WISECO 4891P1 Forged Pistons Jugs Cylinders XB12 10.5 NV3-87

( Brand: Wiseco ), ( Manufacturer Part Number: 4891P1 ), ( Type: Piston )

Review WISECO Forged 10.5 Pistons And Jugs Cylinders #nv3-87 fits BUELL

Introducing the WiseCo 4891P1 Buell XB12 Forged 10.5: pistons, jugs, and cylinders, specifically designed for the NV3-87 engine. These high-performance components are engineered to deliver exceptional power, durability, and reliability for your motorcycle.

The heart of this kit is the forged 10.5:1 compression pistons. Crafted from a single piece of high-strength aluminum alloy, these pistons are meticulously machined to ensure perfect fit and function. The forged construction process results in a piston that is not only stronger but also lighter than its cast counterparts, reducing rotating mass for improved engine response. The piston tops are designed with a dished shape to optimize combustion and increase power output.

The piston rings are made of a high-temperature, nitrided steel alloy to ensure a perfect seal, even under the most demanding conditions. The top compression ring is a nitrided, chrome-molybdenum alloy for maximum durability and longevity. The second and oil control rings are made of precision-ground, nitrided steel to ensure a snug fit and exceptional sealing performance.

The cylinders are engineered to provide excellent heat dissipation and durability. They are made of a high-performance, aluminum alloy, which is known for its excellent thermal conductivity and resistance to corrosion. The cylinders feature a bore size of 87.0mm (3.425 inches) and are designed to provide a perfect fit and finish, ensuring optimal engine performance.

The WiseCo 4891P1 Buell XB12 Forged 10.5 pistons, jugs, and cylinders are the ideal choice for riders who demand the best in power, durability, and reliability from their motorcycle. These components are designed to provide a significant power increase, improved engine response, and the peace of mind that comes with using high-quality, aftermarket parts from a trusted supplier.

In summary, the WiseCo 4891P1 Buell XB12 Forged 10.5 pistons, jugs, and cylinders are a set of high-performance components designed to deliver exceptional power, durability, and reliability for the NV3-87 engine. The forged pistons are made of high-strength aluminum alloy, and the cylinders are made of a high-performance, aluminum alloy. The piston rings are made of high-temperature, nitrided steel alloy for maximum durability and sealing performance. These components are the perfect choice for riders who demand the best in power, durability, and reliability from their motorcycle.

The Wiseco 4891P1 Buell XB12 forged 10.5: pistons, jugs, and cylinders NV3-87 are aftermarket performance parts designed for the Buell XB12 motorcycle. These components are forged, which means they are made from a single piece of metal that is shaped under extreme pressure. Forged components are known for their strength, durability, and improved thermal conductivity. Here are some potential pros and cons of buying these parts.

1. Increased Power: Forged pistons are stronger than their cast counterparts. They can handle more power and heat, allowing for increased engine output.

2. Improved Thermal Conductivity: Forged pistons have better thermal conductivity, which means they can dissipate heat more effectively. This can help prevent piston damage and improve engine performance.

3. Enhanced Durability: Forged pistons are more durable than cast pistons, as they are less prone to cracking or failure under high loads.

4. Customizability: Forged pistons can be customized to meet specific engine requirements, allowing for optimized engine performance.

1. Cost: Forged pistons are more expensive than cast pistons, making them a more significant investment for motorcycle owners.

2. Installation Complexity: Installing forged pistons requires specialized tools and knowledge, which can add to the cost and complexity of the project.

3. Weight: Forged pistons are denser and heavier than cast pistons, which can impact engine performance and fuel efficiency.

4. Potential Clearance Issues: Installing forged pistons may require adjustments to engine clearances, which can add to the installation cost and complexity.

The decision to buy Wiseco 4891P1 Buell XB12 forged 10.5: pistons, jugs, and cylinders NV3-87 depends on the individual motorcycle owner's goals and priorities. For those seeking increased power, improved durability, and customizability, these parts may be worth the investment, despite the higher cost and installation complexity. Conversely, for those who prioritize cost savings and ease of installation, cast pistons may be a more suitable option.

If you are looking to maximize the performance of your Buell XB12 motorcycle and are willing to invest in high-quality, durable components, the Wiseco 4891P1 forged pistons are an excellent choice. However, it is essential to carefully consider the installation requirements and costs before making a purchase. Additionally, ensure that you source these parts from a reputable dealer to ensure their authenticity and quality.

Details:

No broken cooling fins or physical damage. Please pack the item securely. Pistons are Wiseco PN 4891P1, 10.5:1 compression, standard bore. If you purchase a set of forks for 30-40 year old bike, the seals should be replaced.

If you purchase brake parts, they may need to be rebuilt. All rings, pins, and clips are included. Cylinder walls are clean and smooth, but they should get a cleanup hone anyway. They've got some normal scuffing on the skirts, but no damage or excessive wear.

Used set of jugs and pistons, came out an 06 Ulysses. Items will come with everything shown in the photos, nothing more or less. If hardware is included, it may be incomplete the small bits get lost sometimes or damaged we regularly include as a reference for replacement. CDs computers can only be tested on the bike.

They may be dirty, have signs of previous use, or need repair/maintenance.

part #: 4891p1 prices

• $63.13-$174.94

specifications pistondon:

• for models: Buell
• brand: Wiseco
• mpn: 4891p1
• type: Piston

payments pistondon:

• other
• credit card: Mastercard
• wallet: Apple-pay

offer pistondon:

• best offers: True
• quantity: 1
• options: Ship-to-home
• started: January 22, 2026
• sold: 0
• availability: In Stock

shipping pistondon:

• carrier: UPS, USPS
• class: Standard
• type: Calculated
• service: UPS Ground, USPS Ground Advantage
• transit: 2-6 Days
• cost: $41.31

seller pistondon:

• # reviews: 2133
• city: Clio, Michigan
• rating: 99.7%

general pistondon:

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

returns pistondon:

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

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