1. Pistons, Rings & Piston Kits Products
  2. sku: 6780950955399533
  3. PRO 01.4351.A

PRO-X 01.4351.A Piston Forged Nikasil 193564435347 77.96MM 14.1 4-STROKE

fits model: Kx250. make: Kawasaki.

01.4351.a Pro-x Piston Forged Nikasil 77.96mm 14.1 1 For Kawasaki Kx250 4-stroke

( Brand: Pro-x ), ( Manufacturer Part Number: 01.4351.A ), ( Part Type: Piston ), ( UPC: 193564435347 )

Review PRO X Piston Forged Nikasil 77.96mm 14.1 For Kawasaki 4-stroke fits KX250

Introducing the PRO-X 01.4351.A piston, an exceptional upgrade for your Kawasaki KX250 4-stroke engine. This piston is meticulously designed and engineered for optimal performance, ensuring a powerful and efficient riding experience.

The PRO-X 01.4351.A piston is forged from high-quality aluminum alloy using the latest piston forging technology. Its Nikasil coating provides an exceptionally smooth and durable surface finish, ensuring superior heat transfer and reduced friction for enhanced engine performance. With a bore size of 77.96mm and a compressions height of 14.1mm, this piston is specifically tailored to fit the Kawasaki KX250 engine.

The piston crown is designed with a compact shape and an optimized dome profile, which allows for increased combustion efficiency and improved engine response. The piston skirt is engineered with a full-length oil cooling groove, providing efficient oil cooling and reducing the risk of piston scuffing.

Additionally, the piston features a precision-machined piston pin bore, ensuring a perfect fit for the piston pin and reducing the risk of piston-to-pin contact. The piston also comes with a high-quality piston ring set, ensuring proper sealing and preventing oil leakage.

In summary, the PRO-X 01.4351.A piston is a top-tier upgrade for your Kawasaki KX250 4-stroke engine. Its advanced forging technology, Nikasil coating, compact piston crown, full-length oil cooling groove, and precision-machined piston pin bore make it an ideal choice for riders seeking improved engine performance, efficiency, and longevity.

Pros and Cons of Buying a PRO-X Piston for Kawasaki KX250 4-Stroke

Introduction:

The PRO-X Piston (Part Number: 01.4351.A, Size: 77.96mm, Stroke: 14.1mm) is a popular aftermarket option for Kawasaki KX250 4-stroke motorcycles. This piston is known for its forged construction and Nikasil coating. In this article, we will discuss the advantages and disadvantages of buying this PRO-X piston for your Kawasaki KX250.

Pros:

1. Enhanced Durability: The piston's forged construction increases its strength and durability compared to the stock piston.

2. Improved Performance: The Nikasil coating reduces friction between the piston and cylinder walls, resulting in better engine efficiency and power output.

3. Increased Longevity: The Nikasil coating also provides excellent wear resistance, ensuring that the piston lasts longer than the stock piston.

4. Customizability: The PRO-X piston offers an opportunity to upgrade and personalize your motorcycle's engine.

5. Potential to Improve Top-End Power: Some users have reported an increase in top-end power after installing this piston.

Cons:

1. Installation Complexity: Installing a forged piston involves additional steps compared to replacing a stock piston. It may require specialized tools and knowledge.

2. Cost: The PRO-X piston is more expensive than the stock piston, which could be a deterrent for some buyers.

3. Potential for Engine Tuning: Installing a high-performance piston like the PRO-X might require additional modifications to the engine, such as adjusting the carburetor or fuel mapping, to ensure optimal performance.

4. Risks of Improper Installation: The installation process carries a risk of damaging the engine if not done correctly. It is essential to follow the instructions carefully and consider seeking professional help.

Conclusion:

The PRO-X Piston (01.4351.A) offers several advantages, including increased durability, improved performance, and extended engine life. However, it also comes with some disadvantages, such as the installation complexity and higher cost. Ultimately, the decision to buy this piston depends on your budget, technical expertise, and performance goals. If you're looking for a high-performance upgrade and are comfortable with the installation process, the PRO-X piston could be an excellent investment for your Kawasaki KX250. If not, the stock piston may be a more suitable option.

Recommendation:

If you're considering purchasing the PRO-X piston for your Kawasaki KX250, we recommend that you thoroughly research the installation process and consider seeking professional assistance if necessary. Additionally, make sure that you're prepared for the increased cost and potential need for additional engine modifications. Overall, the PRO-X piston can provide significant benefits, but it's essential to weigh the pros and cons carefully before making a decision.

Details:

Kawasaki KX250 4-Stroke 2021 -2022. Piston kit comes complete with piston, rings, pin and clips. This item fits the following applications. PRO-X Piston Forged Nikasil 77.96mm 14.1:1 for Kawasaki KX250 4-Stroke: Save money over OEM pricing.

Kawasaki KX250F 4-Stroke 2021 -2022. Forged Aluminum.

part #: 014351a prices

  • $167.36-$169.99

specifications pistondon:

  • for models: Kx250
  • for makes: Kawasaki
  • brand: Pro-x
  • mpn: 01.4351.a
  • part type: Piston
  • upc: 193564435347

offer pistondon:

  • availability: In Stock
  • options: Ship-to-home
  • quantity: 2
  • sold: 0
  • started: June 3, 2025

payments pistondon:

  • credit card: Mastercard
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general pistondon:

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

shipping pistondon:

  • transit: 3-8 Days
  • cost: $0.00
  • class: Standard
  • type: Fixed
  • service: Standard

returns pistondon:

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

seller pistondon:

  • # reviews: 615680
  • city: Grand Rapids, Michigan
  • rating: 99.3%
for models: kx250, for makes: kawasaki, part type: piston,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 6780950955399533,

Pro-x 01.4351.A Is Similar To:

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5 offers $167.36–$169.99 USD
  • Offer #1: $167.36 price + $0.00 shipping estimate = $167.36* total. Manufacturer Pro X Pro X 01.4351.FREE SHIPPING
  • Offer #2: $169.99 price + $0.00 shipping estimate = $169.99* total. ProX has developed a new skirt coating that not only assists the wear-in process, but also helps reducing friction after the wear-in. Important note: This piston is for a stock sized bore.FREE SHIPPING
  • Offer #3: $169.99 price + $0.00 shipping estimate = $169.99* total. A Pro-X Piston Kit. New Kawasaki KX250, 2021-2022, 77.96mm Std 01.4351.FREE SHIPPING
  • Offer #4: $169.99 price + $0.00 shipping estimate = $169.99* total. Whether rebuilding for reliability or chasing podiums, this piston provides consistent power, smooth operation, and proven durability Pro X Piston CR/RM 250.FREE SHIPPING
  • Offer #5: $167.36 price + $0.00 shipping estimate = $167.36* total. Product Type : Piston kits & Components A - Piston Kit Forged Nikasil Cyl 77.9614.1:1KAW - Kawasaki.FREE SHIPPING

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