HARLEY-DAVIDSON SM-1866-D-CD Big Sucker Air Cleaner

( Brand: Harley-davidson ), ( Manufacturer Part Number: SM-1866-D-CD ), ( Type: Air Filter ), ( Mounting Style: Bolt-on ), ( Machine Type: Street Motorcycle ), ( Items Included: Cover, Gasket, Screws ), ( Item Diameter: 5 In ), ( Material: Chrome ), ( Vintage Part: No ), ( Features: Round, Tapered ), ( Gasket Material: Rubber ), ( Performance Part: Yes )

Review HARLEY DAVIDSON Big Sucker Air Cleaner

The Harley-Davidson SM-1866-D-CD Big Sucker Air Cleaner is an essential upgrade for Harley-Davidson Touring motorcycles, enhancing both performance and style. This high-performance air cleaner is designed to provide your bike with a more powerful and smoother engine operation.

The Big Sucker Air Cleaner boasts a large, 18.66-inch round filter element, which delivers a massive air intake capacity compared to the stock air cleaner. This increased airflow enables the engine to breathe more efficiently, leading to improved combustion and horsepower gains. The oversized filter element also ensures a longer service interval, allowing riders to enjoy more miles between filter replacements.

Constructed from high-quality materials, this air cleaner is built to withstand the rigors of regular riding. The durable, black powder-coated aluminum housing is not only attractive but also resilient against the elements. The oversized intake scoop, or "Big Sucker," is a distinctive design element that not only adds visual appeal but also functions to efficiently draw in more air.

The Big Sucker Air Cleaner is easy to install, making it an accessible performance upgrade for Harley-Davidson Touring motorcycle owners. The kit includes all necessary hardware, as well as clear, step-by-step instructions to ensure a hassle-free installation process.

In summary, the Harley-Davidson SM-1866-D-CD Big Sucker Air Cleaner is an essential upgrade for Harley-Davidson Touring motorcycles, delivering improved performance, increased power, and a distinctive appearance. With its large filter element, durable construction, and easy installation, this air cleaner is a must-have for riders seeking to enhance their riding experience.

The Harley-Davidson SM-1866-D-CD "Big Sucker" air cleaner is a popular aftermarket upgrade for Harley-Davidson motorcycles. This air cleaner offers several advantages and disadvantages, which are as follows:

1. Increased Air Flow: The Big Sucker air cleaner provides a larger filter surface area, which results in increased air flow to the engine. This can lead to improved engine performance, particularly in terms of power and torque.

2. Enhanced Filtration: The Big Sucker air cleaner uses a high-performance paper filter that offers superior filtration capabilities compared to the stock filter. This can help to protect the engine from dirt, debris, and other contaminants, which can improve engine longevity.

3. Aesthetic Appeal: The Big Sucker air cleaner is a visually striking upgrade that can add to the overall appearance of a Harley-Davidson motorcycle. Many riders appreciate the unique look of this aftermarket part.

1. Cost: The Harley-Davidson SM-1866-D-CD air cleaner is a premium aftermarket upgrade, and it comes with a premium price tag. This may be a significant investment for some riders.

2. Installation Complexity: Installing the Big Sucker air cleaner can be a complex process, particularly for those who are not experienced with motorcycle maintenance. This may require the assistance of a professional mechanic or the purchase of additional tools and parts.

3. Weight: The Big Sucker air cleaner is larger and heavier than the stock air cleaner, which can affect the overall handling of the motorcycle. This may be a concern for riders who prioritize agility and maneuverability.

The Harley-Davidson SM-1866-D-CD Big Sucker air cleaner offers several advantages, including increased air flow, enhanced filtration, and aesthetic appeal. However, it also comes with some disadvantages, such as cost, installation complexity, and weight. Ultimately, the decision to purchase this aftermarket upgrade depends on the individual rider's priorities and preferences.

If you value improved engine performance, superior filtration, and the unique look of the Big Sucker air cleaner, then this may be a worthwhile investment for you. However, if you are concerned about the cost, installation complexity, or weight, then you may want to consider other options or hold off on this upgrade.

If you are considering purchasing the Harley-Davidson SM-1866-D-CD Big Sucker air cleaner, I would recommend doing thorough research to ensure that it is the right upgrade for you. Consider your budget, installation capabilities, and riding style before making a decision. Additionally, be sure to purchase the air cleaner from a reputable dealer to ensure that you are getting a high-quality product.

Details:

This performance part features a tapered and round design, suitable for Harley-Davidson motorcycles. The gasket material is rubber, ensuring a secure fit for optimal air intake and fuel delivery. The Harley Davidson Big Sucker Air Cleaner SM-1866-D-CD is a bolt-on air filter designed for street motorcycles. Perfect for riders looking to enhance their motorcycles air intake system with a high-quality, genuine Harley-Davidson product.

Fits most 17 and up M8. Made of chrome with a 5-inch diameter, it includes cover, gasket, and screws for easy installation.

part #: sm1866d prices

• $200.00-$227.92

specifications scoofilters:

• for makes: Harley
• brand: Harley-davidson
• mpn: Sm-1866-d-cd
• type: Air Filter
• mounting style: Bolt-on
• machine type: Street Motorcycle
• items included: Cover, Gasket, Screws
• item diameter: 5 In
• material: Chrome
• vintage part: No
• features: Round, Tapered
• gasket material: Rubber
• performance part: Yes

shipping scoofilters:

• class: Standard
• type: Calculated
• carrier: USPS
• cost: $16.40
• transit: 4-8 Days
• service: USPS Ground Advantage

payments scoofilters:

• other
• credit card: Visa
• wallet: Apple-pay

seller scoofilters:

• city: Spring Lake, Michigan
• # reviews: 486
• rating: 100.0%

offer scoofilters:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• best offers: True
• quantity: 1
• started: May 25, 2026

returns scoofilters:

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

general scoofilters:

• condition: New
• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Air Filters

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