J.E. PISTONS 379437 Ultra Piston Kit

( Brand: J.e. Pistons ), ( Manufacturer Part Number: 379437 ), ( Part Type: Piston ), ( Bore Oversize: 2, 00 Mm ), ( Bore Oversize 2: 2.00 Mm ), ( Bore Size: 83.00 Mm ), ( Carb: May Not Be Able To Ship To Ca Or Other States ), ( Compression Ratio: 13.5 ), ( Units: Kit ), ( Alt Mpn 1: 0910-6397 ), ( Alt Mpn 2: Jep379437 ), ( Category 1: Top End Kits / Pistons / Rings ), ( Average Delivery Time: 2-3 Days ), ( Package Weight: 4.2500 ), ( Package Length: 10.41 ), ( Package Width: 5.71 ), ( Package Height: 5.59 ), ( Manufacturer Warranty: 90 Days )

Review J.E. PISTONS Ultra Series Piston Kit For fits HAYABUSA

Introducing the J.E. Pistons 379437 Ultra piston kit, a high-performance solution for your Hayabusa engine. This piston kit is specifically designed to enhance power, reliability, and durability for your motorcycle.

The Ultra pistons are crafted from J.E. Pistons' proprietary 2618 alloy, which offers superior strength and heat resistance. Each piston undergoes a meticulous machining process to ensure a perfect fit and optimal engine performance. The piston crowns are honed to exacting specifications, providing a perfect seal against the cylinder wall.

This kit includes four pistons, as well as piston pins, rings, and clips. The piston pins are made from 4340 chromoly steel and are shot-peened for added strength. The rings are made from high-quality, low-friction materials for maximum performance and longevity.

The Ultra pistons feature a unique design with a raised dome shape, which increases the piston's rigidity and reduces the likelihood of detonation and engine damage. The piston skirts are also optimized for improved scavenging, ensuring maximum combustion efficiency and power.

The J.E. Pistons 379437 Ultra piston kit is an excellent choice for Hayabusa riders looking to extract maximum performance from their engine. Whether you're racing on the track or pushing your bike to the limit on the street, this piston kit will help you achieve your goals with confidence and reliability.

In summary, the J.E. Pistons 379437 Ultra piston kit is a high-performance solution for Hayabusa engines, featuring pistons made from proprietary 2618 alloy, piston pins made from 4340 chromoly steel, and high-quality rings. The pistons have a raised dome shape for increased rigidity and improved scavenging, ensuring maximum combustion efficiency and power.

A Comprehensive Analysis of the JE Pistons 379437 Ultra Piston Kit for Hayabusa

The JE Pistons 379437 Ultra piston kit is a popular aftermarket upgrade for the Suzuki Hayabusa motorcycle. This piston kit is known for its high-performance features, but like any aftermarket part, it comes with its advantages and disadvantages. In this analysis, we will discuss the pros and cons of investing in the JE Pistons 379437 Ultra piston kit for your Hayabusa.

1. Enhanced Performance: The JE Pistons 379437 Ultra piston kit is designed to provide enhanced performance by increasing the engine's power output and improving its overall efficiency. This results in better throttle response, increased top-end power, and improved fuel economy.

2. High-Quality Materials: The piston kit is made from high-quality materials, including forged aluminum pistons and high-tensile steel wrist pins. These materials ensure superior strength and durability, allowing the engine to withstand the rigors of high-performance riding.

3. Improved Heat Dissipation: The pistons in the JE Pistons 379437 Ultra kit are designed with enhanced cooling capabilities. This feature helps the engine stay cooler during high-performance riding, reducing the risk of engine damage and improving overall engine life.

4. Customizable Options: JE Pistons offers various customizable options for the 379437 Ultra piston kit, including different compression ratios, skirt coatings, and ring packages. This flexibility allows riders to tailor the piston kit to their specific riding style and engine configuration.

1. Cost: The JE Pistons 379437 Ultra piston kit is a premium aftermarket upgrade, and its price tag reflects its high-performance features. The cost of the kit may be prohibitive for some riders, especially those on a tight budget.

2. Installation Complexity: Installing the JE Pistons 379437 Ultra piston kit requires significant mechanical expertise. The installation process involves removing the engine from the motorcycle, which can be a time-consuming and complex process for those without experience in engine rebuilds.

3. Potential Engine Damage: Installing aftermarket pistons like the JE Pistons 379437 Ultra kit may pose a risk of engine damage if not installed correctly. Improper installation or incorrect piston-to-liner clearances can result in serious engine damage, potentially requiring expensive repairs.

The JE Pistons 379437 Ultra piston kit is a high-performance upgrade for the Suzuki Hayabusa motorcycle. It provides numerous advantages, including enhanced performance, improved heat dissipation, and customizable options. However, it also comes with some disadvantages, such as a high cost, installation complexity, and potential engine damage if not installed correctly.

If you are a serious Hayabusa rider seeking maximum performance from your motorcycle and have the mechanical expertise and budget to install the JE Pistons 379437 Ultra piston kit, it can be a worthwhile investment. However, if you are on a tight budget or lack the necessary mechanical expertise, it may be best to consider alternative performance upgrades or to consult a professional mechanic before making a decision.

Details:

Proprietary, Molly-based dry film skirt coating is applied in-house and reduces operating friction for better wear resistance. It should not be installed on a vehicle that is driven public roads and highways. Thermal barrier crown ceramic coating on the piston greatly reduces heat transfer into material, decreasing fatigue and improving longevity. Pistons Ultra Series Piston Kit for Hayabusa 379437:: Kit 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.

100% satisfaction guaranteed. Two oil channels fed into the pin bore maintain proper lubrication to 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. 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.

Complete kit includes all necessary Pistons, rings, wrist pins, and wire locks under one part number. Combined shipping available.

part #: 379437 prices

• $1198.49-$1274.99

specifications pistondon:

• for models: Hayabusa
• brand: J.e. Pistons
• mpn: 379437
• part type: Piston
• bore oversize: 2, 00 Mm
• bore oversize 2: 2.00 Mm
• bore size: 83.00 Mm
• carb: May Not Be Able To Ship To Ca Or Other States
• compression ratio: 13.5
• units: Kit
• alt mpn 1: 0910-6397
• alt mpn 2: Jep379437
• category 1: Top End Kits / Pistons / Rings
• average delivery time: 2-3 Days
• package weight: 4.2500
• package length: 10.41
• package width: 5.71
• package height: 5.59
• manufacturer warranty: 90 Days

seller pistondon:

• city: Hilliard, Ohio
• # reviews: 473516
• rating: 99.0%

returns pistondon:

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

shipping pistondon:

• cost: $0.00
• transit: 3-6 Days
• type: Calculated
• carrier: FedEx
• class: Standard, Expedited, One-day
• service: FedEx Ground / FedEx Home Delivery, FedEx 2Day, FedEx Standard Overnight

payments pistondon:

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

general pistondon:

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

offer pistondon:

• availability: In Stock
• quantity: 6
• options: Ship-to-home
• started: August 5, 2025
• sold: 0

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