YAMAHA 3HP Drive Shaft S

Constructed from premium high-tensile alloy steel, the shaft is built to handle repeated twisting forces, sudden torque spikes, and the challenging conditions typical of marine use. Utilizing state-of-the-art CNC machining, it achieves exact tolerances for diameter, spline geometry, and overall straightness, ensuring flawless mating with both the crankshaft and pinion gear. A carefully controlled heat-treatment process optimizes surface hardness while preserving excellent core toughness, greatly enhancing resistance to wear, fatigue, and deformation.

Created as a premium aftermarket replacement, the YAMAHA 3HP Drive Shaft S (6L5-45511-00) matches original factory specifications for perfect fit and reliable operation. It is compatible with the majority of standard Yamaha 3HP outboard models (both 2-stroke and 4-stroke versions), making it an excellent choice for small fishing craft, inflatables, dinghies, and portable auxiliary engines. Whether used during regular service, gearcase repair, or complete lower unit restoration, this shaft returns smooth, efficient power delivery.

Particularly well-suited to tough marine conditions, the shaft features advanced surface protection that resists corrosion, saltwater pitting, and premature degradation—provided it receives proper lubrication and routine care. Precise manufacturing controls for balance and alignment significantly decrease operational vibration and noise while helping protect adjacent components such as bearings, seals, and gears from excessive stress and wear.

Every YAMAHA 3HP Drive Shaft S (6L5-45511-00) is subjected to thorough quality verification, including inspections of straightness, spline precision, surface quality, and hardness uniformity. This guarantees consistent performance that marine service professionals, parts distributors, and aftermarket suppliers can trust. Delivering outstanding value compared to genuine OEM components, it provides comparable durability, accuracy, and service life at a more accessible price point.

The YAMAHA 3HP Drive Shaft S (6L5-45511-00) represents a smart, dependable choice for boat owners and technicians looking for high-quality aftermarket parts that conform to international standards. Its robust construction, exact fit, and excellent longevity help minimize repair frequency, reduce overall maintenance expenses, and significantly extend the working life of Yamaha 3HP outboard motors.

FAQ – YAMAHA 3HP Drive Shaft S (6L5-45511-00)

Q1: What does the YAMAHA 3HP Drive Shaft S primarily do?

A1: It transmits rotational power from the engine crankshaft to the lower unit gearbox for propeller operation.

Q2: Will this drive shaft fit all Yamaha 3HP outboard models?

A2: It is produced to standard Yamaha 3HP specifications. Please confirm compatibility with your particular model year and version 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 standards.

Q4: What material is the YAMAHA 3HP Drive Shaft S made from?

A4: High-strength alloy steel, enhanced by specialized professional heat treatment.

Q5: Is it suitable for use in saltwater environments?

A5: Yes, it performs reliably in saltwater conditions when properly lubricated and regularly maintained.

Q6: Should installation be done by a professional?

A6: Yes, professional installation is strongly recommended to achieve correct alignment, proper sealing, and maximum performance.

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