1. Pistons, Rings & Piston Kits Products
  2. sku: 8401867384041793
  3. ATHENA S4C03950001B

ATHENA S4C03950001B Mini Sr Piston Kit Nos 50CC 39.5MM

fits make: Ktm. year: 2003–2008.

S4c03950001b Athena 03-08 Ktm 50cc Mini Jr Sr Piston Kit 39.5mm Bore B Nos

( Brand: Athena ), ( Manufacturer Part Number: S4C03950001B ), ( Engine Type: 2-stroke ), ( Type: Piston Kit ), ( Machine Type: Off-road Motorcycle ), ( Items Included: Piston Rings ), ( Vintage Part: No )

Review ATHENA Ktm 50cc Mini Jr Sr Piston Kit 39.5mm Bore Nos fits 2003–2008

Introducing the Athena S4C03950001B 03-08 KTM 50cc Mini SR Piston Kit, a high-performance replacement solution for your KTM 50cc mini bike's piston. This precision-engineered piston kit is specifically designed for the SR engine models from 2003 to 2008, ensuring a perfect fit and optimal engine functionality.

The Athena piston is manufactured using the latest technologies and high-quality materials to deliver superior durability and reliability. The piston crown is designed with a compact shape and a honed skirt to minimize friction and improve combustion efficiency. The piston ring package includes two compression rings and an oil control ring, all made from top-grade materials to ensure a tight seal and even compression.

The piston pin is made from chrome molybdenum steel, providing excellent strength and resistance to wear and fatigue. The pin is also coated with a durable nickel plating to prevent corrosion and ensure a smooth, hassle-free installation. The piston pin retaining clip is made from high-strength steel and is designed to securely hold the piston pin in place.

The piston kit also includes a new piston pin bushing, which is installed between the piston pin and the engine crankshaft. This bushing ensures a snug fit and reduces wear and tear on the piston pin.

The Athena S4C03950001B 03-08 KTM 50cc Mini SR Piston Kit is an excellent choice for riders who demand the best performance from their mini bike. With its high-quality materials, precise engineering, and durable construction, this piston kit will provide excellent power output, improved fuel efficiency, and reliable operation for thousands of miles. Upgrade your KTM mini bike today with this top-of-the-line piston kit from Athena.

Athena S4C03950001B 03-08 KTM 50cc Mini SR Piston Kit: A Comprehensive Analysis

Introduction:

The Athena S4C03950001B 03-08 KTM 50cc Mini SR Piston Kit is a replacement part designed for KTM 50cc mini bikes. This piston kit is essential for ensuring the engine's optimal performance. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this piston kit.

Pros:

1. Enhanced Engine Performance: A new piston kit can significantly improve engine performance by ensuring a proper fit and reducing engine wear. This can lead to increased power output, improved fuel efficiency, and smoother engine operation.

2. Durability: The Athena piston kit is designed to be robust and long-lasting. It is made using high-quality materials, ensuring that it can withstand the rigors of regular use.

3. Easy Installation: The piston kit comes with all necessary components, making the installation process straightforward and hassle-free for most users.

4. OEM Quality: The Athena piston kit is an original equipment manufacturer (OEM) replacement, meaning it is designed and manufactured to the same specifications as the original part. This ensures a perfect fit and optimal engine performance.

Cons:

1. Cost: The Athena piston kit may be more expensive than aftermarket alternatives. However, the increased cost may be justified by the OEM quality, durability, and improved engine performance.

2. Availability: Depending on your location, the Athena piston kit may not be readily available at local retailers. You may need to order it online, which could result in longer wait times.

Conclusion:

In conclusion, the Athena S4C03950001B 03-08 KTM 50cc Mini SR Piston Kit offers several advantages, including enhanced engine performance, durability, easy installation, and OEM quality. While the cost and availability may be disadvantages for some users, the benefits often outweigh the drawbacks.

Recommendation:

If you are looking for a high-quality piston kit for your KTM 50cc mini bike that ensures optimal engine performance and durability, the Athena S4C03950001B 03-08 KTM 50cc Mini SR Piston Kit is an excellent choice. Despite the potential cost and availability concerns, the benefits of this piston kit are significant and can help you maintain your mini bike's engine in top condition.

Details:

Parts are inspected for flaws and blemishes before they sold as described in the Condition. If you are unsure how to install the part properly, Please refer a trained mechanic it for. The 03-08 KTM 50cc MINI, JR, SR Athena Piston Kit features a 39.5mm bore size, specifically designed for 2-stroke engines.

part #: s4c03950001b prices

  • $63.54-$91.16

specifications pistondon:

  • for makes: Ktm
  • for years: 2003-2008
  • brand: Athena
  • mpn: S4c03950001b
  • engine type: 2-stroke
  • type: Piston Kit
  • machine type: Off-road Motorcycle
  • items included: Piston Rings
  • vintage part: No

general pistondon:

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

seller pistondon:

  • city: Bohemia, New York
  • rating: 83.3%
  • # reviews: 4

offer pistondon:

  • quantity: 1
  • sold: 0
  • started: October 9, 2025
  • options: Ship-to-home
  • availability: In Stock

returns pistondon:

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

shipping pistondon:

  • service: USPS Ground Advantage
  • transit: 6-12 Days
  • class: Standard
  • carrier: USPS
  • type: Calculated
  • cost: $0.00

payments pistondon:

  • wallet: Paypal
  • credit card: Discover
  • other
for makes: ktm, for years: 2003-2008, engine type: 2-stroke, type: piston kit, machine type: off-road motorcycle, items included: piston rings, vintage part: no,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 8401867384041793,

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5 offers $63.54–$91.16 USD
  • Offer #1: $91.16 price + $0.00 shipping estimate = $91.16* total. The rings perfectly adapt to the cylinder liner even at low tangential load. Part Number:.FREE SHIPPING
  • Offer #2: $63.54 price + $76.50 shipping estimate = $140.04* total. KTM SX 50 2004. KTM SX 50 2002.+$76.50 shipping
  • Offer #3: $88.53 price + $50.97 shipping estimate = $139.50* total. Cast Piston for KTM MINI/JUNIOR/SENIOR ADVENTURE AC 50 2002-2008 39.47mm Athena.+$50.97 shipping
  • Offer #4: $88.53 price + $50.97 shipping estimate = $139.50* total. Cast Piston for KTM SX LC 50 2001-2008 39.47mm Athena.+$50.97 shipping
  • Offer #5: $65.00 price + $0.00 shipping estimate = $65.00* total. The 03-08 KTM 50cc MINI, JR, SR (Air Cooled Models) Athena Piston Kit features a 39.5mm bore size, specifically designed for 2-stroke engines.FREE SHIPPING

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