HARLEY RK-3951 Air Intake Shaker 024844364623 Engineering

( Brand: Harley ), ( Manufacturer Part Number: RK-3951 ), ( Part Type: Intake Shaker ), ( UPC: 024844364623 )

Review HARLEY Engineering Metal Air Intake System Shaker Black #rk-3951 Davidson fits STREET

Introducing the RK-3951 Engineering Street Air Intake Shaker for Harley-Davidson motorcycles, a high-performance upgrade that adds both power and style to your bike. This intake system is designed to replace the stock airbox, providing a freer-flowing path for air to enter the engine, leading to increased horsepower and torque.

The intake shaker itself is a work of art, crafted from polished aluminum and featuring a chrome plated finish. It is not only visually striking but also functional, as it vibrates and pulses with every intake cycle, producing the iconic Harley-Davidson rumble that is sure to turn heads on the road.

Under the hood, the RK-3951 intake system includes a high-flow K&N air filter, which is designed to capture and hold more dirt and debris than the stock filter, ensuring cleaner air enters the engine for optimal combustion. The filter is also washable and reusable, making it a cost-effective and eco-friendly choice for Harley-Davidson riders.

The intake system also includes all necessary hardware for installation, including mounting brackets and rubber isolators to help reduce engine vibration. The installation process is relatively straightforward and can typically be completed in a few hours by a skilled mechanic or an experienced DIY enthusiast.

In terms of performance, the RK-3951 Engineering Street Air Intake Shaker is designed to provide a noticeable increase in power and torque, especially in the mid-range RPMs. This can lead to improved acceleration and throttle response, making your Harley-Davidson motorcycle feel more responsive and alive.

Overall, the RK-3951 Engineering Street Air Intake Shaker is an excellent choice for Harley-Davidson riders looking to add both power and style to their bike. With its sleek design, functional intake shaker, and high-flow K&N air filter, this intake system is sure to be a hit among Harley enthusiasts and performance junkies alike.

The RK-3951 Street Air Intake Shaker by Vance & Hines is a popular aftermarket upgrade for Harley-Davidson motorcycles. This intake system is designed to enhance the engine performance and provide a distinctive look with its chrome shaker cover. Let's examine the pros and cons of installing this intake system on your Harley-Davidson.

1. Improved Engine Performance: The RK-3951 intake system is designed to increase the airflow to the engine, thereby improving the combustion process. This results in better throttle response, increased horsepower, and improved torque.

2. Distinctive Look: The chrome shaker cover of this intake system adds a unique and eye-catching appearance to your Harley-Davidson. It's a head-turner and a conversation starter.

3. Better Filtration: The RK-3951 intake system comes with a high-performance air filter, which provides better filtration than the stock air filter. This results in cleaner air entering the engine and improved engine life.

4. Easy Installation: This intake system can be installed on most Harley-Davidson models without the need for any major modifications.

1. Increased Noise: The shaker cover of the intake system creates a distinctive sound as the engine sucks in air. This noise might not be to everyone's liking and could be a disadvantage for those who prefer a quieter ride.

2. Higher Cost: The RK-3951 Street Air Intake Shaker is a premium aftermarket upgrade, and it comes with a premium price tag. This might not be an affordable option for all Harley-Davidson owners.

3. Maintenance: The high-performance air filter used in this intake system requires more frequent maintenance than the stock air filter. This means more time and money spent on filter replacements.

The RK-3951 Street Air Intake Shaker by Vance & Hines is an excellent aftermarket upgrade for Harley-Davidson owners who are looking to enhance their engine performance and add a unique look to their motorcycle. However, it comes with some drawbacks, including increased noise and higher cost. Ultimately, the decision to install this intake system depends on your personal preferences, budget, and riding style.

If you're an avid Harley-Davidson rider who values performance, style, and the distinctive sound of a shaker intake, then the RK-3951 Street Air Intake Shaker is an excellent choice for you. However, if you prefer a quieter ride or are on a tight budget, then this intake system might not be the best option for you. We recommend carefully considering the pros and cons before making a decision.

Details:

Easy to install. These intake systems increase power by eliminating the stock air cleaner and replacing it with a complete High-Flow Air Intake System. Increase horsepower and torque. The intake system comes with a K N Air Filter for high air flow and long service intervals.

The K N High-Flow Air Filter is washable, reusable, pre-oiled and ready for installation. A durable mounting gasket is also included to help absorb vibration. K N Street Metal Air Intake System Shaker Black #RK-3951 Harley Davidson: K NS Series High-Flow Systems provide a good looking appearance, offer increased airflow and deliver more horsepower torque to your Harley-Davidson motorcycle. Backed by K NS warranty.

Designed for Harley-Davidson motorcycles. Simple designed custom covers give this air intake good looks while powering down the highway or at your local show. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an integrated, internal-run breather system.

part #: rk3951 prices

• $325.62-$409.99

specifications scoofilters:

• for models: Street
• for makes: Harley, Davidson
• brand: Harley
• mpn: Rk-3951
• part type: Intake Shaker
• upc: 024844364623

offer scoofilters:

• options: Ship-to-home
• sold: 0
• quantity: 2
• availability: In Stock
• started: November 9, 2025

shipping scoofilters:

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

seller scoofilters:

• # reviews: 650031
• rating: 99.6%
• city: Grand Rapids, Michigan

payments scoofilters:

• other
• wallet: Paypal
• credit card: Visa

returns scoofilters:

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

general scoofilters:

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

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