YAMAHA 4JH-11631-00-00 Engine Motor Block Piston

( Manufacturer Part Number: 4JH-11631-00-00 ), ( Country Of Origin: Japan ), ( Type: Piston )

Review YAMAHA Oem Engine Motor Block Piston fits YZF600R 2002

The Yamaha YZF600R engine motor block, model number 4JH-11631-00-00, is a high-performance component engineered for use in the YZF600R motorcycle. This motor block is a critical part of the engine, providing the foundation for the cylinders, pistons, and crankshaft.

This motor block is made of an aluminum alloy, which is lightweight yet strong, reducing the overall weight of the engine while maintaining its durability. The design of the motor block features a wet sump oil system, which helps to keep the engine cool and lubricated, ensuring optimal performance.

The cylinder bores of this motor block are precision machined to ensure a perfect fit for the pistons, ensuring that the engine runs smoothly and efficiently. The cylinder walls are also coated with a special Nikasil plating, which helps to reduce friction and increase the lifespan of the engine.

The pistons that come with this motor block are designed to work in harmony with the motor block, providing the necessary compression and power to the engine. They are made of a high-strength aluminum alloy and are coated with a thermal barrier coating to help reduce heat transfer and improve combustion efficiency.

This motor block is also designed to be compatible with the YZF600R's fuel injection system, which helps to ensure optimal fuel delivery and efficient combustion. The engine block also features a water jackets design that helps to dissipate heat and keep the engine running at optimal temperatures.

Overall, the Yamaha YZF600R engine motor block, model number 4JH-11631-00-00, is a high-quality component that is essential for the proper functioning of the motorcycle's engine. Its lightweight, strong design, precision machining, and compatibility with the fuel injection system make it a valuable addition to any YZF600R motorcycle.

The Yamaha YZF600R engine, specifically the motor block, piston part numbered 4JH-11631-00-00, was produced in 2002. Here are some pros and cons to consider if you're thinking about purchasing this motor block piston:

1. High-performance engine: The YZF600R is a well-known sports bike with a powerful and responsive engine, making it a popular choice among motorcycle enthusiasts.

2. Availability of parts: Since the YZF600R is an older model but still popular, you can easily find replacement parts like the motor block piston online or at a local motorcycle dealership.

3. Cost-effective: Compared to buying a new motorcycle or even a new engine, purchasing a replacement motor block piston can save you a significant amount of money.

1. Wear and tear: If the motor block piston is worn out or damaged, it can lead to engine problems such as loss of power, rough running, or even engine failure.

2. Labor costs: Installing a new motor block piston requires specialized knowledge and tools, so labor costs can add up.

3. Quality concerns: When purchasing aftermarket parts, there's always a risk of receiving a low-quality product that may not perform as well as the original part.

Buying a Yamaha YZF600R motor block piston, part number 4JH-11631-00-00, can be a cost-effective solution for repairing a damaged engine, but it's essential to consider the potential risks and costs involved. Make sure to purchase the part from a reputable dealer or supplier, and be prepared for labor costs. If the motorcycle is no longer economically feasible to repair, it may be time to consider other options, such as selling the bike or buying a new one.

If you've determined that the motor block piston on your Yamaha YZF600R is the source of your engine problems, and you've weighed the pros and cons, I would recommend purchasing a high-quality replacement motor block piston from a reputable dealer or supplier. Make sure to ask about any warranties or guarantees that come with the part, and be prepared for labor costs. If the repair costs are too high, it may be time to consider other options, such as selling the bike or buying a new one.

Details:

2002 YAMAHA YZF600R OEM ENGINE MOTOR BLOCK PISTON, PROBLEM. MISSING CLIP, Removed From: 2002 Yamaha YZF600R with miles, Please review all pictures to assess the condition of item. M-force race crafts.

part #: 4jh116310000 price

• $19.95

specifications pistondon:

• for models: Yzf600r
• for makes: Yamaha
• for years: 2002
• mpn: 4jh-11631-00-00
• country of origin: Japan
• type: Piston

offer pistondon:

• best offers: True
• availability: In Stock
• options: Ship-to-home
• started: March 17, 2026
• quantity: 1
• sold: 0

seller pistondon:

• # reviews: 1349
• city: Las Vegas, Nevada
• rating: 99.6%

shipping pistondon:

• service: Standard
• class: Standard
• transit: 3-9 Days
• type: Fixed
• cost: $0.00

general pistondon:

• condition: Used
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits

returns pistondon:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

payments pistondon:

• other
• credit card: Discover
• wallet: Google-pay

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