6H4-11400-10-00 YAMAHA Wsm Oil Injection Gear Crankshaft

Review YAMAHA Wsm 40/50 Hp Oil Injection Gear Crankshaft

The Yamaha WSM 6H4-11400-10-00 40/50 HP Oil Injection Gear Crankshaft (model number 850-315WSM) is a crucial component for the efficient operation of your Yamaha outboard engine. This crankshaft is designed for use in 40 and 50 HP WaveRunner SHO (Super High Output) engines, bringing power and durability to your watercraft.

This crankshaft is a key part of the engine's powertrain and is responsible for converting the reciprocating motion of the pistons into rotational force, which ultimately propels the watercraft forward. The oil injection system integrated into this crankshaft ensures that the engine's piston rings and cylinder walls are consistently lubricated, reducing friction and wear, and contributing to the engine's longevity.

The 850-315WSM crankshaft is precision-machined from high-strength materials to ensure maximum durability and reliability. Its robust design allows it to withstand the demanding conditions of high-performance water sports, making it a popular choice among enthusiasts who value power, speed, and durability.

The oil injection system on this crankshaft utilizes a high-pressure oil pump to deliver oil directly to the piston rings and cylinder walls. This design helps to maintain consistent lubrication, even during heavy usage, ensuring optimal engine performance and reducing the need for frequent maintenance.

Additionally, this crankshaft comes with a robust bearing system that includes a large diameter main bearing and a high-capacity intermediate bearing. These bearings are designed to distribute loads evenly, reducing stress and heat buildup, and contributing to the engine's overall efficiency and reliability.

The Yamaha WSM 6H4-11400-10-00 40/50 HP Oil Injection Gear Crankshaft (model number 850-315WSM) is a high-performance component that plays a vital role in the operation of your Yamaha outboard engine. Its robust design, integrated oil injection system, and high-capacity bearing system ensure consistent performance, durability, and reliability, making it an excellent investment for watercraft enthusiasts who demand the best from their equipment.

Pros and Cons of Buying Yamaha WSM 6H4-11400-10-00 40/50 HP Oil Injection Gear Crankshaft 850-315wsm

a. High Power Output: This crankshaft is designed for high-performance applications, delivering 40/50 HP.

b. Oil Injection System: The oil injection system helps reduce emissions and prolong engine life by providing lubrication directly to the piston crowns.

c. Durability: Yamaha is known for its robust and reliable engines. This crankshaft is no exception, built to withstand heavy use.

d. Easy Installation: This crankshaft is a direct replacement for the stock crankshaft, making installation relatively straightforward.

a. Price: This crankshaft is a premium upgrade, and its price reflects its high-performance capabilities.

b. Not Suitable for All Applications: This crankshaft is designed specifically for the Yamaha WSM series, making it a less versatile option compared to other crankshafts on the market.

c. Requires Professional Installation: Installing this crankshaft requires specialized knowledge and tools, making it a job best left to professionals.

The Yamaha WSM 6H4-11400-10-00 40/50 HP Oil Injection Gear Crankshaft 850-315wsm is a high-performance upgrade for those seeking increased power and durability from their Yamaha WSM engine. Its oil injection system reduces emissions and prolongs engine life. However, its premium price, limited application, and professional installation requirements are considerations that must be weighed against its benefits.

If you are looking for a high-performance upgrade for your Yamaha WSM engine, this crankshaft is an excellent choice due to its power output and oil injection system. However, carefully consider the costs, installation requirements, and limitations before making a purchase. If you are unsure, consult with a professional mechanic for their expert advice.

Details:

Enjoy and safe riding. Yamaha, Yamaha 40 / 50 hp w/oil injection gear, new crankshaft, oem: 6H4-11400-10-00 6h4-11400-11-00 6h4-11400-12-00 6h4-11400-13-00 6h4-11400-14-00 850-315WSM, all 3 Cl 2.638 bore 1984 -2006 1984 -2008 jet 1991 -2001.

specifications watercraftimp:

• brand: Yamaha
• mpn: 6h4-11400-10-00
• part type: Oil Hp Gear Crankshaft

seller watercraftimp:

• rating: 99.0%
• city: thief river falls, minnesota
• # reviews: 1663

offer watercraftimp:

• sold #: 28
• prices: $350.00–$897.97
• item condition:
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• started: april 2, 2025
• in stock #: 5
• options: ship-to-home
• best offers: true
• availability: in stock

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• category: Watercraft Parts > Engines, Impellers Component > Complete

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