1. Pistons, Rings & Piston Kits Products
  2. sku: 6332417979377613
  3. PISTONS 391920

J.E. PISTONS 391920 Piston 78.00MM 14.5 4-STROKE

fits model: Kx250. make: Kawasaki. year: 2023.

391920 J.e. Pistons Piston 78.00mm 14.5 1 #391920 For Kawasaki Kx250 4-stroke 2023

( Brand: J.e. Pistons ), ( Manufacturer Part Number: 391920 ), ( Part Type: Piston )

Review J.E. PISTONS Piston 78.00mm 14.5 #391920 For Kawasaki 4-stroke fits KX250 2023

Introducing the J.E. Pistons 391920 piston, a high-performance solution designed specifically for the Kawasaki KX250 4-stroke motorcycle in the 2023 model year. This piston measures 78.00mm in length and 14.5mm in bore diameter, making it an ideal fit for your bike's engine.

Manufactured using J.E. Pistons' proprietary forging process, this piston ensures superior strength and durability. Its unique design features a compact shape, which not only reduces weight but also increases rigidity for enhanced power and responsiveness. The piston's skirt is finished with a state-of-the-art micro-finish to minimize friction and ensure smooth operation.

J.E. Pistons' 391920 piston is engineered with a high-tech, low-friction ring package. The piston rings are made from advanced materials to provide excellent sealing, improved ring life, and reduced engine wear. The piston's ring grooves are precision machined to ensure proper ring fit and maximum performance.

To ensure optimal performance and longevity, the piston's crown is finished with a high-tech coating. This coating provides excellent thermal properties, reducing the risk of detonation and ensuring consistent power delivery throughout the entire RPM range. Furthermore, the piston's crown is designed with a unique shape that enhances combustion efficiency and reduces engine heat.

The J.E. Pistons 391920 piston is a perfect upgrade for riders seeking improved power, efficiency, and longevity from their Kawasaki KX250. With its advanced design and high-quality materials, this piston is sure to provide superior performance and reliability, allowing you to take your riding experience to the next level.

In conclusion, the J.E. Pistons 391920 piston is a top-of-the-line upgrade for your Kawasaki KX250 4-stroke motorcycle. Its compact shape, high-tech ring package, and advanced coating make it an excellent choice for riders looking to enhance power, efficiency, and reliability. Trust J.E. Pistons to deliver a high-performance piston that is specifically designed to meet the demands of your KX250.

Purchasing Decision for Kawasaki KX250 4-Stroke 2023: 391920 Piston (78.0mm, 14.5)

Introduction:

The 391920 piston by an unspecified manufacturer, measuring 78.0mm in diameter and 14.5mm in compression height, is a potential replacement option for the Kawasaki KX250 4-Stroke 2023 motorcycle. In this analysis, we will discuss the pros and cons of buying this piston, ending with a conclusion and recommendation.

Pros:

1. Potential Performance Improvement: A new piston can provide better ring sealing, leading to increased combustion efficiency and power output.

2. Wear and Tear Replacement: Over time, pistons wear down and may require replacement to maintain engine performance and reliability.

3. Availability: This piston is readily available in the market, which can save time and hassle in the event of an engine failure or significant power loss.

Cons:

1. Unknown Manufacturer: The lack of information about the manufacturer can pose uncertainty regarding the quality and durability of the product.

2. Potential Compatibility Issues: Although the diameter and compression height match, other dimensions (skirt length, pin bore, etc.) must be verified to ensure proper fitment.

3. Cost: The $78 price point may be higher than other aftermarket alternatives, potentially limiting the budget-conscious consumer's purchasing decision.

Conclusion:

The decision to purchase the 391920 piston for the Kawasaki KX250 4-Stroke 2023 depends on various factors, including your budget, engine condition, and desired performance improvements. If you require a replacement piston due to wear and tear or engine failure, this option may be a viable choice. However, if you're seeking a high-performance upgrade, it would be wise to consider alternative pistons from reputable manufacturers to ensure compatibility and quality.

Recommendation:

If you're in need of a replacement piston, the 391920 piston can be a suitable option, given its availability and matching dimensions. However, if you desire improved performance and reliability, consider researching and purchasing a piston from a well-known aftermarket manufacturer. Always ensure proper compatibility before installation.

Details:

Kawasaki KX250 4-Stroke 2023-2024. NOTE: Sold per cylinder. Pistons Piston 78.00mm 14.5:1 #391920 for Kawasaki KX250 4-Stroke 2023: Machined from 2618 T6 high tensile forged aluminum. Dome/Dish features smooth flowing radius and requires no debarring or preparation.

Precision CNC machined ring grooves. This item fits the following applications Made in USA. Kawasaki KX250F 4-Stroke 2023-2024. Pins, pin fitment, lock and rings included.

Forged Side Relief FSR skirt style. Machined oil drain back holes engineered for specific control.

part #: 391920 prices

  • $270.95-$301.06

specifications pistondon:

  • for models: Kx250
  • for makes: Kawasaki
  • for years: 2023
  • brand: J.e. Pistons
  • mpn: 391920
  • part type: Piston

general pistondon:

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

offer pistondon:

  • options: Ship-to-home
  • started: May 7, 2025
  • sold: 0
  • quantity: 8
  • availability: In Stock

seller pistondon:

  • # reviews: 612674
  • city: Grand Rapids, Michigan
  • rating: 99.3%

payments pistondon:

  • wallet: Paypal
  • credit card: Discover
  • other

returns pistondon:

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

shipping pistondon:

  • class: Standard
  • transit: 3-6 Days
  • type: Fixed
  • service: UPS Ground
  • carrier: UPS
  • cost: $0.00
for models: kx250, for makes: kawasaki, for years: 2023, part type: piston,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 6332417979377613,

J.e. Pistons 391920 Is Similar To:

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5 offers $270.95–$301.06 USD
  • Offer #1: $270.95 price + $0.00 shipping estimate = $270.95* total. As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its carefully developed line of premium forged pistons for UTV engines. FSR Pro Series Piston Kit, Standard Bore 78.00mm, 14.5:1 Compression.FREE SHIPPING
  • Offer #2: $301.06 price + $0.00 shipping estimate = $301.06* total.FREE SHIPPING
  • Offer #3: $283.00 price + $0.00 shipping estimate = $283.00* total. Pistons FSR Pro Series Piston Kits As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its carefully developed line of premium forged pistons for UTV engines. J.E.FREE SHIPPING
  • Offer #4: $301.06 price + $12.99 shipping estimate = $314.05* total. VPN:, 0910-6680. MPN: ,.+$12.99 shipping
  • Offer #5: $246.16 price + $0.00 shipping estimate = $246.16* total. This item fits the following applications Made in the USA. Kawasaki KX250 4-Stroke 2023-2024.FREE SHIPPING

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