HARLEY-DAVIDSON 16800407 Highlighted Cylinders Big Kit 4.31

( Brand: Harley-davidson ), ( Manufacturer Part Number: 16800407 ), ( Machine Type: Street Motorcycle ), ( Items Included: Pictured ), ( Piston Diameter: 4.310 ), ( Vintage Part: No ), ( Harley Big Bore 114: 131 135 ), ( Engine Type: 4-stroke ), ( Type: 4.310 Front Rear Cylinders ), ( Cylinder Bore Diameter: 4.075 In ), ( Country Of Origin: United States ), ( Performance Part: Yes )

Review HARLEY DAVIDSON New Black machine Highlighted Cylinders 4.31 Big Bore Kit fits M8

Introducing the Harley-Davidson Black Machine Highlighted Cylinders 4.31 Big Kit M8, a unique and captivating enhancement for your Harley-Davidson engine. This kit is specifically designed for those who want to add a touch of excellence to their Harley-Davidson motorcycle.

The Black Machine Highlighted Cylinders 4.31 Big Kit M8 is an aftermarket accessory that transforms the appearance of your engine. The kit includes four cylinder covers, each one meticulously crafted with a sleek black powder-coated finish. The high-gloss black color not only looks stunning but also provides an extra layer of protection against the elements.

Each cylinder cover is designed to fit perfectly with the factory Harley-Davidson engine. The covers are made from durable materials that are resistant to heat, oil, and other harsh engine conditions. The edges of the covers are smooth and rounded, ensuring a seamless fit and finish.

One of the standout features of this kit is the highlighted cylinder design. Each cover includes precision-cut, chrome-plated cylinder highlight pieces that add a touch of elegance and sophistication to your engine. The highlights reflect light, drawing attention to the cylinders and creating a stunning visual effect.

Installing the Black Machine Highlighted Cylinders 4.31 Big Kit M8 is a straightforward process. The kit comes with all the necessary hardware, including hex head screws and torque specs, to ensure a secure and proper installation. The covers can be installed without removing the engine from the frame, making the installation process more convenient and time-efficient.

In summary, the Harley-Davidson Black Machine Highlighted Cylinders 4.31 Big Kit M8 is an excellent investment for any Harley-Davidson motorcycle owner. The sleek black powder-coated finish and precision-cut, chrome-plated cylinder highlights add a touch of elegance and sophistication to your engine, making it a standout feature of your bike. The installation process is simple and can be done without removing the engine from the frame. Upgrade your Harley-Davidson engine today with the Black Machine Highlighted Cylinders 4.31 Big Kit M8.

Pros and Cons of Buying Harley-Davidson 16800407 Black Machine Highlighted Cylinders 4.31 Big Kit M8

The Harley-Davidson 16800407 Black Machine Highlighted Cylinders 4.31 Big Kit M8 is an aftermarket upgrade designed to enhance the visual appeal and performance of Harley-Davidson motorcycles. Here are some potential advantages and disadvantages of purchasing this kit.

1. Aesthetics: This kit significantly improves the appearance of your Harley-Davidson motorcycle by adding a unique and striking design to the cylinders, making your bike stand out from the crowd.

2. Performance: The kit includes high-performance cylinder heads and pistons that can potentially increase horsepower and torque, leading to improved acceleration and overall riding experience.

3. Durability: The upgraded cylinders and pistons in this kit are designed to be more robust and resilient, which can extend the lifespan of your engine and reduce the need for frequent repairs.

1. Cost: The Harley-Davidson 16800407 Black Machine Highlighted Cylinders 4.31 Big Kit M8 is a premium aftermarket upgrade, and the cost may be prohibitive for some motorcycle owners.

2. Complex Installation: The installation process for this kit can be complex and time-consuming, requiring specialized tools and a high level of mechanical expertise.

3. Potential Compatibility Issues: This kit is designed specifically for Harley-Davidson motorcycles, but there may be compatibility issues with certain models or engines. It is essential to verify that the kit is compatible with your bike before purchasing.

The Harley-Davidson 16800407 Black Machine Highlighted Cylinders 4.31 Big Kit M8 is an attractive aftermarket upgrade that offers both aesthetic and performance benefits. However, the high cost, complex installation, and potential compatibility issues may deter some motorcycle owners. Ultimately, the decision to purchase this kit depends on your budget, technical abilities, and desire for a visually striking and enhanced riding experience.

If you are an experienced Harley-Davidson motorcycle owner with a good mechanical background and the budget for a premium upgrade, the Harley-Davidson 16800407 Black Machine Highlighted Cylinders 4.31 Big Kit M8 can be an excellent investment for improved performance and a unique, eye-catching appearance. However, if you are uncertain about the installation process or have compatibility concerns, it is recommended to consult with a Harley-Davidson dealership or professional mechanic before making a purchase.

Details:

Replacement cylinders for '23-Later FLHXSE and FLTRXSE '24-later FLHX, FLTRX, FLTRXSTSE model's equipped with a 131ci/135ci Stage IV kit or 135ci Crate Engine. Screaming Eagle Parts, Harley Davidson, M8 Milwaukee 8 HDMC. Black Highlighted. HARLEY DAVIDSON M8 FRONT REAR BLACK - MACHINE HIGHLIGHTED CYLINDERS 2.

In the Box: Front and rear cylinders, gaskets installation instructions. Harley-Davidson motorcycles modified with some Screaming Eagle Performance products must not be used on public roads and, in cases, may restricted to closed-course competition. Sold In Units: Pair. ECM Calibration required: Yes.

The Screaming Eagle product team has engineered a patent protected 4.31 Big Bore Cylinder that increases the internal bore but slips into existing case without modification. Dealer Install Recommended: Yes. Screaming Eagle products are not available for sale and street legal in all countries. Increase the displacement of your Milwaukee-Eight engine without removing from chassis.

Kit includes front and rear cylinders gaskets.

part #: 16800407 price

• $799.99

specifications pistondon:

• for models: M8
• for makes: Harley
• brand: Harley-davidson
• mpn: 16800407
• machine type: Street Motorcycle
• items included: Pictured
• piston diameter: 4.310
• vintage part: No
• harley big bore 114: 131 135
• engine type: 4-stroke
• type: 4.310 Front Rear Cylinders
• cylinder bore diameter: 4.075 In
• country of origin: United States
• performance part: Yes

shipping pistondon:

• service: UPS Ground
• cost: $48.00
• type: Fixed
• class: Standard
• carrier: UPS
• transit: 3-6 Days

general pistondon:

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

offer pistondon:

• sold: 0
• availability: In Stock
• started: April 24, 2026
• quantity: 1
• options: Ship-to-home

payments pistondon:

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

seller pistondon:

• # reviews: 345
• rating: 99.2%
• city: Terryville, Connecticut

returns pistondon:

• policy: Returns Accepted
• paid by: Seller
• time: 14 Days

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