MAGNUM MX-04125C Standard Cylinder 54.0MM

( Brand: Magnum ), ( Manufacturer Part Number: MX-04125C ), ( Part Type: Cylinder )

Review MAGNUM New Yamaha 54.0mm Standard Bore Cylinder Ships Same Day fits YZ125 2005–2021

Introducing the Magnum MX-04125C, a high-performance aftermarket cylinder kit specifically designed for the Yamaha YZ125 motorcycle model years 2005 to 2021. This premium cylinder kit is an excellent upgrade for riders seeking enhanced power and torque from their YZ125.

The Magnum MX-04125C cylinder features a bore size of 54.0mm, representing a significant increase from the stock 53.0mm cylinder. This larger bore results in increased engine displacement, translating to more power and torque at the crankshaft. The oversize cylinder also allows for a more efficient transfer of combustion gases, further contributing to improved engine performance.

Manufactured using the highest-quality materials, this Magnum cylinder kit is engineered for durability and reliability. The cylinder is made from a heat-treated JE Piston Forging, ensuring superior strength and rigidity. The cylinder wall is plated with a nickel-chrome alloy for enhanced wear resistance, ensuring a long lifespan even under the most demanding racing conditions.

The Magnum MX-04125C cylinder kit also includes a new piston, ring set, and cylinder head gasket. The piston is designed to perfectly match the oversize cylinder, ensuring a precise fit and optimal engine performance. The ring set includes a compression ring, oil control ring, and two piston rings, all made from high-quality materials to ensure proper sealing and efficient engine operation. The cylinder head gasket is precision-machined for a perfect fit, ensuring a secure seal and eliminating the risk of head gasket leaks.

Installation of the Magnum MX-04125C cylinder kit is straightforward and can be completed using common hand tools. The kit includes detailed instructions and all necessary hardware for a hassle-free installation process. Additionally, the Magnum cylinder is designed to be a direct replacement for the stock cylinder, eliminating the need for any engine modifications.

In conclusion, the Magnum MX-04125C is an excellent upgrade for Yamaha YZ125 motorcycles, offering increased power, torque, and improved engine efficiency. Manufactured using the highest-quality materials and precision-engineered for a perfect fit, this cylinder kit is a must-have for any serious off-road racer or enthusiast. Upgrade your YZ125 with the Magnum MX-04125C and experience the difference for yourself!

Pros and Cons of Buying Magnum MX-04125C Cylinder for 2005-2021 Yamaha YZ125

a. Compatibility: The Magnum MX-04125C cylinder is specifically designed for the 2005-2021 Yamaha YZ125, ensuring a perfect fit and eliminating the need for modifications.

b. Performance: This aftermarket cylinder is known to provide improved power and torque, enhancing the overall performance of the bike.

c. Durability: The Magnum MX-04125C cylinder is made from high-quality materials, promising longevity and resistance to wear and tear.

d. Easy Installation: Installing the Magnum MX-04125C cylinder is usually a straightforward process, saving time and effort for bike owners.

a. Cost: An aftermarket cylinder like the Magnum MX-04125C can be more expensive than purchasing a stock OEM cylinder from the dealership.

b. Risk of Damage: Installing aftermarket parts, especially cylinders, carries a risk of damaging other components if not installed correctly.

c. Potential for Unintended Consequences: While the Magnum MX-04125C cylinder may provide performance benefits, it could also potentially introduce new issues, such as increased engine noise or vibration.

The Magnum MX-04125C cylinder offers several advantages, including improved power, compatibility, and durability. However, it comes with potential drawbacks, such as increased cost and the risk of unintended consequences. Ultimately, the decision to purchase this aftermarket cylinder depends on your budget, level of mechanical expertise, and desired performance enhancements.

If you are a casual rider, you might be better off sticking with the stock OEM cylinder to ensure reliability and minimize potential issues. However, if you are a more experienced rider, looking for increased power and performance, and are comfortable with the installation process, the Magnum MX-04125C cylinder could be a worthwhile investment. Make sure to research installation instructions thoroughly and consider purchasing from a reputable dealer to minimize the risk of complications.

Details:

These are the best aftermarket cylinders available, Fits: 2005 2021 Yamaha YZ125, Same day shipping, M-F, see cutoff times, YZ125. New Magnum Standard Bore 54mm Cylinder, Listing is for cylinder only.

part #: mx04125c price

• $237.99

specifications pistondon:

• for models: Yz125
• for makes: Yamaha
• for years: 2005-2021
• brand: Magnum
• mpn: Mx-04125c
• part type: Cylinder

payments pistondon:

• credit card: Visa
• wallet: Paypal
• other

offer pistondon:

• options: Ship-to-home
• sold: 0
• started: June 27, 2025
• availability: In Stock
• quantity: 1

seller pistondon:

• rating: 100.0%
• city: Minford, Ohio
• # reviews: 81580

shipping pistondon:

• class: Standard, Expedited
• service: USPS First Class, USPS Priority Mail, USPS Priority Mail Express Flat Rate Envelope
• transit: 4-11 Days
• type: Fixed
• cost: $0.00
• carrier: USPS

returns pistondon:

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

general pistondon:

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

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