V-TWIN MANUFACTURING 40-0447 Crankcase Breather

( Brand: V-twin Manufacturing ), ( Manufacturer Part Number: 40-0447 ), ( Country Of Origin: Taiwan ), ( Item Height: 2.25 ), ( Item Length: 3.50 ), ( Item Weight: 0.05 ), ( Type: Air Filter Breather )

Review V TWIN MANUFACTURING Crankcase Breather

The V-Twin 40-0447 Crankcase Breather is an essential component for maintaining the optimal performance and longevity of your motorcycle engine. Designed specifically for V-twin engines, this breather assembly effectively vents excess crankcase pressure and prevents oil from entering the intake system.

This crankcase breather features a high-quality, reusable foam filter that efficiently traps any contaminants while allowing the free flow of gases. The filter is securely held in place by a robust clamp design, ensuring a reliable and leak-free seal. The clamp is adjustable, allowing for a custom fit on various motorcycle makes and models.

The breather body is crafted from durable, heat-resistant materials that can withstand the extreme temperatures and pressures found within the engine compartment. Its compact design makes for easy installation, while its robust construction ensures long-lasting reliability.

The V-Twin 40-0447 Crankcase Breather comes complete with all necessary hardware for installation, including bolts and washers. It is important to note that this breather is designed for off-road use only and should not be used on vehicles operated on public roads.

By properly venting crankcase pressure and preventing oil contamination, the V-Twin 40-0447 Crankcase Breather ensures a more efficient combustion process, better fuel economy, and reduced engine wear. It is an essential upgrade for any V-twin motorcycle enthusiast looking to maximize their engine's performance and longevity.

Buying a V-Twin 40-0447 crankcase breather kit can be a valuable investment for motorcycle owners, especially those with air-cooled V-twin engines. Here are some pros and cons to consider before making a purchase:

1. Reduces Engine Oil Consumption: A crankcase breather kit helps to prevent the loss of engine oil by venting gases produced during engine operation. This can lead to a reduction in oil consumption and the need for less frequent oil changes.

2. Improves Engine Performance: By reducing crankcase pressure, a crankcase breather kit can improve engine performance and power output. This can result in smoother idling, better acceleration, and overall improved riding experience.

3. Prevents Engine Damage: Crankcase pressure can cause harm to engine components, such as piston rings and cylinder walls. A crankcase breather kit helps to prevent this damage by venting gases before they can cause harm.

4. Quieter Operation: A crankcase breather kit can help to reduce engine noise by venting gases more efficiently than the stock breather system. This can lead to a quieter and more enjoyable riding experience.

1. Cost: A crankcase breather kit can be a significant investment, especially for older motorcycles where the cost of the kit may outweigh the potential benefits.

2. Installation Complexity: Installing a crankcase breather kit can be a complex process, especially for those without mechanical experience. It may require the use of specialized tools and a good understanding of engine systems.

3. Maintenance: A crankcase breather kit requires regular maintenance to ensure proper function. This can include cleaning or replacing filters and checking for leaks.

A V-Twin 40-0447 crankcase breather kit can offer numerous benefits for motorcycle owners with air-cooled V-twin engines. These benefits include reduced engine oil consumption, improved engine performance, and the prevention of engine damage. However, the cost and installation complexity may be a deterrent for some. Ultimately, the decision to purchase a crankcase breather kit depends on the individual's budget, mechanical abilities, and riding goals.

If you are a motorcycle owner with an air-cooled V-twin engine and a desire for improved engine performance and reduced oil consumption, a crankcase breather kit may be a worthwhile investment. It is recommended to consider the cost and installation complexity before making a purchase and to consult with a professional mechanic if necessary. For those with limited budgets or mechanical abilities, it may be worth considering alternative solutions, such as regular oil changes and engine maintenance.

Details:

Overview of V-Twin Manufacturing Crankcase Breather: Chrome crankcase breather accepts 1/8 National Pipe Thread. V-Twin Manufacturing Crankcase Breather: Part #: 3002530. Type Air Filter - Breather. Weight0.05 lbs.

Fits: Custom application. Manufacturer Part #: 40-0447.

part #: 400447 prices

• $20.07-$35.99

specifications scoofilters:

• brand: V-twin Manufacturing
• mpn: 40-0447
• country of origin: Taiwan
• item height: 2.25
• item length: 3.50
• item weight: 0.05
• type: Air Filter Breather

returns scoofilters:

• policy: Returns Accepted
• time: 60 Days
• paid by: Seller

offer scoofilters:

• started: March 1, 2026
• sold: 0
• availability: In Stock
• quantity: 1
• options: Ship-to-home

payments scoofilters:

• other
• wallet: Paypal
• credit card: Discover

seller scoofilters:

• city: Rush City, Minnesota
• # reviews: 108700
• rating: 99.9%

general scoofilters:

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

shipping scoofilters:

• cost: $7.99
• transit: 3-5 Days
• service: Standard
• type: Fixed
• class: Standard

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