1. Pistons, Rings & Piston Kits Products
  2. sku: 4563446878869532
  3. KB PERFORMANCE MN/J4R8

KB PERFORMANCE MN-J4R8 Forged Piston Kit MN/J4R8 For

fits model: Flstc, Heritage, Softail. make: Harley, Davidson. year: 1988–1999.

J4r8 Kb Performance Mn/j4r8 Forged Piston Kit For 1988-1999 Harley Davidson Flstc Heritage Softail Us

( Brand: Kb Performance ), ( Manufacturer Part Number: MN/J4R8 ), ( Type: Forged Piston Kit ), ( Compatible Year: 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Flstc Heritage Softail Classic ), ( Bundle Description: 1 Pc Genuine Kb Forged Piston Kit ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review KB PERFORMANCE Mn/j4r8 Forged Piston Kit For Harley Davidson Us fits HERITAGE SOFTAIL FLSTC 1988–1999

Introducing the KB Performance MN/J4R8 Forged Piston Kit for 1988-1999 Harley-Davidson FLSTC Heritage Softail motorcycles. This high-performance piston kit is designed to deliver increased power, durability, and reliability for your Softail engine.

The KB Performance MN/J4R8 Forged Piston Kit features forged pistons made from 2618-T6 aluminum alloy. Forged pistons offer superior strength and rigidity compared to cast pistons, ensuring optimal engine performance under heavy loads and high RPMs. The piston crowns are engineered with a dished design to provide increased compression for improved power output.

The piston kit includes eight pistons, each precisely machined to ensure a perfect fit and finish. The piston skirts are designed to minimize friction with the cylinder bore, reducing wear and improving ring seal. The pistons also feature a thin-walled design to reduce weight and improve engine breathing.

The KB Performance MN/J4R8 Forged Piston Kit is engineered to work seamlessly with your Harley-Davidson's factory connecting rods and crankshaft. The pistons are designed to meet or exceed OEM specifications for clearance and ring gap, ensuring a simple and straightforward installation process.

Additionally, the KB Performance MN/J4R8 Forged Piston Kit includes new piston rings, including a top compression ring, second compression ring, and an oil control ring. These rings are precision-machined from high-quality materials to provide excellent sealing and durability.

In summary, the KB Performance MN/J4R8 Forged Piston Kit is an excellent upgrade for any 1988-1999 Harley-Davidson FLSTC Heritage Softail looking for increased power, durability, and reliability. With forged pistons, precise machining, and high-quality piston rings, this kit is designed to deliver top-tier performance and longevity for your Softail engine.

Buying a KB Performance MN/J4R8 forged piston kit for a 1988-1999 Harley-Davidson FLSTC Heritage Softail motorcycle comes with several pros and cons that every potential buyer should consider before making a decision.

Pros:

1. Enhanced Performance: Forged pistons offer increased strength and durability compared to cast pistons. As a result, they can handle higher compression ratios and temperatures, leading to improved engine performance.

2. Longevity: Forged pistons have a longer lifespan due to their superior strength and durability. They are less prone to wear and tear and can handle the rigors of high-performance riding.

3. Better Thermal Conductivity: Forged pistons have better thermal conductivity, which helps them dissipate heat more efficiently. This can lead to a cooler-running engine, which is beneficial for the overall health of the motorcycle.

4. Customizability: KB Performance offers various options for piston sizes, which allows riders to customize their engine for their specific riding style and preferences.

Cons:

1. Cost: Forged pistons are more expensive than cast pistons. The cost of a KB Performance MN/J4R8 forged piston kit can be a significant investment, especially for budget-conscious riders.

2. Installation Complexity: Installing forged pistons requires specialized knowledge and tools. It's important to ensure that the installation is done correctly to avoid any potential issues.

3. Potential Engine Modifications: Installing forged pistons may require additional engine modifications, such as upgraded rings, cylinder sleeves, or a crankshaft grind. These modifications can add to the overall cost and complexity of the project.

Conclusion:

A KB Performance MN/J4R8 forged piston kit for a 1988-1999 Harley-Davidson FLSTC Heritage Softail can provide significant performance benefits and improved engine longevity. However, the high cost, installation complexity, and potential engine modifications are important considerations. Ultimately, the decision to purchase this kit depends on an individual's riding style, budget, and technical expertise.

Recommendation:

If you're an experienced rider with a significant budget and a desire for high-performance, then a KB Performance MN/J4R8 forged piston kit may be an excellent investment. However, if you're a budget-conscious rider or not confident in your installation abilities, then it may be best to consider other options. Before making a decision, it's recommended to consult with a Harley-Davidson dealer or a trusted mechanic to assess the feasibility and benefits of this upgrade for your specific motorcycle.

Details:

Forged Piston Kit - .010in. KB Forged Piston Kit for 1988 - 1999 Harley Davidson FLSTC Heritage Softail us: Status: In Stock.

part #: mnj4r8 prices

  • $320.24-$342.64

specifications pistondon:

  • for models: Flstc, Heritage, Softail
  • for makes: Harley, Davidson
  • for years: 1988-1999
  • brand: Kb Performance
  • mpn: Mn/j4r8
  • type: Forged Piston Kit
  • compatible year: 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988
  • compatible make: Harley Davidson
  • compatible model: Flstc Heritage Softail Classic
  • bundle description: 1 Pc Genuine Kb Forged Piston Kit
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement

payments pistondon:

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

general pistondon:

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

returns pistondon:

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

seller pistondon:

  • city: Multiple warehouses
  • # reviews: 7408
  • rating: 97.7%

offer pistondon:

  • started: February 21, 2025
  • quantity: 1
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock

shipping pistondon:

  • transit: 4-8 Days
  • service: Standard
  • class: Standard
  • cost: $0.00
  • type: Fixed
for models: flstc, heritage, softail, for makes: harley, davidson, for years: 1988-1999, type: forged piston kit, compatible year: 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988, compatible make: harley davidson, compatible model: flstc heritage softail classic, bundle description: 1 pc genuine kb 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: 4563446878869532,

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