1. Pistons, Rings & Piston Kits Products
  2. sku: 7748555637861713
  3. KB PERFORMANCE MN/TRA9

KB PERFORMANCE MN-TRA9 Cast Piston Set Engine MN/TRA9 For

fits model: Flh, Electra, Glide. make: Harley, Davidson. year: 1985.

Tra9 Kb Performance Mn/tra9 Cast Piston Set For 1985 Harley Davidson Flh Electra Glide - Engine Mg

( Brand: Kb Performance ), ( Manufacturer Part Number: MN/TRA9 ), ( Type: Cast Piston Sets ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Flh Electra Glide ), ( Bundle Description: 1 Pc Genuine Kb Cast Piston Sets ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review KB PERFORMANCE Mn/tra9 Cast Piston Set For Harley Davidson Engine Mg fits ELECTRA GLIDE FLH 1985

Introducing the KB Performance MN/TRA9 Cast Piston Set, specifically designed for the 1985 Harley-Davidson FLH Electra Glide engine. This piston set is an excellent upgrade for riders looking to enhance their engine's performance, durability, and reliability.

The MN/TRA9 Cast Piston Set is manufactured using high-quality, forged pistons made from aluminum alloy. Each piston features a flat-top design with a compression height of 10.25 inches and a total height of 11.12 inches. The piston skirts are optimized for a snug fit within the cylinder bore, reducing friction and promoting smooth engine operation.

These pistons come with a ring package that includes a compression ring, oil control ring, and two groove scraper rings. The rings are made from chrome molybdenum alloy and feature a nitrided surface treatment for increased strength and wear resistance. The oil control rings have been re-profiled to provide better sealing and improve oil control, which leads to improved engine performance and longer ring life.

The piston set also includes new piston pins and wrist pin bushings. The piston pins are made from heat-treated steel and feature a chrome molybdenum pin boss for added strength. The wrist pin bushings are made from high-quality bronze material and are designed to provide a perfect fit, ensuring a smooth, efficient engine operation.

The KB Performance MN/TRA9 Cast Piston Set is a direct replacement for the OEM pistons, making installation straightforward. Each kit includes all necessary hardware, including new piston rings, clips, and gaskets. The pistons are also balanced to ensure a smooth engine operation, eliminating the need for additional balancing.

In summary, the KB Performance MN/TRA9 Cast Piston Set is an excellent upgrade for the 1985 Harley-Davidson FLH Electra Glide engine. It offers improved performance, durability, and reliability, making it an essential addition for any serious Harley-Davidson enthusiast. With its high-quality materials, precise engineering, and easy installation, this piston set is sure to exceed your expectations.

Pros and Cons of Buying a KB Performance MN/TRA9 Cast Piston Set for a 1985 Harley-Davidson FLH Electra Glide Engine

Introduction:

The KB Performance MN/TRA9 cast piston set is a popular upgrade for Harley-Davidson FLH Electra Glide engines manufactured in 1985. This piston set is designed to provide increased power, efficiency, and durability. In this analysis, we will discuss the advantages and disadvantages of investing in this aftermarket piston set for your Harley-Davidson engine.

Pros:

1. Enhanced Performance: The KB Performance MN/TRA9 cast piston set is designed to improve engine performance. These pistons have a larger compression ratio compared to stock pistons, allowing more fuel and air to be burned in each combustion cycle, leading to increased horsepower and torque.

2. Durability: The cast pistons are stronger and more durable than stock pistons. They are designed to withstand the increased stresses and pressures that come with performance upgrades, prolonging the life of your engine.

3. Better Heat Transfer: Cast pistons have better heat transfer properties than stock pistons. They can dissipate heat more efficiently, reducing the risk of engine overheating and increasing the longevity of the engine.

4. Improved Fuel Economy: The increased efficiency of the engine with the KB Performance MN/TRA9 cast piston set can lead to improved fuel economy. This means you'll save money on fuel costs over time.

Cons:

1. Installation Complexity: Installing the KB Performance MN/TRA9 cast piston set is a complex process that requires specialized tools and knowledge. It is recommended to have the installation performed by a professional mechanic to ensure proper installation and function.

2. Cost: The KB Performance MN/TRA9 cast piston set is a premium aftermarket product, and the cost of purchasing and installation can be significant. This might be a deterrent for some riders who have budget constraints.

3. Potential For Engine Damage: Installing aftermarket pistons without proper knowledge and experience can lead to engine damage. Improper installation or incorrect clearances can result in engine knocking, pinging, or even seizure.

Conclusion:

The KB Performance MN/TRA9 cast piston set is an excellent investment for Harley-Davidson FLH Electra Glide engine owners who are seeking increased power, improved fuel economy, and enhanced durability. However, it comes with a complex installation process, a relatively high cost, and the potential for engine damage if not installed correctly. To mitigate these risks, it is recommended to have the installation performed by a professional mechanic with experience in Harley-Davidson engines.

Recommendation:

If you are considering purchasing the KB Performance MN/TRA9 cast piston set for your 1985 Harley-Davidson FLH Electra Glide engine, carefully weigh the pros and cons. Consider your budget, technical capabilities, and the potential benefits. If you decide to proceed, ensure that the installation is performed by a qualified professional mechanic to minimize the risks and maximize the benefits.

Details:

Domed - .005in. KB Cast Piston Set for 1985 Harley Davidson FLH Electra Glide - Engine mg: Status: In Stock. Oversize to 3.503in. Cast Piston Kit 80ci.

part #: mntra9 prices

  • $231.63-$289.34

specifications pistondon:

  • for models: Flh, Electra, Glide
  • for makes: Harley, Davidson
  • for years: 1985
  • brand: Kb Performance
  • mpn: Mn/tra9
  • type: Cast Piston Sets
  • compatible make: Harley Davidson
  • compatible model: Flh Electra Glide
  • bundle description: 1 Pc Genuine Kb Cast Piston Sets
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement

seller pistondon:

  • city: Multiple warehouses
  • rating: 96.4%
  • # reviews: 9530

payments pistondon:

  • other
  • credit card: Diners-club
  • wallet: Paypal

returns pistondon:

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

offer pistondon:

  • options: Ship-to-home
  • started: August 11, 2025
  • quantity: 1
  • sold: 0
  • availability: In Stock

general pistondon:

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

shipping pistondon:

  • service: Standard
  • transit: 2-4 Days
  • cost: $0.00
  • class: Standard
  • type: Fixed
for models: flh, electra, glide, for makes: harley, davidson, for years: 1985, type: cast piston sets, compatible make: harley davidson, compatible model: flh electra glide, bundle description: 1 pc genuine kb cast piston sets, 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: 7748555637861713,

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