WISECO MN-73FC Top End Kit Engine Pistons MN/73FC

( Brand: Wiseco ), ( Manufacturer Part Number: MN/73FC ), ( Compatible Year: 2012 2011 2010 2009 2008 2007 2006 2005 ), ( Compatible Model: Sportsman 800 Efi ), ( Bundle Description: 1 Pc Genuine Wiseco Top End Kits ), ( Type: Top End Kits ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review WISECO Mn/73fc Top End Kit Polaris Engine Pistons Pf fits SPORTSMAN EFI 800 2005–2012

Introducing the WiseCo MN/73FC Top End Kit for the 2005-2012 Polaris Sportsman 800 EFI engine. This top-of-the-line kit is engineered to provide superior performance and durability for your vehicle.

The WiseCo Top End Kit includes four high-performance pistons, each crafted from forged aluminum for enhanced strength and longevity. The pistons feature a compression height of 10.24 inches and a total height of 11.15 inches, providing an optimal power band and increased horsepower. The piston skirts are designed to minimize friction and ensure a perfect seal in the cylinder bore.

The pistons are matched with WiseCo's premium ring set, which includes a compression ring, an oil control ring, and a top oil control ring. These rings are made from high-quality materials that ensure a proper seal and optimal ring grip, resulting in improved combustion efficiency and reduced engine wear.

The WiseCo Top End Kit also includes new cylinder heads, which feature improved port design and larger intake and exhaust valves for increased airflow and better engine breathing. The cylinder heads are machined to exacting tolerances for a perfect fit and optimal engine performance.

The kit also includes new camshafts, which are designed to provide improved valve lift and duration for increased power and torque. The camshafts are made from durable material and are precision ground to ensure a perfect fit and optimal engine performance.

The WiseCo MN/73FC Top End Kit is designed to be a direct replacement for the factory parts, making installation easy and straightforward. The kit includes all necessary hardware for installation, and detailed instructions are provided to ensure a successful installation.

In summary, the WiseCo MN/73FC Top End Kit for the 2005-2012 Polaris Sportsman 800 EFI engine is a high-performance upgrade that provides increased power, improved engine breathing, and enhanced durability. The kit includes forged aluminum pistons, a premium ring set, new cylinder heads, and new camshafts, all designed to work together to provide optimal engine performance.

The Wiseco MN/73FC top end kit for the 2005-2012 Polaris Sportsman 800 EFI engine is a popular aftermarket option for those looking to improve performance and durability. Here are some pros and cons to consider before making a purchase:

1. Enhanced Performance: The Wiseco pistons are designed to provide better compression and improved power output, resulting in increased horsepower and torque.

2. Enhanced Durability: The kit includes not only the pistons but also the rings, wrist pins, and other related components. This can help improve the overall durability of the engine and reduce the need for frequent repairs.

3. Improved Compatibility: The Wiseco kit is specifically designed for the Polaris Sportsman 800 EFI engine, ensuring a proper fit and function.

4. High-Quality Materials: Wiseco is known for using high-quality materials in their pistons, including forged aluminum and steel, which can help improve performance and durability.

1. Cost: The Wiseco top end kit can be more expensive than stock pistons and rings. The cost may be a deterrent for some buyers.

2. Installation Complexity: Installing a top end kit can be a complex and time-consuming process, requiring specialized tools and knowledge.

3. Potential for Engine Damage: Improper installation or use of improperly sized components can result in engine damage.

The Wiseco MN/73FC top end kit for the Polaris Sportsman 800 EFI engine offers several benefits, including improved performance, durability, and compatibility. However, the cost and installation complexity may be a deterrent for some buyers. It's essential to ensure proper installation and use of the kit to avoid potential engine damage.

If you're looking to improve the performance and durability of your Polaris Sportsman 800 EFI engine and are willing to invest in a high-quality aftermarket option, the Wiseco MN/73FC top end kit could be an excellent choice. However, if the cost and installation complexity are concerns, you may want to consider other options, such as stock pistons and rings or a less expensive aftermarket alternative. Ultimately, the decision should be based on your specific needs, budget, and technical abilities.

part # mn73fc price

• $403.54

specifications atvsienna:

• for models: Efi, 800, Sportsman
• for makes: Polaris
• for years: 2005-2012
• brand: Wiseco
• manufacturer part number: MN/73FC
• compatible year: 2012 2011 2010 2009 2008 2007 2006 2005
• compatible model: Sportsman 800 Efi
• bundle description: 1 Pc Genuine Wiseco Top End Kits
• type: Top End Kits
• core charge: Free No Core Charge
• fitment type: Direct Replacement

offer atvsienna:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: November 23, 2025
• quantity: 1

payments atvsienna:

• other
• credit card: Discover
• wallet: Google-pay

returns atvsienna:

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

shipping atvsienna:

• transit: 4-7 Days
• service: Standard
• class: Standard
• cost: $0.00
• type: Fixed

general atvsienna:

• ATV, Side-by-Side UTV Parts Accessories > Engines Engine Parts > Other Engine Parts
• condition: New

seller atvsienna:

• # reviews: 13913
• rating: 98.1%

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