JE PISTONS 78R40JPT6U Piston Kit Rings Pins Cvo 3.937IN

( Brand: Je Pistons ), ( Manufacturer Part Number: 78R40JPT6U ), ( Type: Piston Kit ), ( Cylinder Bore Diameter: 3.937 In ), ( Material: Forged ), ( California Prop 65 Warning: Warning, And Birth Defects Or Other Reproductive Harm. ), ( Item Weight: 3.1100 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Road Glide Custom Cvo ), ( Riding Style: Street Motorcycle, Street ), ( Package Quantity: Each ), ( Wrist Pin Bearing Included: Yes )

Review JE PISTONS Piston Kit Rings Pins 3.937in Bore Custom Cvo fits ROAD GLIDE M8 STD 2018–2019

Introducing the JE Pistons 78R40JPT6U Piston Kit, specifically designed for Harley-Davidson Road Glide CVO models from 2018 and 2019. This premium piston kit includes not only the pistons themselves but also the necessary rings and pins, ensuring a complete and comprehensive upgrade for your engine.

The pistons in this kit are meticulously crafted using JE's proprietary forging process. This technique results in pistons that offer superior strength and durability, allowing them to withstand the rigors of high-performance riding. The pistons are also designed to provide optimal compression height and piston-to-wall clearance for optimal engine performance.

The piston rings in this kit are made from high-quality, heat-resistant materials. They are precision-engineered to provide a perfect seal in the cylinder bore, reducing compressive and expansive losses and ensuring optimal combustion efficiency. The piston rings are also designed to minimize friction, reducing wear on the piston skirts and cylinder bore.

The piston pins in this kit are made from high-strength steel and are precision-machined to ensure a perfect fit in the piston and connecting rod. They are also designed to provide optimal clearance between the piston and crankshaft, reducing friction and wear.

This piston kit utilizes standard 3.937-inch piston length and M8 threading for easy installation. The piston kit is compatible with the Harley-Davidson Road Glide CVO models from 2018 and 2019, making it an ideal upgrade for riders looking to enhance the performance of their motorcycle.

In summary, the JE Pistons 78R40JPT6U Piston Kit is a top-quality upgrade for Harley-Davidson Road Glide CVO models from 2018 and 2019. It includes all the necessary components for a complete piston upgrade, including pistons, rings, and pins, and is designed to provide superior strength, durability, and performance for your motorcycle.

Buying the Je Pistons 78R40JPT6U piston kit, which includes rings, pins, and m8 std 3.937in for a Road Glide CVO 18-19 model Harley-Davidson motorcycle, can offer several advantages and potential drawbacks. Here are some pros and cons to consider before making a purchase.

1. OEM Quality: These pistons are manufactured by Je Pistons, a well-known supplier of original equipment (OEM) pistons for Harley-Davidson. By choosing an OEM piston kit, you can ensure that the parts are designed to meet the exact specifications of your motorcycle.

2. Improved Performance: Upgrading to new pistons can lead to increased power and torque, resulting in better overall performance and a smoother riding experience.

3. Longer Engine Life: Worn-out pistons can cause damage to other engine components, leading to costly repairs. Replacing the pistons with new ones can help prevent these issues and extend the life of your engine.

4. Peace of Mind: Installing new pistons can give you peace of mind knowing that your engine is in good condition and less likely to experience unexpected failures.

1. Cost: Replacing the pistons in a Harley-Davidson motorcycle can be an expensive proposition. The cost of the Je Pistons 78R40JPT6U kit, along with the labor costs of installation, can be a significant investment.

2. Installation Complexity: Installing new pistons is a complex process that requires specialized tools and expertise. If you're not comfortable doing the work yourself, you'll need to pay for labor costs, which can add to the overall cost of the project.

3. Potential for Damage: During the installation process, there's a risk of damaging other engine components or causing other issues. It's essential to work with a qualified technician to minimize the risk of damage.

In conclusion, the decision to buy the Je Pistons 78R40JPT6U piston kit for your Road Glide CVO 18-19 Harley-Davidson motorcycle depends on your priorities and budget. If you value performance improvements, long engine life, and peace of mind, the investment in new pistons may be worthwhile. However, if the cost and installation complexity are concerns, you may want to consider other options, such as regular maintenance or waiting until a more significant issue arises before making the upgrade. Ultimately, it's essential to weigh the pros and cons carefully and consult with a qualified Harley-Davidson technician to help you make an informed decision.

Details:

Sold in Units of: Kit. Piston Type: Machined. Any fitment provided is for US Spec model's. Made in the USA.

JE Piston Kit Rings Pins M8 STD 3.937in Bore 11:1 was expertly forged and crafted to ensure that it stands up the toughest tests. Item must be in original undamaged unopened packaging. Dome/ dish features smooth flowing radii; require no debarring or preparation. When performance matters, the JE Piston Kit should be your go-to solution for upgrading engine.

Material: Forged. Piston Skirt Coated: Yes. All JE Pistons are designed, forged, and machined in-house to ensure total control quality in every step of the process. Wrist Pin Bearing Included: Yes.

Riding Style: Street Motorcycle. Piston making has been in the Hahn family for longer than sliced bread sold, since 1912 when JE Pistons founders father ran a foundry with tagline Nothing but. Use our shipping packaging to ship back the item, DO NOT tape label directly original manufacturers box.

NOTE: For M-Eight 107 4.375 Stroke. Machined from 2618-T6 high tensile forged aluminum.

part #: 78r40jpt6u price

• $435.84

specifications pistondon:

• for models: M8, Std, Road, Glide
• for years: 2018-2019
• brand: Je Pistons
• mpn: 78r40jpt6u
• type: Piston Kit
• cylinder bore diameter: 3.937 In
• material: Forged
• california prop 65 warning: Warning, And Birth Defects Or Other Reproductive Harm.
• item weight: 3.1100
• compatible make: Harley Davidson
• compatible model: Road Glide Custom Cvo
• riding style: Street Motorcycle, Street
• package quantity: Each
• wrist pin bearing included: Yes

payments pistondon:

• other
• credit card: Discover
• wallet: Paypal

shipping pistondon:

• service: Standard
• type: Fixed
• transit: 2-7 Days
• cost: $0.00
• class: Standard

returns pistondon:

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

general pistondon:

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

offer pistondon:

• started: February 11, 2026
• options: Ship-to-home
• sold: 0
• quantity: 1
• availability: In Stock

seller pistondon:

• rating: 99.5%
• city: Parkersburg, West Virginia
• # reviews: 28200

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