1. Pistons, Rings & Piston Kits Products
  2. sku: 8319922460890793
  3. PRO 01.4355.A

PRO-X 01.4355.A Piston 77.96MM 12.5 4-STROKE/KX250X

fits model: Kx250, Kx250x. make: Kawasaki.

01.4355.a Pro-x Piston Size A 77.96mm 12.5 1 For Kawasaki Kx250 4-stroke/kx250x 4-stroke

( Brand: Pro-x ), ( Manufacturer Part Number: 01.4355.A ), ( Part Type: Piston )

Review PRO X Piston Size 77.96mm 12.5 For Kawasaki 4-stroke/kx250x 4-stroke fits KX250 KX250X

Introducing the PRO-X 01.4355.A piston, an essential upgrade for your Kawasaki KX250 4-stroke and KX250X 4-stroke motorcycles. This high-performance piston is meticulously engineered to deliver enhanced power, increased durability, and improved efficiency for your engine.

Measuring 77.96mm in bore diameter and designed for a stroke length of 12.5mm, this piston is specifically tailored to fit the Kawasaki KX250 and KX250X 4-stroke models. The piston skirt is designed with a state-of-the-art coating that ensures minimal friction and superior ring sealing, resulting in reduced engine wear and improved combustion efficiency.

The PRO-X 01.4355.A piston features a forged construction made of premium-grade aluminum alloy. This construction method ensures a piston that is both incredibly strong and lightweight, enabling optimal engine performance and efficiency. The piston crown is engineered with a high-performance design that maximizes power output and improves combustion efficiency.

Additionally, this piston comes with a lightweight and durable piston pin made of high-strength steel. The pin is precision-machined to ensure a perfect fit and minimal wear, resulting in increased engine reliability and longevity.

Each PRO-X 01.4355.A piston is meticulously inspected to ensure the highest quality standards. The piston is carefully balanced to eliminate any vibrations, ensuring smooth and consistent engine performance. This piston is also accompanied by a set of top-quality piston rings, ensuring a perfect seal and reducing the likelihood of oil leaks.

In summary, the PRO-X 01.4355.A piston is an exceptional upgrade for your Kawasaki KX250 4-stroke and KX250X 4-stroke motorcycles. With its forged aluminum alloy construction, precision-machined components, and high-performance design, this piston delivers increased power, durability, and efficiency to your engine. Upgrade now and experience the difference a high-quality piston can make.

The Pro-X Piston 77.96mm 12.5 for Kawasaki KX250 4-stroke/KX250X 4-stroke is a performance aftermarket piston designed to enhance the power and durability of your motorcycle engine. Here are some potential pros and cons of buying this piston:

Pros:

1. Enhanced Performance: The Pro-X piston is designed to provide better compression ratio, leading to increased power output. It may also offer improved combustion efficiency, resulting in better fuel economy and reduced exhaust emissions.

2. Durability: The piston is made from high-quality material and is designed to withstand the rigors of off-road riding. It may last longer than the stock piston, reducing the need for frequent replacements.

3. Customizability: The Pro-X piston is available in various sizes and configurations, allowing riders to fine-tune their engine to meet their specific riding needs and preferences.

4. Improved Throttle Response: The piston may offer improved throttle response, making the motorcycle more responsive and agile.

Cons:

1. Cost: Aftermarket performance pistons can be more expensive than stock pistons. The cost of the Pro-X piston may be a significant investment for some riders.

2. Installation Complexity: Installing an aftermarket performance piston can be a complex process that requires specialized tools and knowledge. It may be more difficult and time-consuming than installing a stock piston.

3. Potential Risks: Installing an aftermarket performance piston can increase the power output of the engine, which may lead to increased risks of engine damage or failure if not installed correctly or if the rider is not experienced enough.

4. Warranty: Installing an aftermarket performance piston may void the manufacturer's warranty on the motorcycle engine.

Conclusion:

The Pro-X Piston 77.96mm 12.5 for Kawasaki KX250 4-stroke/KX250X 4-stroke can provide significant performance and durability benefits for off-road riders looking to enhance the capabilities of their motorcycle engine. However, it comes with a higher cost, installation complexity, and potential risks that should be carefully considered before making a purchase. Ultimately, the decision to buy this piston depends on your riding style, experience level, and budget. If you are an experienced off-road rider looking for maximum power and durability, the Pro-X piston may be a worthwhile investment. However, if you are a casual rider or are new to off-road riding, it may be wiser to stick with the stock piston to avoid potential risks and costs.

Details:

Compression Ratio. The smart solution; save money on engine repairs. Cast from a high-silicon content aluminum alloy that meets or exceeds OE specifications, then CNC machined to extremely close tolerances. Standard B, C and sizes extend the life of expensive plated cylinders.

Kawasaki KX250F 4-Stroke 2025-2026. Manufactured in Japan and designed as OE replacements. Size Over Standard. Kawasaki KX250 4-Stroke 2025-2026.

Available in standard sizes along with fractional increases. Kawasaki KX250X 4-Stroke 2025-2026. This item fits the following applications. Pistons supplied in a kit package that includes rings, wrist pins and cir clips.

part #: 014355a prices

  • $124.95-$169.99

specifications pistondon:

  • for models: Kx250, Kx250x
  • for makes: Kawasaki
  • brand: Pro-x
  • mpn: 01.4355.a
  • part type: Piston

general pistondon:

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

seller pistondon:

  • rating: 99.4%
  • # reviews: 633924
  • city: Grand Rapids, Michigan

returns pistondon:

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

offer pistondon:

  • sold: 0
  • options: Ship-to-home
  • quantity: 3
  • started: September 26, 2025
  • availability: In Stock

shipping pistondon:

  • carrier: UPS
  • transit: 3-6 Days
  • service: UPS Ground
  • class: Standard
  • type: Fixed
  • cost: $0.00

payments pistondon:

  • other
  • credit card: Visa
  • wallet: Apple-pay
for models: kx250, kx250x, for makes: kawasaki, part type: piston,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 8319922460890793,

Pro-x 01.4355.A Is Similar To:

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3 offers $124.95–$169.99 USD
  • Offer #1: $169.99 price + $0.00 shipping estimate = $169.99* total. A Pro-X Piston Kit. New Kawasaki KX250, 2025-2026, 14:1 77.96mm Std 01.4355.FREE SHIPPING
  • Offer #2: $169.99 price + $0.00 shipping estimate = $169.99* total. New Kawasaki KX250X, 2025-2026, 14:1 77.96mm Std 01.4355.FREE SHIPPING
  • Offer #3: $124.95 price + $0.00 shipping estimate = $124.95* total. Pro X Piston Kit 01.4355. Sleeved cylinder piston kits are available in standard size and a wide range of oversizes.FREE SHIPPING

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