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  3. KB PERFORMANCE MN/N4QP

KB PERFORMANCE MN-N4QP Forged Piston Kit Yv MN/N4QP For

fits model: Flstf, Fat, Boy. make: Harley, Davidson. year: 2007–2017.

N4qp Kb Performance Mn/n4qp Super-duty Forged Piston Kit For 2007-2017 Harley Davidson Flstf Fat Boy Yv

( Brand: Kb Performance ), ( Manufacturer Part Number: MN/N4QP ), ( Type: Super-duty Forged Piston Kit ), ( Compatible Year: 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Flstf Fat Boy ), ( Bundle Description: 1 Pc Genuine Kb Super-duty Forged Piston Kit ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review KB PERFORMANCE Mn/n4qp Super duty Forged Piston Kit For Harley Davidson Yv fits FAT BOY FLSTF 2007–2017

Introducing the KB Performance MN/N4QP Super-Duty Forged Piston Kit, specifically designed for Harley-Davidson FLSTF Fat Boy models manufactured between 2007 and 2017. This high-performance piston kit is a must-have for riders seeking enhanced power, durability, and reliability for their Fat Boy motorcycle.

The KB Performance MN/N4QP pistons are crafted from forged 2618-T6 aluminum alloy, ensuring exceptional strength and consistent dimensions for optimal engine performance. Each piston undergoes a rigorous manufacturing process, including precise machining and coating with a high-performance piston skirt coating.

These forged pistons deliver increased power and torque by allowing for higher compression ratios. The result is a more responsive engine that delivers improved acceleration and overall performance. Additionally, the forged pistons' increased strength and durability help extend engine life, even during high-rpm racing conditions.

The KB Performance MN/N4QP piston kit includes:

1. Four (4) forged pistons

2. Four (4) piston rings (two compression rings, one oil control ring, and one skirt scraper ring)

3. Four (4) piston pins

4. Four (4) piston pin bushings

5. Four (4) piston pin clips

6. Four (4) piston pin retainers

7. Four (4) piston pin gaskets

8. Four (4) piston ring end gaps

Please note that installation of this kit requires professional experience and the proper installation tools. For optimal performance, it is recommended to accompany this piston kit with compatible connecting rods and cylinder heads.

In summary, the KB Performance MN/N4QP Super-Duty Forged Piston Kit is a top-tier upgrade for Harley-Davidson FLSTF Fat Boy riders seeking improved power, durability, and reliability. With forged aluminum pistons, high-performance coatings, and comprehensive kit contents, this piston kit delivers the perfect combination of performance and longevity for your Fat Boy engine.

Buying a KB Performance MN/N4QP super-duty forged piston kit for a 2007-2017 Harley-Davidson FLSTF Fat Boy YV can be a consideration for those looking to enhance the performance of their motorcycle. Here are some pros and cons of this upgrade:

Pros:

1. Increased Power: Forged pistons offer improved strength and durability compared to stock pistons. They can handle higher compression ratios, leading to increased horsepower and torque.

2. Improved Thermal Stability: Forged pistons have better thermal stability, which means they are less prone to warping or cracking under high heat conditions.

3. Enhanced Engine Life: Forged pistons are known for their longevity and can help extend the life of the engine.

4. Customization: Upgrading to forged pistons allows for customization and personalization of the engine, which can be appealing to some riders.

Cons:

1. Cost: Forged piston kits can be expensive compared to stock pistons. The cost of the KB Performance MN/N4QP super-duty forged piston kit may be a significant investment for some riders.

2. Installation: Installing the forged piston kit requires specialized tools and knowledge. It is recommended that the installation be done by a professional to ensure proper fitment and function.

3. Potential Power Roll-On: Some riders have reported power roll-on issues with forged pistons. This can cause the engine to lose power when coming out of a corner or when accelerating from a stop.

Conclusion:

The decision to buy a KB Performance MN/N4QP super-duty forged piston kit for a 2007-2017 Harley-Davidson FLSTF Fat Boy YV depends on individual riding preferences and budget. For those who prioritize power, durability, and customization, the benefits of forged pistons may outweigh the costs and installation challenges. However, for riders on a tight budget or those who prioritize ease of installation, a stock piston kit may be a more practical choice. Ultimately, it is essential to weigh the pros and cons carefully and consider the long-term benefits of this upgrade before making a purchase.

Recommendation:

If you have decided to purchase a forged piston kit for your Harley-Davidson, it is recommended to work with a reputable dealer or installer to ensure proper fitment and function. Additionally, consider investing in a high-quality piston ring set and cylinder hones to ensure optimal engine performance. Finally, be prepared for the costs associated with the upgrade, including the cost of the kit, installation, and any necessary modifications to the engine or bike.

Details:

Super-Duty Forged Piston Kit 117ci. Oversized to 4.135in. KB Super-Duty Forged Piston Kit for 2007 - 2017 Harley Davidson FLSTF Fat Boy yv: Status: In Stock.

part #: mnn4qp price

  • $396.69

specifications pistondon:

  • for models: Flstf, Fat, Boy
  • for makes: Harley, Davidson
  • for years: 2007-2017
  • brand: Kb Performance
  • mpn: Mn/n4qp
  • type: Super-duty Forged Piston Kit
  • compatible year: 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007
  • compatible make: Harley Davidson
  • compatible model: Flstf Fat Boy
  • bundle description: 1 Pc Genuine Kb Super-duty Forged Piston Kit
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement

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offer pistondon:

  • sold: 0
  • started: November 28, 2025
  • options: Ship-to-home
  • quantity: 1
  • availability: In Stock

general pistondon:

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

returns pistondon:

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

seller pistondon:

  • city: Multiple warehouses
  • rating: 98.2%
  • # reviews: 14207

shipping pistondon:

  • type: Fixed
  • cost: $0.00
  • transit: 5-8 Days
  • class: Standard
  • service: Standard
for models: flstf, fat, boy, for makes: harley, davidson, for years: 2007-2017, type: super-duty forged piston kit, compatible year: 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007, compatible make: harley davidson, compatible model: flstf fat boy, bundle description: 1 pc genuine kb super-duty forged piston kit, core charge: free no core charge, fitment type: direct replacement,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 9108433551794632,

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  • Offer #1: $396.69 price + $0.00 shipping estimate = $396.69* total. Super-Duty Forged Piston Kit (117ci.) - .010in.FREE SHIPPING

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