WISECO MN-J863 Piston Kit Flhb Qy MN/J863

( Brand: Wiseco ), ( Manufacturer Part Number: MN/J863 ), ( Type: K Piston Kits ), ( Compatible Year: 1969 1968 1967 1966 1965 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Flhb Electra Glide ), ( Bundle Description: 1 Pc Genuine Wiseco K Piston Kits ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review WISECO Mn/j863 Piston Kit For Harley Davidson Flhb Qy fits ELECTRA GLIDE 1965–1969

The WiseCO MN/J863 piston kit is a premium aftermarket solution designed specifically for the 1965-1969 Harley-Davidson FLHB Electra Glide models with the iconic 45 cubic inch V-twin engine. This piston kit is an excellent upgrade for riders seeking improved performance and durability for their classic motorcycle.

The pistons in this kit are forged from high-quality aluminum alloy, which offers superior strength and reliability compared to stock pistons. The forged design ensures a more precise fit within the engine cylinder, reducing the likelihood of piston-to-wall contact and resulting in a smoother engine operation. Each piston is carefully machined to ensure a perfect fit and finish, with a honed crown surface that enhances combustion efficiency and power output.

The piston kit also includes new piston rings. These rings are made from a high-tensile, heat-resistant material that ensures a tight seal within the cylinder, reducing the potential for combustion gases to leak past the rings and into the crankcase. This results in improved engine efficiency, increased power output, and better fuel economy.

Additionally, the piston kit includes new wrist pins and clips. The wrist pins are made from chrome-molybdenum steel, which offers superior strength and durability. The clips are precision-machined to ensure a secure fit and easy installation.

The MN/J863 piston kit is designed to be a direct replacement for the stock pistons, making installation simple and straightforward. Each piston is marked with its corresponding number, ensuring that they are installed in the proper order. The kit also includes new gaskets and seals to ensure a leak-free installation.

In summary, the WiseCO MN/J863 piston kit is an excellent upgrade for riders of 1965-1969 Harley-Davidson FLHB Electra Glide models. With high-quality forged pistons, durable rings, strong wrist pins, and easy installation, this kit offers improved performance, reliability, and peace of mind for classic motorcycle enthusiasts.

The Wiseco MN/J863 piston kit is a popular upgrade option for the 1965-1969 Harley-Davidson FLHB Electra Glide models. Here are some pros and cons to consider before making a purchase:

1. Enhanced Performance: The Wiseco pistons are designed to provide improved combustion efficiency, resulting in increased horsepower and torque. This can lead to a smoother and more responsive ride.

2. Durability: Wiseco pistons are known for their high-quality materials and manufacturing processes. They are designed to withstand the rigors of high-performance applications, making them a durable option for upgrading your Harley-Davidson.

3. Customizability: The Wiseco MN/J863 kit offers several options for piston dome sizes, allowing you to tailor the kit to your specific riding style and engine configuration.

4. Compatibility: The piston kit is specifically designed for the Harley-Davidson FLHB Electra Glide models, ensuring a perfect fit and easy installation.

5. Improved Appearance: Upgrading to high-performance pistons can add a desirable visual appeal to your motorcycle, making it a great option for those looking to enhance the appearance of their bike as well as its performance.

1. Cost: The Wiseco piston kit is a premium upgrade option, and the cost may be a deterrent for some riders. However, the performance and durability benefits may justify the investment for those who use their bikes extensively or for high-performance applications.

2. Installation: Installing the piston kit requires some mechanical knowledge and skill. It is recommended that the installation be performed by a professional mechanic to ensure proper fitment and function.

3. Potential Engine Noise: Upgrading to high-performance pistons can result in increased engine noise, which may not be desirable for all riders. However, this can be mitigated by proper engine tuning and the use of high-quality aftermarket components.

The Wiseco MN/J863 piston kit offers several benefits for those looking to upgrade the performance and durability of their 1965-1969 Harley-Davidson FLHB Electra Glide models. While the cost may be a deterrent for some, the potential performance gains and improved durability make it a worthwhile investment for those who use their bikes extensively or for high-performance applications. It is important to note that installation should be performed by a professional mechanic to ensure proper fitment and function.

If you are looking to upgrade the performance and durability of your 1965-1969 Harley-Davidson FLHB Electra Glide model, the Wiseco MN/J863 piston kit is a great option to consider. It offers several benefits, including improved combustion efficiency, high-quality materials, customizability, compatibility, and enhanced appearance. However, it is important to note that the cost may be a deterrent for some, and installation should be performed by a professional mechanic. We recommend carefully considering the benefits and potential drawbacks before making a purchase.

Details:

Domed - .040in. Wiseco K Piston Kit for 1965-1969 Harley Davidson FLHB Electra Glide - qy: Status: In Stock. Oversize to 3.477in. K Piston Kit 74ci.

part #: mnj863 prices

• $63.13-$361.44

specifications pistondon:

• for models: Electra, Glide
• for makes: Harley, Davidson
• for years: 1965-1969
• brand: Wiseco
• mpn: Mn/j863
• type: K Piston Kits
• compatible year: 1969 1968 1967 1966 1965
• compatible make: Harley Davidson
• compatible model: Flhb Electra Glide
• bundle description: 1 Pc Genuine Wiseco K Piston Kits
• core charge: Free No Core Charge
• fitment type: Direct Replacement

shipping pistondon:

• cost: $0.00
• class: Standard
• service: Standard
• transit: 2-6 Days
• type: Fixed

general pistondon:

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

payments pistondon:

• other
• wallet: Apple-pay
• credit card: Diners-club

seller pistondon:

• # reviews: 17686
• rating: 98.8%
• city: Multiple warehouses

offer pistondon:

• options: Ship-to-home
• started: February 19, 2026
• availability: In Stock
• quantity: 1
• sold: 0

returns pistondon:

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

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