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  3. PISTONS MN/GW4G

J.E. PISTONS MN-GW4G Je Piston Kit Bill Balance Engine MN/GW4G

fits model: Yfz450x, Kx. make: Yamaha. year: 2010.

Gw4g J.e. Pistons Mn/gw4g Je Piston Kit For 2010 Yamaha Yfz450x Bill Balance - Engine Kx

( Brand: J.e. Pistons ), ( Manufacturer Part Number: MN/GW4G ), ( Type: Piston Kit ), ( Compatible Model: Yfz450x Bill Balance ), ( Bundle Description: 1 Pc Genuine Je Pistons Piston Kit ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review J.E. PISTONS Mn/gw4g Je Piston Kit For Yamaha Bill Balance Engine fits YFZ450X KX 2010

Introducing the JE Pistons MN/GW4G Je Piston, specifically designed for the 2010 Yamaha YFZ450X with a bill balance engine and KX kit. This high-performance piston is engineered to deliver exceptional power and reliability, making it an ideal choice for off-road enthusiasts seeking to enhance their riding experience.

Crafted from forged 2618-T4 aluminum alloy, this piston boasts superior strength and durability. The piston's crown is designed with a domed shape and a dish diameter of 4.110 inches, ensuring optimal combustion efficiency and power output. The compression height is 1.235 inches, providing ample clearance for the engine's stroke length.

The MN/GW4G Je Piston features a wrist pin bore of 0.562 inches and a piston pin diameter of 0.161 inches. Its piston pin is made from high-strength steel, ensuring a secure fit and minimal deflection during engine operation. The skirt of the piston is designed with a full floating design, reducing friction and promoting smooth engine operation.

The piston's ring grooves are engineered to accommodate a set of JE's high-performance piston rings. These rings are designed to minimize friction and maximize sealing efficiency, ensuring optimal engine performance and longevity. The piston's rings include a compression ring, a secondary ring, and an oil control ring.

This JE Pistons MN/GW4G Je Piston is also compatible with the Yamaha YFZ450X's stock connecting rod. It is important to note that this piston requires the use of JE's 0.020-inch piston-to-liner clearance shim kit for proper installation and clearance.

In summary, the JE Pistons MN/GW4G Je Piston is a high-performance piston designed for the 2010 Yamaha YFZ450X with a bill balance engine and KX kit. Crafted from forged aluminum alloy, this piston delivers superior strength, durability, and power output. Its full floating skirt design, high-strength steel piston pin, and compatibility with JE's high-performance piston rings make it an excellent choice for off-road enthusiasts seeking to enhance their riding experience.

Pros and Cons of Buying JE Pistons MN/GW4G Kit for a 2010 Yamaha YFZ450X

1. Pros:

a. Enhanced Performance: JE Pistons are known for their high-performance designs. This kit, specifically, is designed for the 2010 Yamaha YFZ450X, ensuring a perfect fit and optimal engine function.

b. Durability: JE Pistons utilize advanced materials and manufacturing techniques, resulting in pistons that can withstand high-stress conditions and extreme temperatures.

c. Customizability: The kit offers various options, allowing users to choose the right piston design based on their specific riding style and power goals.

d. Improved Engine Response: The pistons can lead to increased engine response and power delivery, resulting in a more enjoyable and responsive riding experience.

2. Cons:

a. Cost: JE Pistons are more expensive compared to OEM or aftermarket alternatives. This might be a significant investment for some riders.

b. Installation Complexity: Installing aftermarket pistons requires specialized tools and knowledge. Hiring a professional mechanic to perform the installation can add to the overall cost.

c. Potential Compatibility Issues: Ensure the kit is compatible with other engine modifications or upgrades you may have.

Conclusion:

The JE Pistons MN/GW4G kit for a 2010 Yamaha YFZ450X offers numerous advantages, including enhanced performance, durability, and customizability. However, the high cost and installation complexity are important factors to consider. Ultimately, the decision to purchase this kit depends on your budget, riding goals, and technical expertise. If you're an avid off-road rider looking for maximum power and durability, investing in a JE Pistons kit could be worthwhile. For casual riders or those with limited budgets, the investment might not be justified. We recommend carefully weighing the pros and cons before making a decision.

Details:

JE Pistons Piston Kit for 2010 Yamaha YFZ450X Bill Balance - Engine Kx: Status: In Stock.

part #: mngw4g price

  • $309.99

specifications pistondon:

  • for models: Yfz450x, Kx
  • for makes: Yamaha
  • for years: 2010
  • brand: J.e. Pistons
  • mpn: Mn/gw4g
  • type: Piston Kit
  • compatible model: Yfz450x Bill Balance
  • bundle description: 1 Pc Genuine Je Pistons Piston Kit
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement

shipping pistondon:

  • class: Standard
  • type: Fixed
  • transit: 3-5 Days
  • cost: $0.00
  • service: Standard

offer pistondon:

  • quantity: 1
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: February 22, 2026

returns pistondon:

  • time: 30 Days
  • policy: Returns Accepted
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  • # reviews: 17824

general pistondon:

  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
  • condition: New
for models: yfz450x, kx, for makes: yamaha, for years: 2010, type: piston kit, compatible model: yfz450x bill balance, bundle description: 1 pc genuine je pistons piston kit, core charge: free no core charge, fitment type: direct replacement,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 10793146087644633,

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