J.E. PISTONS 379438 Fsr Ultra Piston Kit 3.00MM To 84.00MM

( Brand: J.e. Pistons ), ( Manufacturer Part Number: 379438 ), ( Type: Engine ), ( Country/region Of Manufacture: United States ), ( Manufacturer Warranty: 1 Year Manufacturer Warranty ), ( California Prop 65 Warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov ), ( Authorized Dealer: Yes ), ( Bore: 84.00mm ), ( Compatibility Disclaimer: Compatibility Chart Information Provided By ), ( Compression: 13.5 ), ( Legal Disclaimer: Your Local Laws Before Purchasing. ), ( Photo Disclaimer: For Reference Only, May Differ From Product, See Item Details. ), ( Sizing: 3.00mm Oversize ), ( Vehicletype: Street )

Review J.E. PISTONS Fsr Ultra Series Piston Kit 3.00mm Oversize To 84.00mm fits 2013

Introducing the J.E. Pistons 379438 FSR Ultra Piston Kit, specifically designed for applications requiring a piston with a 3.00mm compression height and an 84.00mm piston diameter, as well as a stroke length of 13mm. This piston kit is a perfect upgrade for high-performance engines seeking superior strength, reliability, and power.

Manufactured using J.E. Pistons' advanced forged 2618-T6 aluminum alloy, this piston kit delivers exceptional strength and durability. The piston crown is engineered with a precision-machined dish and combustion bowl to ensure optimal combustion efficiency and power output. The piston skirt boasts a full-floating design, which minimizes friction and wear, ensuring a long-lasting, smooth-running engine.

The FSR Ultra piston kit features J.E. Pistons' exclusive Fire Ring System, which consists of a high-temperature, low-friction, and high-strength fire ring. This innovative design prevents piston-to-bore contact during engine operation, reducing heat transfer and minimizing the risk of detonation.

Additionally, the piston kit includes J.E. Pistons' proprietary Wrist Pin Bushing System, which utilizes a bushing made from a high-performance material that provides excellent wear resistance and durability. This system ensures a secure and reliable connection between the piston and connecting rod, contributing to the overall strength and reliability of the engine.

The J.E. Pistons 379438 FSR Ultra Piston Kit is designed to fit engines with a 13mm stroke length and a 3.00mm compression height, making it an excellent choice for high-performance applications where power, strength, and reliability are essential. This piston kit is backed by J.E. Pistons' industry-leading warranty, ensuring peace of mind for engine builders and enthusiasts alike. Upgrade your engine with the J.E. Pistons 379438 FSR Ultra Piston Kit and experience the difference in power, reliability, and performance.

A Comprehensive Analysis of the JE Pistons 379438 FSR Ultra Piston Kit (3.00mm 84.00mm 13)

The JE Pistons 379438 FSR Ultra piston kit is a popular aftermarket option for engine builders and performance enthusiasts. This piston kit is designed for applications with a 3.00mm compression height, 84.00mm bore size, and a stroke length of 13 inches. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this piston kit.

1. High-Performance Design: The JE Pistons 379438 FSR Ultra piston kit is designed for high-performance applications. It features a forged design, which provides increased strength and durability compared to cast pistons.

2. Precision Manufacturing: JE Pistons is known for its precision manufacturing processes. Each piston is machined to tight tolerances, ensuring optimal fit and function within the engine.

3. Customizable Options: JE Pistons offers a wide range of customizable options for its piston kits, including different ring packages, skirt coatings, and top ring groove sizes.

4. OEM Replacement: This piston kit can serve as an OEM replacement for various applications, ensuring that the engine runs efficiently and reliably.

1. Cost: The JE Pistons 379438 FSR Ultra piston kit is not an inexpensive option. Its high-performance design and customizable features come with a premium price tag.

2. Complex Installation: Installing aftermarket pistons can be a complex and time-consuming process. It requires specialized tools and a high level of skill to ensure proper installation.

3. Potential Clearance Issues: Depending on the specific engine application, clearance issues may arise when installing aftermarket pistons. Proper clearance must be maintained between the piston and engine components to ensure proper function.

The JE Pistons 379438 FSR Ultra piston kit offers several advantages for high-performance applications, including its forged design, precision manufacturing, customizable options, and OEM replacement capabilities. However, its cost and complex installation process may deter some potential buyers. Ultimately, the decision to purchase this piston kit depends on the specific application requirements, budget, and installation capabilities.

If you are building a high-performance engine and are looking for a top-quality piston kit, the JE Pistons 379438 FSR Ultra piston kit is an excellent choice. Its forged design, precision manufacturing, and customizable options make it a popular choice among engine builders. However, be prepared for the premium price tag and the complex installation process. If the cost is a concern, consider exploring alternative options with similar specifications but at a lower price point.

Details:

Double pin boilers - two oil channels feed into the bore to maintain proper lubrication improve wrist and wear resistance. Ultra-thick ring lands aid in maintaining stability forced induction and high-horsepower N/A engines, contributing to consistent seal power. Vehicle Fitment: 1999 2007 fits SUZ GSX1300R Hayes, 2006 Hayes Limited Edition In-house forging has allowed JE to develop proprietary Aligned Grain Flow Technology that directs the grain flow of aluminum around critical areas piston, increasing strength. Bore: 84.00mm, Compression: 13.5:1 Compression, Sizing: 3.00mm Oversize, 1397cc.

Lateral gas ports channel combustion gases to the back of top ring groove, which adds pressure behind compression keep it pushed against cylinder, providing improved and more consistent seal, critical in boosted applications. Tiff Skirt - a proprietary, Molly-based dry film skirt coating is applied in-house and reduces operating friction for better wear resistance. Thermal Barrier Crown Coating - a ceramic coating on the piston crown greatly reduces heat transfer into material, decreasing fatigue and improving longevity. Sold as a complete kit with all necessary Pistons, rings, wrist pins and wire locks under one part number.

part #: 379438 prices

• $1198.49-$1274.99

specifications pistondon:

• for years: 2013
• brand: J.e. Pistons
• mpn: 379438
• type: Engine
• country/region of manufacture: United States
• manufacturer warranty: 1 Year Manufacturer Warranty
• california prop 65 warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov
• authorized dealer: Yes
• bore: 84.00mm
• compatibility disclaimer: Compatibility Chart Information Provided By
• compression: 13.5
• legal disclaimer: Your Local Laws Before Purchasing.
• photo disclaimer: For Reference Only, May Differ From Product, See Item Details.
• sizing: 3.00mm Oversize
• vehicletype: Street

general pistondon:

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

payments pistondon:

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

seller pistondon:

• # reviews: 176401
• city: Cedar Park, Texas
• rating: 97.9%

offer pistondon:

• sold: 0
• options: Ship-to-home
• started: July 19, 2025
• best offers: True
• quantity: 2
• availability: In Stock

returns pistondon:

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

shipping pistondon:

• class: Expedited, Standard
• transit: 4-9 Days
• cost: $0.00
• service: Expedited, Standard
• type: Fixed

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