S-S CYCLE Piston Kit Iron Head Oversized .020 Reviews 106-5543S

( Brand: S-s Cycle ), ( Manufacturer Part Number: 106-5543 ), ( Engine Type: 4-stroke ), ( Type: Piston Kit ), ( Machine Type: Street Motorcycle ), ( Manufacturer Warranty: 1 Year ), ( Performance Part: Yes )

Review S CYCLE Scycle 106-5543spiston Kit For Harley Iron Head Oversized .020 fits SPORTSTER 1972–1985

106-5543 Cycle piston kit for 1972-1985 Harley-Davidson Iron Head Sportster Oversized (0.20)

This 106-5543 piston kit from Cycle is specifically designed for the 1972-1985 Harley-Davidson Iron Head Sportster motorcycles. This kit includes oversized pistons with a bore size of 0.20 inches, providing an excellent upgrade for those seeking increased power and performance.

Each piston is meticulously crafted from high-quality forged aluminum material, ensuring durability and reliability. The piston domes are designed with a precise crown shape to optimize combustion and improve engine efficiency. The piston rings are made from heat-resistant, high-tensile material to ensure a proper seal and minimize compression loss.

The piston kit also includes piston pins, wrist pins, and piston pin bushings. The piston pins are made of chrome molybdenum steel, providing strength and resistance to fatigue. The wrist pins are made from heat-treated steel, ensuring a snug fit in the crankshaft and a secure connection to the piston. The piston pin bushings are made of brass, providing a smooth fit and easy installation.

This piston kit is an excellent choice for Harley-Davidson Sportster riders looking to enhance their engine's power and performance. The oversized pistons provide increased displacement and improved combustion, resulting in more torque and horsepower. The high-quality materials used in the construction of these pistons ensure a long-lasting and reliable upgrade for your motorcycle.

Installation of the piston kit is relatively straightforward, but it is recommended to have the cylinders honed before installation to ensure a proper fit and seal. The kit also includes detailed instructions to guide you through the installation process.

In conclusion, the 106-5543 piston kit from Cycle is an excellent upgrade for the 1972-1985 Harley-Davidson Iron Head Sportster motorcycles. With oversized pistons, high-quality materials, and easy installation, this kit is a must-have for those seeking increased power and performance from their Sportster.

Piston Kit Upgrade for 1972-1985 Harley-Davidson Iron Head Sportster (106-5543): A Comprehensive Analysis

The 106-5543 oversized piston kit from Cycle is a popular aftermarket upgrade for the Harley-Davidson Iron Head Sportster motorcycles produced between 1972 and 1985. This kit promises enhanced performance, durability, and power. In this analysis, we will discuss the pros and cons of investing in this piston kit and conclude with a recommendation.

1. Increased Performance: The oversized pistons result in increased compression ratio, providing a power boost for your Sportster.

2. Durability: The pistons are made from forged aluminum, which is more robust than cast iron pistons and can withstand higher temperatures and pressures.

3. Enhanced Engine Response: The larger pistons and increased compression ratio lead to improved engine response, making your Sportster more responsive and fun to ride.

4. Customization: Upgrading to oversized pistons is a popular modification among Harley-Davidson enthusiasts, giving your motorcycle a unique identity.

1. Cost: The piston kit is a significant investment, and the cost may be prohibitive for some riders.

2. Installation Complexity: Installing the piston kit requires extensive engine disassembly and reassembly, which can be time-consuming and complicated for those without mechanical expertise.

3. Potential Power Balance Issues: Installing oversized pistons in only one cylinder can lead to power balance issues between cylinders, causing uneven engine performance.

4. Potential Clearance Issues: The oversized pistons may require clearance modifications to ensure proper engine operation.

The 106-5543 piston kit from Cycle offers several advantages, including increased performance, durability, and customization for your 1972-1985 Harley-Davidson Iron Head Sportster. However, it also comes with some drawbacks, such as cost, installation complexity, potential power balance issues, and clearance concerns.

If you're an experienced motorcycle mechanic or enthusiast with a substantial budget and a desire for increased power and customization, the 106-5543 piston kit may be an excellent investment for your Harley-Davidson Iron Head Sportster. However, if you're a novice rider or unsure about your mechanical abilities, it might be best to consider other performance upgrades or consult a professional mechanic before opting for this piston kit.

Details:

Oversized piston kit new in box for 1972-85 Harley iron head Sportster .020 # 106-5543.

part #: 1065543 prices

• $38.11-$656.41

specifications pistondon:

• for models: Sportster
• for makes: Harley
• for years: 1972-1985
• brand: S-s Cycle
• mpn: 106-5543
• engine type: 4-stroke
• type: Piston Kit
• machine type: Street Motorcycle
• manufacturer warranty: 1 Year
• performance part: Yes

offer pistondon:

• sold: 0
• quantity: 1
• started: February 17, 2026
• best offers: True
• availability: In Stock
• options: Ship-to-home

payments pistondon:

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

returns pistondon:

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

shipping pistondon:

• cost: $0.00
• type: Calculated
• class: Standard
• service: USPS Ground Advantage
• carrier: USPS
• transit: 3-8 Days

seller pistondon:

• city: Saint Joseph, Minnesota
• # reviews: 683
• rating: 100.0%

general pistondon:

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

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