MAMURA PK242N Piston Kit Rings .50

( Brand: Mamura ), ( Manufacturer Part Number: PK242N ), ( Type: Piston Kit ), ( Country Of Origin: United States )

Review MAMURA Piston Kit Rings Yamaha .50 Over fits 4000 YFM 1993–1999

Introducing the Mamura PK242N Piston Rings Kit, specifically designed for Yamaha YFM 4000 and 50 models produced between 1993 and 1999. This kit comprises a complete set of high-quality piston rings to ensure optimal engine performance.

The inner piston rings in this kit are engineered from a nitrided chrome-silicon alloy. Nitriding is a surface treatment process that enhances the rings' durability and resistance to scuffing, pitting, and wear. The chrome-silicon alloy also provides excellent sealing properties, ensuring a tight seal between the piston and cylinder wall to prevent oil leakage and compressive gas loss.

The outer piston rings in the Mamura PK242N Kit are made from a compression-bonded, low-tension, molybdenum-aluminum alloy. This material combination offers superior strength, flexibility, and resistance to expansion and contraction during engine operation. The low-tension design ensures a proper ring end gap for efficient combustion and reduced engine noise.

These piston rings are manufactured to precise tolerances and dimensions, ensuring a perfect fit for your Yamaha engine. The rings are also chamfered at the edges to facilitate easy installation and reduce the risk of damage to the piston or cylinder wall.

The Mamura PK242N Piston Rings Kit comes with detailed installation instructions to make the replacement process as smooth as possible. The rings are also packed in protective packaging to prevent damage during shipping.

Investing in the Mamura PK242N Piston Rings Kit is an excellent choice for extending the life of your Yamaha YFM 4000 or 50 engine. By providing a perfect seal, these rings help maintain engine compression, improve fuel efficiency, and reduce exhaust emissions. With their superior quality and durability, you can enjoy a smoother, more reliable riding experience for years to come.

Buying Mamura PK242N Piston Rings for Yamaha YFM 4000 50 (1993-1999): A Comprehensive Analysis

Mamura PK242N piston rings are a popular aftermarket choice for Yamaha YFM 4000 50 ATVs manufactured between 1993 and 1999. These piston rings offer several benefits, but like any aftermarket part, they come with their own sets of advantages and disadvantages. In this analysis, we will discuss the pros and cons of purchasing Mamura PK242N piston rings for your Yamaha ATV.

1. Enhanced Engine Performance: Mamura PK242N piston rings are designed to provide better sealing, allowing for improved engine performance. This leads to increased horsepower and torque.

2. Durability: These piston rings are manufactured using high-quality materials, ensuring they can withstand the rigors of off-road riding. They are known for their longevity and resistance to wear and tear.

3. Easy Installation: Installing Mamura PK242N piston rings is a relatively straightforward process. Many users have reported that they were able to complete the installation themselves, saving money on labor costs.

4. Cost-Effective: Compared to OEM piston rings, Mamura PK242N piston rings are generally more affordable. This makes them an attractive option for budget-conscious consumers.

1. Potential for Ring Gap: Some users have reported experiencing ring gap issues after installing Mamura PK242N piston rings. Ring gap can lead to engine damage and decreased performance.

2. Requires Careful Installation: While the installation process is relatively simple, it requires careful attention to detail. Failure to properly install the piston rings can result in damage to the engine or other components.

3. Limited Warranty: Mamura PK242N piston rings come with a limited warranty, which may not cover all potential issues. This can be a concern for consumers who want peace of mind when investing in aftermarket parts.

After evaluating the pros and cons of purchasing Mamura PK242N piston rings for Yamaha YFM 4000 50 ATVs, it is clear that these rings offer several benefits, including enhanced engine performance, durability, easy installation, and cost-effectiveness. However, they also come with potential drawbacks, such as the risk of ring gap and the requirement for careful installation.

Based on the information presented, we recommend purchasing Mamura PK242N piston rings for your Yamaha YFM 4000 50 ATV if you are looking for improved engine performance, durability, and cost savings. However, it is essential to carefully follow the installation instructions and pay close attention to the installation process to minimize the risk of ring gap and other potential issues. We also recommend checking with your local ATV dealer or mechanic for their professional opinion before making a purchase.

Details:

Shipping Details.: Mamura Piston Kit W/Rings 93-99 Yamaha YFM 4000 .50 Over PK242N. Buyer pays fixed shipping costs.

part #: pk242n price

• $75.00

specifications pistondon:

• for models: 4000, Yfm
• for makes: Yamaha
• for years: 1993-1999
• brand: Mamura
• mpn: Pk242n
• type: Piston Kit
• country of origin: United States

returns pistondon:

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

general pistondon:

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

payments pistondon:

• wallet: Paypal
• credit card: Discover
• other

seller pistondon:

• city: Kansas City, Kansas
• rating: 99.6%
• # reviews: 470

shipping pistondon:

• class: Expedited
• service: USPS Priority Mail
• carrier: USPS
• transit: 5-11 Days
• cost: $0.00
• type: Fixed

offer pistondon:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• started: March 26, 2026