1. Pistons, Rings & Piston Kits Products
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  3. MAGNUM Z-MX-04125K

MAGNUM Z-MX-04125K Cylinder Piston Gaskets Wrist Pin Bearing 54MM Cylinder/piston/gaskets/wrist

fits model: Yz125. make: Yamaha. year: 2005–2021.

Z-mx-04125k Magnum New 2005-2021 Yamaha Yz125 54mm Cylinder/piston/gaskets/wrist Pin Bearing

( Brand: Magnum ), ( Manufacturer Part Number: Z-MX-04125K ), ( Part Type: Gasket Bearing Cylinder Piston Pin )

Review MAGNUM New Yamaha 54mm Cylinder/piston/gaskets/wrist Pin Bearing fits YZ125 2005–2021

Introducing the Magnum Z-MX-04125K, a high-performance upgrade kit designed specifically for the Yamaha YZ125 motorcycle models produced from 2005 to 2021. This kit includes crucial engine components that will enhance power output, durability, and overall riding experience.

Firstly, the heart of this kit is the 54mm cylinder. Engineered using the finest materials and manufacturing techniques, this cylinder offers improved thermal efficiency and superior heat dissipation. The precise bore finish ensures a perfect seal with the piston, reducing compression losses and maximizing power transfer to the crankshaft. The cylinder also features an optimized port design, which enhances gas flow for increased power and torque.

Next, the piston included in this kit is meticulously crafted to complement the cylinder. With a forged aluminum construction, this piston boasts superior strength and durability. The piston also features a lighter design, which aids in reducing reciprocating weight, resulting in smoother engine operation and improved power delivery. The piston's crown is designed with a high compression finish for optimal combustion efficiency.

In addition to the cylinder and piston, this kit also includes gaskets and the wrist pin bearing. The gaskets are precision-machined to ensure a perfect seal and prevent oil or coolant leaks. The wrist pin bearing, made from high-quality steel, reduces friction and wear between the connecting rod and the crankshaft, leading to increased engine longevity and improved performance.

This upgrade kit is an excellent option for racers, track day enthusiasts, or anyone seeking to maximize the potential of their Yamaha YZ125 motorcycle. With its high-performance cylinder, lightweight piston, durable gaskets, and long-lasting wrist pin bearing, the Magnum Z-MX-04125K is a must-have for those looking to take their riding experience to the next level.

Pros and Cons of Buying Magnum Z-MX-04125K Cylinder/Piston/Gaskets/Wrist Pin Bearing for Yamaha YZ125 (2005-2021)

Introduction:

The Magnum Z-MX-04125K is a complete kit containing a cylinder, piston, gaskets, and wrist pin bearing for Yamaha YZ125 motorcycles manufactured between 2005 and 2021. In this analysis, we will discuss the advantages and disadvantages of purchasing this kit to help potential buyers make an informed decision.

Pros:

1. Compatibility: The Magnum Z-MX-04125K is specifically designed for Yamaha YZ125 motorcycles, ensuring a perfect fit.

2. OEM-grade Quality: Magnum is a reputable aftermarket parts manufacturer known for producing high-quality components that meet or even exceed OEM specifications.

3. Time-saving: Buying a complete kit instead of individual parts saves time and effort, as everything is included in one package.

4. Cost-effective: Replacing all the mentioned parts in one go can save money compared to buying them separately or dealing with ongoing maintenance issues.

5. Improved Engine Performance: A fresh cylinder, piston, gaskets, and wrist pin bearing can contribute to improved engine performance and increased power output.

Cons:

1. Cost: While the kit is cost-effective in comparison to buying individual parts separately, it may still represent a significant investment for some riders.

2. Installation Complexity: Installing a complete engine kit requires a good deal of mechanical knowledge and experience.

3. Availability: Magnum Z-MX-04125K kits may not be readily available in all locations, necessitating online purchases or special orders.

Conclusion:

The Magnum Z-MX-04125K cylinder/piston/gaskets/wrist pin bearing kit presents several advantages, including compatibility, OEM-grade quality, time-saving, cost-effectiveness, and improved engine performance. However, potential drawbacks include the cost, installation complexity, and limited availability.

Recommendation:

If you are an experienced rider with a good understanding of engine maintenance or have access to a professional mechanic, the Magnum Z-MX-04125K kit could be an excellent investment for your Yamaha YZ125 motorcycle. The kit's potential for improved engine performance and cost savings make it a worthwhile consideration. However, if you lack mechanical knowledge or experience, it might be wise to seek professional help or consider purchasing individual parts instead.

Details:

These are the best aftermarket cylinders available, Fits: 2005 2021 Yamaha YZ125, Same day shipping, M-F, see cutoff times, New YZ125 Top End Kit. Magnum 54mm Cylinder. Maura Top End Gasket Kit. New YZ125 Top End Kit, Includes: Wisc 54mm Piston and Bearing.

specifications pistondon:

  • for models: Yz125
  • for makes: Yamaha
  • for years: 2005-2021
  • brand: Magnum
  • mpn: Z-mx-04125k
  • part type: Gasket Bearing Cylinder Piston Pin

general pistondon:

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

returns pistondon:

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

shipping pistondon:

  • service: USPS First Class, USPS Priority Mail Padded Flat Rate Envelope, USPS Priority Mail Express
  • type: Fixed
  • transit: 4-10 Days
  • cost: $0.00
  • carrier: USPS
  • class: Standard, Expedited

seller pistondon:

  • # reviews: 7266
  • rating: 100.0%
  • city: Minford, Ohio

offer pistondon:

  • sold: 0
  • options: Ship-to-home
  • started: July 7, 2025
  • quantity: 1
  • availability: In Stock

payments pistondon:

  • wallet: Google-pay
  • credit card: Visa
  • other
for models: yz125, for makes: yamaha, for years: 2005-2021, part type: gasket bearing cylinder piston pin,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 7268366769942771,

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