shaft configuration), making it suitable for small fishing craft, portable boats, inflatables, and auxiliary engines. Perfect for preventive maintenance, shaft replacement due to wear or damage, or complete lower unit service, this component restores crisp throttle response and reliable power delivery.
A major benefit of this drive shaft is its excellent performance in challenging marine conditions. Advanced surface protection and material selection provide strong defense against corrosion, saltwater pitting, and surface degradation, allowing safe operation in both fresh and saltwater environments when paired with proper oil lubrication and seal maintenance. Precise manufacturing controls ensure excellent straightness and dynamic balance, which significantly reduces operational vibration, noise levels, and premature stress on bearings, seals, and gears.
Every YAMAHA 3HP Drive Shaft L (6L5-45511-01) passes comprehensive quality verification, including dimensional inspection, spline profile accuracy, surface quality assessment, and consistent hardness testing. This guarantees reliable, uniform quality for marine service centers, parts wholesalers, and aftermarket professionals. Providing outstanding value compared to genuine OEM parts, it delivers matching durability, precision fit, and service longevity at a more accessible price point.
This drive shaft represents a smart choice for boat owners and technicians looking for trustworthy, high-standard aftermarket components. Its robust construction, accurate fit, and superior fatigue resistance help minimize repair frequency, reduce overall maintenance expenses, and significantly extend the working life of Yamaha 3HP outboard engines.
FAQ – YAMAHA 3HP Drive Shaft L (6L5-45511-01)
Q1: What primary function does the YAMAHA 3HP Drive Shaft L perform?
A1: It transmits rotational power from the engine crankshaft to the lower unit gearbox and gear system.
Q2: Will this drive shaft fit all Yamaha 3HP outboard engines?
A2: It is produced to standard specifications for Yamaha 3HP models requiring the “L” (long) shaft version. Please verify exact model and year compatibility before installation.
Q3: Is this an original Yamaha part or aftermarket?
A3: It is a premium aftermarket replacement manufactured to meet or exceed original equipment specifications.
Q4: What material is the YAMAHA 3HP Drive Shaft L made from?
A4: High-strength alloy steel, specially heat-treated for optimal performance characteristics.
Q5: Is this drive shaft appropriate for saltwater operation?
A5: Yes, it performs reliably in saltwater conditions with correct lubrication and routine maintenance.
Q6: Is it advisable to have this drive shaft installed by a professional?
A6: Yes, professional installation is strongly recommended to ensure proper alignment, spline engagement, and maximum durability.
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