WISECO 9TJ4H9WMD0 Forged Piston Kit Rocker TC97 3.937 10.5

( Brand: Wiseco ), ( Manufacturer Part Number: 9TJ4H9WMD0 ), ( Type: Piston Kit ), ( Cylinder Bore Diameter: 3.937 In ), ( Material: Forged, Aluminum Alloy ), ( California Prop 65 Warning: Warning, And Birth Defects Or Other Reproductive Harm. ), ( Item Weight: 2.7500 ), ( Compatible Make: Harley-davidson ), ( Compatible Model: Rocker ), ( Length: 9.500 ), ( Oem Piston Bore Size: 3.937 In, 3.937in ), ( Package Quantity: Each ), ( Riding Style: Street Motorcycle, Street ), ( Wrist Pin Bearing Included: Yes )

Review WISECO Forged Piston Kit 3.937 10.5 For Harley Rocker fits TRACKER 2008–2009

Introducing the WiseCo 9TJ4H9WMd0 Forged Piston Kit (TC97 3.937 10.5) specifically designed for Harley-Davidson Rocker engines from the years 2008 and 2009. This high-performance piston kit is an excellent upgrade for those seeking enhanced power and durability for their Harley-Davidson motorcycle.

Each forged piston in this kit is meticulously crafted from 2618-T6 aluminum alloy through a forging process. This manufacturing technique results in a stronger and more consistent piston that can withstand the rigors of high-performance applications. The piston crowns are then machined to exacting specifications to ensure optimal combustion efficiency and power output.

The piston skirts are designed with a unique, enhanced coating that reduces friction and wear against the cylinder bore. This coating also provides improved ring sealing, ensuring optimal compression and preventing oil leakage.

These pistons feature a 3.937-inch bore diameter and a 10.5:1 compression ratio. The piston kit includes new piston pins, wrist pins, and piston rings to ensure a proper installation and optimal engine performance.

Additionally, the WiseCo Forged Piston Kit comes with precision-machined piston pin bosses, ensuring a perfect fit and alignment with the connecting rods. The kit also includes new wrist pin bushings and clips for a hassle-free installation process.

In summary, the WiseCo 9TJ4H9WMd0 Forged Piston Kit (TC97 3.937 10.5) is an excellent upgrade for Harley-Davidson Rocker engines from 2008 and 2009. This high-performance piston kit is meticulously crafted from forged aluminum alloy, featuring enhanced coatings for reduced friction and wear, and includes all necessary components for a hassle-free installation process. With improved power output, durability, and efficiency, this piston kit is an investment that Harley-Davidson enthusiasts won't want to miss.

Wiseco 9TJ4H9WMd0 Tracker Forged Piston Kit (TC97 3.937 10.5 for Harley-Davidson Rocker 08-09): Pros, Cons, and Conclusion

The Wiseco 9TJ4H9WMd0 Tracker Forged Piston Kit (TC97 3.937 10.5 for Harley-Davidson Rocker 08-09) is a popular aftermarket upgrade for Harley-Davidson motorcycles. In this analysis, we'll discuss the pros and cons of investing in this piston kit.

1. Enhanced Performance: Forged pistons are stronger and more durable than stock pistons. This results in increased horsepower and torque, providing a more responsive and powerful riding experience.

2. Improved Reliability: Forged pistons are less prone to failure than cast pistons, as they can better withstand the high temperatures and pressures generated during engine operation.

3. Customizable: This kit is available in various compression ratios, allowing riders to fine-tune their engine's performance to suit their specific riding style and requirements.

4. Better Heat Transfer: Forged pistons have a better thermal conductivity, which improves heat transfer between the piston and the cooling system. This results in a more efficient engine that runs cooler and lasts longer.

1. Cost: Forged piston kits like the Wiseco 9TJ4H9WMd0 are more expensive than stock piston kits. The investment required for this upgrade might be a significant deterrent for some riders.

2. Installation Complexity: Installing aftermarket forged pistons can be a complex process that requires specialized tools and expertise. It's essential to ensure the installation is done correctly to avoid potential issues and ensure the best possible performance.

3. Potential Compatibility Issues: While the Wiseco 9TJ4H9WMd0 kit is designed for specific Harley-Davidson models, there is still a chance of compatibility issues arising due to engine variations or modifications. It's crucial to verify that the kit is compatible with your specific motorcycle before making a purchase.

The Wiseco 9TJ4H9WMd0 Tracker Forged Piston Kit offers several advantages, such as enhanced performance, improved reliability, customizability, and better heat transfer. However, its high cost, complex installation process, and potential compatibility issues are worth considering before making a purchase. Ultimately, if you're a serious Harley-Davidson rider looking to extract the maximum performance from your engine, this forged piston kit could be a worthwhile investment. It's essential to carefully weigh the pros and cons and consult with a professional mechanic to ensure a successful installation.

Details:

Made in the USA. Sold in Units of: Kit. Armor Glide skirt coating reduces friction, providing quieter operation and improving scuff resistance. Piston Skirt Coated: Armor Glide Coated.

Each piston kit comes with pistons, rings, pins and cir clips. Item must be in original undamaged unopened packaging. Piston Type: Forged. Any fitment provided is for US Spec model's.

Wiseco Tracker Piston Series has a forged piston crown with generous valve pockets for big valves and cams. For Twin Cam 88/95 bored to 97 CU. Wrist Pin Bearing Included: Yes. Images are for reference purposes only, actual product may vary.

NOTE: requires aftermarket EFI Tuner on fuel-injection model's. Use our shipping packaging to ship back the item, DO NOT tape label directly original manufacturers box. Wiseco went on to making a plethora of innovative motor sports equipment from clutch covers valve kits, including Tracker Forged Piston Kit TC97 3.937 10.5:1, that will not have you questioning the quality or care was put in them. VM-Ring Package.

Oem Piston Bore Size: 3.937 in, 3.937in. Riding Style: Street Motorcycle. Pressure seal groove reduces ring lifting and power loss. After almost a century in the business, Wiseco has been identified as piston manufacturer, but they didn't stop there.

Precision-fit rings selected for each application ultimate sealing. Value-packaged with two pistons, rings, piston pins, and cir clips. Force-fed pin oiling provides enhanced lubrication of the piston. Material: Forged, Aluminum Alloy.

part #: 9tj4h9wmd0 price

• $345.63

specifications pistondon:

• for models: Tracker
• for makes: Harley
• for years: 2008-2009
• brand: Wiseco
• mpn: 9tj4h9wmd0
• type: Piston Kit
• cylinder bore diameter: 3.937 In
• material: Forged, Aluminum Alloy
• california prop 65 warning: Warning, And Birth Defects Or Other Reproductive Harm.
• item weight: 2.7500
• compatible make: Harley-davidson
• compatible model: Rocker
• length: 9.500
• oem piston bore size: 3.937 In, 3.937in
• package quantity: Each
• riding style: Street Motorcycle, Street
• wrist pin bearing included: Yes

payments pistondon:

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

offer pistondon:

• started: May 24, 2026
• sold: 0
• options: Ship-to-home
• quantity: 4
• availability: In Stock

shipping pistondon:

• class: Standard
• cost: $0.00
• type: Fixed
• service: Standard
• transit: 4-6 Days

seller pistondon:

• rating: 99.7%
• city: Parkersburg, West Virginia
• # reviews: 36847

general pistondon:

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

returns pistondon:

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

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