YAMAHA 4V2-11630-00 Standard Piston Kit

( Manufacturer Part Number: 4V2-11630-00 ), ( Part Type: Piston ), ( Country Of Origin: United States ), ( Manufacturer Warranty: Unspecified Length ), ( Storage Location: K6 Mot-n Buk 18 )

Review YAMAHA Oem Standard Piston Kit Assembly fits YZ125H 1981

Introducing the Yamaha 4V2-11630-00 Standard Piston Kit, an essential replacement part for any enthusiast or mechanic working on a 1981 Yamaha YZ125H motorcycle. This piston kit is meticulously engineered by Yamaha to ensure optimal performance and reliability for your classic two-wheel machine.

The piston itself is a critical component of your engine's combustion process. This kit includes a new, precision-machined piston that features a compact and lightweight design. The piston's crown is meticulously finished to ensure a perfect fit within the engine's cylinder, while the skirt is designed to minimize friction with the engine's connecting rod for maximum efficiency.

Moreover, the piston ring set is also included in this kit. These rings are specifically designed to work in harmony with the new piston and include a compression ring, an oil control ring, and a top ring. These rings are critical for sealing the combustion chamber and controlling oil consumption, ensuring a smooth and efficient engine operation.

The piston pin and retaining clips are also part of this comprehensive kit. The piston pin is a critical component that connects the piston to the connecting rod, and the retaining clips securely hold the piston in place. These parts are manufactured to Yamaha's stringent specifications to ensure a perfect fit and function.

In conclusion, the Yamaha 4V2-11630-00 Standard Piston Kit is an essential upgrade for any 1981 Yamaha YZ125H motorcycle. This kit includes a new piston, piston rings, piston pin, and retaining clips, all engineered to Yamaha's exacting standards to provide optimal performance and reliability. Whether you're restoring a classic bike or simply maintaining it, this piston kit is an investment in your motorcycle's future.

Pros and Cons of Buying Yamaha 4V2-11630-00 1981 YZ125H Standard Piston Kit

1. Replacement for Worn-Out Piston: The primary reason for purchasing this piston kit is to replace a worn-out or damaged piston in your 1981 Yamaha YZ125H. This kit is specifically designed for this model and year, ensuring a proper fit and function.

Pro: Ensures reliable engine operation by replacing a worn-out or damaged piston.

2. Enhanced Engine Performance: The piston kit may provide improved engine performance, such as increased horsepower and torque, depending on the condition of the original piston and rings.

Pro: Improved engine performance can result in a more enjoyable riding experience.

3. OEM (Original Equipment Manufacturer) Part: Purchasing an OEM part directly from the manufacturer guarantees that it is designed, engineered, and manufactured to the same standards as the original part on your motorcycle.

Pro: OEM parts are typically of high quality and can offer peace of mind.

4. Compatibility: This piston kit is designed for the 1981 Yamaha YZ125H, ensuring compatibility with your motorcycle.

Pro: Compatibility minimizes the risk of purchasing a part that does not fit properly.

5. Availability: OEM parts may be more readily available from authorized Yamaha dealers or their online stores, making it easier to obtain the necessary part for your motorcycle.

Pro: Availability reduces the waiting time for a repair or restoration project.

6. Cost: OEM parts can be expensive, especially when compared to aftermarket alternatives. This piston kit is no exception.

Con: The high cost of an OEM piston kit may deter some buyers, especially those working on a tight budget.

7. Installation: Installing a piston kit requires specialized tools, knowledge, and experience. If you are not confident in your ability to perform the installation yourself, it may be best to have it done by a professional.

Con: The cost of professional installation adds to the overall cost of the piston kit.

In conclusion, the Yamaha 4V2-11630-00 1981 YZ125H Standard Piston Kit offers several advantages, including reliable engine operation, potential performance improvements, OEM quality, compatibility, and availability. However, the high cost and the need for professional installation may be disadvantages for some buyers. Ultimately, the decision to purchase this piston kit depends on your budget, skill level, and the importance of having a genuine OEM part for your motorcycle.

Recommendation: If you value OEM quality, reliability, and compatibility, and have the budget for it, the Yamaha 4V2-11630-00 1981 YZ125H Standard Piston Kit is a recommended choice for replacing a worn-out or damaged piston in your motorcycle. If you are on a tight budget or prefer aftermarket alternatives, consider researching and comparing aftermarket piston kits for your motorcycle.

Details:

Yamaha Cruisers. Spotlight: A Day Inside . Fits: 1981 Yamaha YZ125H. 1978 HONDA CR125M Elsinore OEM Air Cleaner Side Cover ONLY 17211-400-000.

Yamaha MX / ATV. Ensures precise engine performance and reliability. The image to watch on YouTube. Genuine Yamaha OEM standard piston kit assembly for the 1981 YZ125H model.

part #: 4v21163000 prices

• $99.89-$150.71

specifications pistondon:

• for models: Yz125h
• for makes: Yamaha
• for years: 1981
• mpn: 4v2-11630-00
• part type: Piston
• country of origin: United States
• manufacturer warranty: Unspecified Length
• storage location: K6 Mot-n Buk 18

shipping pistondon:

• type: Fixed
• carrier: FedEx, USPS
• cost: $0.00
• service: FedEx Ground / FedEx Home Delivery, USPS Priority Mail, FedEx 2Day, Overnight
• transit: 3-6 Days
• class: Standard, Expedited, One-day

payments pistondon:

• credit card: Diners-club
• wallet: Google-pay
• other

seller pistondon:

• # reviews: 206952
• city: Odessa, Florida
• rating: 99.3%

returns pistondon:

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

offer pistondon:

• started: January 25, 2026
• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 1

general pistondon:

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

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