ECONOMY CYCLE 31K-11631-04 Khc Piston 65.0MM

( Brand: Economy Cycle ), ( Manufacturer Part Number: 31K-11631-04 ), ( Part Type: Piston ), ( Engine Type: 2-stroke ), ( Machine Type: Street Motorcycle )

Review ECONOMY CYCLE Yamaha Khc Piston Kits Pair Size 65.0mm Free Shipping fits RD350LC

Yamaha RD350LC KHC Piston - 65.0mm (Part Number: 31K-11631-04)

The Yamaha RD350LC KHC Piston is a high-quality replacement part designed specifically for the Yamaha RD350LC motorcycle. This piston, with a bore size of 65.0mm, is part of the engine's combustion chamber and plays a crucial role in the transmission of power from the engine to the wheels.

Manufactured by the renowned Korean firm, KHC, this piston is an excellent choice for motorcycle enthusiasts looking for reliable and durable parts for their Yamaha RD350LC. The piston is engineered using advanced techniques to ensure precise dimensions, ensuring a perfect fit and optimal engine performance.

The KHC piston is made of forged aluminum alloy, which offers superior strength and durability compared to cast pistons. Its design includes a skirt with a honed finish, which reduces friction and enhances piston-to-cylinder sealing. The piston crown is also designed with an optimal dome shape for efficient combustion and improved power output.

This piston kit includes the piston itself, a piston ring set, and a piston pin. The piston rings are made of high-quality, heat-resistant materials to ensure proper sealing and prevent engine oil leaks. The piston pin is made of steel and is designed to provide a secure connection between the piston and the connecting rod.

Installation of this piston kit is a straightforward process for experienced mechanics, but it is recommended to have the engine professionally checked before and after installation to ensure proper engine function. This Yamaha RD350LC KHC Piston (31K-11631-04) is an excellent investment for those seeking to restore their motorcycle to its original performance or for those who want to upgrade their engine for better power and efficiency.

The Yamaha RD 350LC KHC piston with a bore size of 65.0mm is an essential part for the Yamaha RD 350LC motorcycle. This piston is an upgrade option for those looking for better performance from their bike. Here are some pros and cons of buying this piston:

1. Enhanced Power: The larger piston size results in increased compression and, consequently, improved engine power. This can lead to better acceleration and overall performance.

2. Durability: Yamaha is a reputed brand known for manufacturing high-quality components. This piston is expected to be robust and long-lasting, providing value for money.

3. Improved Throttle Response: With increased power and efficiency, the motorcycle's throttle response is improved, allowing for smoother and more responsive acceleration.

4. Customization: For enthusiasts and hobbyists, upgrading their motorcycle's components can be a fun and rewarding experience. Installing this piston can be a way to personalize and enhance the performance of their bike.

1. Cost: Upgrading to a high-performance piston like this one can be an expensive endeavor. The cost of the piston alone might be a deterrent for some potential buyers.

2. Installation Complexity: Installing a new piston is a complex process that requires specialized tools and expertise. This could involve additional costs for labor and the risk of potential damage if not done correctly.

3. Increased Engine Noise: With improved power comes the potential for increased engine noise. This might not be desirable for all motorcycle riders, especially those who prefer a quieter ride.

4. Potential Impact on Fuel Economy: The increased power and performance could result in reduced fuel efficiency. This might not be a concern for performance-focused riders, but it's essential to consider for those who prioritize fuel economy.

In conclusion, the Yamaha RD 350LC KHC piston with a bore size of 65.0mm offers several benefits, including enhanced power, improved throttle response, and increased durability. However, it also comes with potential drawbacks, such as increased cost, installation complexity, increased engine noise, and potential impact on fuel economy.

Ultimately, the decision to buy this piston depends on individual preferences and priorities. If you're a performance-focused rider looking for improved power and throttle response, this piston could be an excellent investment. However, if you prioritize fuel economy, quieter rides, or a lower cost, other options might be more suitable. It's essential to weigh the pros and cons carefully before making a decision.

Details:

Free US Shipping. Satisfaction Guaranteed. Pair of KHC Piston Kits 65.0mm 31K-11631-04. Yamaha RD350LC All years.

Piston Kits Include. Piston, Rings, Expanded Pin, Clips. This part has been tested by Economy Cycle for fitment.

part #: 31k1163104 price

• $74.95

specifications pistondon:

• for models: Rd350lc
• for makes: Yamaha
• brand: Economy Cycle
• mpn: 31k-11631-04
• part type: Piston
• engine type: 2-stroke
• machine type: Street Motorcycle

shipping pistondon:

• type: Fixed
• carrier: USPS
• transit: 4-11 Days
• cost: $0.00
• service: USPS Ground Advantage
• class: Standard

payments pistondon:

• other
• credit card: Mastercard
• wallet: Apple-pay

general pistondon:

• MotorCycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
• condition: New

seller pistondon:

• # reviews: 3332
• city: Granbury, Texas
• rating: 100.0%

returns pistondon:

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

offer pistondon:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: November 20, 2025

Economy Cycle 31K-11631-04 Is Similar To:

• Economy Cycle 31k-11631-02 Yamaha Rd350lc Khc Piston Kits Pair Size 64.5mm Free Shipping (96.7% similar) Free us shipping. Yamaha RD350LC all years. Satisfaction guaranteed. Piston kits include. Piston, rings, expanded pin, clips. Pair of khc piston kits 64.5MM 31K-11631-02. This part has been tested by Economy Cycle for fitment...(November 20th, 2025)