J.E. PISTONS 379443 Ultra Piston Kit 3.00 84.00MM 13.5

( Brand: J.e. Pistons ), ( Manufacturer Part Number: 379443 ), ( Type: Piston Kit )

Review J.E. PISTONS Ultra Series Piston Kit Oversize 3.00mm 84.00mm 13.5

Introducing the JE Pistons 379443 Ultra piston kit, a high-performance solution for your engine build. This piston set, with part number 379443, is designed for applications requiring a 3.00-inch stroke and a piston diameter of 84.00mm, suitable for large displacement engines.

Crafted from JE's proprietary 2618-T6 aluminum alloy, these pistons ensure exceptional strength and durability. The Ultra piston design offers enhanced performance through reduced weight, allowing for increased power and improved engine response. Each piston features a unique, full-dome, flat-top design that accommodates a wide range of combustion chamber shapes and sizes.

The 13.5:1 compression ratio offered by these pistons is ideal for high-performance applications, enabling increased fuel efficiency and more power from your engine. To ensure a precise fit, these pistons come with a complementary set of rings, including a compression ring, oil control ring, and piston pin oiler ring.

JE's pistons are meticulously machined to ensure a perfect fit, with a honed skirt finish and a custom-designed piston pin bore. The piston pins are made from high-strength, low-friction material, ensuring a long-lasting, smooth-running piston-pin connection.

The Ultra piston kit comes complete with pistons, piston pins, and the aforementioned ring set. This kit is an excellent choice for engine builders seeking high-performance pistons that provide exceptional strength, reliability, and power gains. Trust JE Pistons for your engine upgrades and experience the difference that comes from using the finest components available.

A Detailed Analysis of the JE Pistons 379443 Ultra Piston 3.00 84.00mm 13.5 Kit

The JE Pistons 379443 Ultra Piston 3.00 84.00mm 13.5 kit is a popular aftermarket option for high-performance engines. This piston kit is designed for applications requiring a 3.00-inch stroke and a 84.00mm bore size. In this analysis, we will discuss the pros and cons of purchasing this piston kit to help you make an informed decision.

1. High-Quality Material: JE Pistons are known for their high-quality materials and precise manufacturing processes. The Ultra piston kit is no exception, featuring forged 2618-T6 aluminum alloy pistons and high-performance rings.

2. Enhanced Durability: The forged pistons provide superior strength and durability compared to cast pistons. This is essential in high-performance applications where the pistons will be subjected to extreme loads and temperatures.

3. Customizable: JE Pistons offers a wide range of customization options, allowing you to tailor the pistons to your specific engine and performance goals. This includes various ring packages, skirt coatings, and piston-to-liner clearances.

4. Improved Performance: The Ultra piston kit is designed to provide improved performance compared to stock pistons. This includes increased power output, better ring sealing, and reduced friction.

1. Cost: The JE Pistons Ultra piston kit is a premium product, and the cost reflects that. Compared to stock pistons or aftermarket options from other manufacturers, the price may be a significant investment for some.

2. Complex Installation: Installing the Ultra piston kit requires extensive engine disassembly and reassembly. This includes removing the crankshaft, cylinder head, and other components. It is recommended to have the installation performed by a professional to ensure proper fitment and function.

3. Potential for Noise: Some customers have reported an increase in engine noise after installing the Ultra piston kit. This is due to the reduced piston-to-liner clearances, which can result in more contact between the piston and cylinder wall.

The JE Pistons 379443 Ultra piston kit is an excellent choice for those seeking high-performance and durability in their engine. Its use of high-quality materials, customizable options, and enhanced durability make it a worthwhile investment. However, the cost and complex installation may deter some potential buyers. Ultimately, the decision to purchase the Ultra piston kit depends on your engine application, performance goals, and budget.

If you are looking for a high-performance piston kit for your engine and are willing to invest in the cost and complex installation, the JE Pistons 379443 Ultra piston kit is an excellent choice. Its superior strength, durability, and performance make it a worthwhile investment for those seeking the ultimate in engine performance. However, if you are on a tight budget or are not prepared for the complex installation process, alternative options from other manufacturers may be more suitable for your needs.

Details:

Aligned Grain Flow Technology - In-house forging has allowed JE to develop proprietary technology that directs the grain flow of aluminum around critical areas piston, increasing strength. Complete kit includes all necessary Pistons, rings, wrist pins, and wire locks under one part number. Proprietary, Molly-based dry film skirt coating is applied in-house and reduces operating friction for better wear resistance. Thermal barrier crown ceramic coating on the piston greatly reduces heat transfer into material, decreasing fatigue and improving longevity.

Two oil channels fed into the pin bore maintain proper lubrication to improve wrist and wear resistance. Lateral gas ports channel combustion gases to the back of top ring groove adding pressure behind compression keep it pushed against cylinder, providing improved and more consistent seal, critical in boosted applications. Ultra-thick ring lands aid in maintaining stability forced induction and high-horsepower N/A engines, contributing to consistent seal power. JE Pistons, FSR Ultra Series Piston Kit, 3.00mm Oversize to 84.00mm, 13.5:1 Compression, Type: Bore: Compression Ratio: 13.5:1, Sold as: Kit.

Any damage claims may be exchanged for the identical item only.

part #: 379443 prices

• $1099.75-$1169.95

specifications pistondon:

• brand: J.e. Pistons
• mpn: 379443
• type: Piston Kit

returns pistondon:

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

general pistondon:

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

payments pistondon:

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

seller pistondon:

• city: Loudon, Tennessee
• rating: 98.9%
• # reviews: 567089

shipping pistondon:

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

offer pistondon:

• availability: In Stock
• sold: 0
• quantity: 7
• options: Ship-to-home
• started: April 9, 2025

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