1. Motorcycle Intake & Fuel Systems Deals
  2. sku: 23479300815067632
  3. MOROSO MN/2N9R

MOROSO MN-2N9R Air Cleaner Oil Separator Cams MN/2N9R Air/oil VO2

fits model: Twin.

2n9r Moroso Mn/2n9r Air/oil Separator For Twin Cams With V&h Vo2 Air Cleaner Pu

( Brand: Moroso ), ( Manufacturer Part Number: MN/2N9R ), ( Color: Black ), ( Compatible Year: 2006 2005 2004 2003 2002 2001 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Flstfi Fat Boy ), ( Bundle Description: 1 Pc Genuine Moroso Air/oil Separ ), ( Type: Air/oil Separator For Twin Cams With V H Vo2 Air Cleaner ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review MOROSO Mn/2n9r Air/oil Separator Cams Vvo2 Air Cleaner Pu fits TWIN

The **Moroso MN/2N9R Air/Oil Separator** is a meticulously engineered, high-performance component designed specifically for twin-cam engines equipped with the Pu-style air cleaner, ensuring optimal airflow while effectively separating oil from the intake charge. Crafted from durable, precision-machined aluminum, this separator features a robust, anodized finish that resists corrosion and wear, guaranteeing long-lasting reliability under the demanding conditions of high-performance applications. Its compact yet efficient design integrates seamlessly with the Pu-style air cleaner housing, providing a tight, leak-free seal that maintains peak vacuum levels and minimizes turbulence critical for maximizing engine efficiency and power output.

The separator s internal labyrinthine baffle system is engineered to maximize oil separation, ensuring that only clean, oil-free air enters the intake manifold, which is essential for preserving the longevity of the engine s internals, including the carburetor or fuel injection system. The unit s smooth, aerodynamic contours reduce airflow restriction while maintaining the necessary separation efficiency, making it an ideal choice for both stock and modified twin-cam applications, including those running with aftermarket performance parts. Whether installed on a classic Ford twin-cam engine or a high-revving, high-horsepower setup, the MN/2N9R delivers consistent performance, helping to prevent oil fouling of the intake valves and carburetor components.

For enthusiasts seeking a balance between performance and practicality, the Moroso MN/2N9R stands out as a superior alternative to stock or aftermarket options, offering a direct-fit solution that doesn t compromise on quality. Its straightforward installation process requiring only basic tools makes it accessible for both DIY mechanics and professional tuners alike. With its reputation for durability and precision, this air/oil separator is a trusted upgrade for anyone looking to enhance their twin-cam engine s reliability and performance while maintaining the integrity of the intake system.

### Pros and Cons of buying a Moroso MN/2N9R Air/Oil Separator for Twin Cam VO2 Air Cleaner

#### **Pros**

1. **Compatibility and Fit**: The Moroso MN/2N9R is specifically designed to replace the stock air cleaner on the Suzuki GSX-R1100 and other Twin Cam engines with a VO2 air cleaner setup. It integrates seamlessly with the Moroso air cleaner housing (MN/2N or similar), ensuring a proper fit without modifications.

2. **Improved Airflow**: The air/oil separator is engineered to efficiently filter oil from the air before it enters the engine, reducing oil carryover. This helps maintain cleaner air intake and can prolong the life of the engine components, such as the cylinder walls and pistons.

3. **Durability and Quality**: Moroso is a well-regarded brand in the motorcycle aftermarket, known for producing high-quality, durable parts. The MN/2N9R is built to withstand the demands of high-performance riding and frequent use.

4. **Easy Installation**: The separator is designed for straightforward installation, requiring minimal tools and time. It typically involves removing the stock air cleaner, installing the new separator, and connecting it to the air cleaner housing and intake system.

5. **Performance Benefits**: By reducing oil carryover, the separator can help improve engine efficiency and performance. Less oil in the air intake means less fouling of the intake system, which can contribute to better throttle response and overall engine health.

6. **Maintenance Convenience**: The design often allows for easy access to the oil reservoir for refills or changes, making maintenance simpler compared to some alternative setups.

7. **Compatibility with Other Moroso Parts**: If you are using other Moroso components (such as the MN/2N air cleaner housing or intake systems), this separator will integrate smoothly, creating a cohesive and optimized setup.

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#### **Cons**

1. **Cost**: The Moroso MN/2N9R is not a cheap part. Depending on the market and retailer, it can be significantly more expensive than generic or aftermarket alternatives. For riders on a tight budget, this may be a deterrent.

2. **Oil Management**: While the separator is effective, it requires regular maintenance to ensure it functions properly. The oil level must be checked and topped up periodically, and the separator may need occasional cleaning or replacement of the filter element, adding to the long-term cost and effort.

3. **Potential for Oil Leaks**: If the separator is not installed correctly or if the seals degrade over time, oil leaks can occur. This can lead to oil dripping onto the engine or exhaust system, creating a mess and potentially causing damage if left unchecked.

4. **Limited Customization**: The MN/2N9R is a standard part and may not offer customization options for riders looking for specific airflow characteristics or performance tweaks. If you want a more aggressive or unique setup, you may need to explore other aftermarket options.

5. **Dependence on Moroso Ecosystem**: While Moroso parts are reliable, they are part of a specific ecosystem. If you are not already using other Moroso components, you may find yourself investing in additional parts to fully optimize your setup, which can add to the overall cost.

6. **Weight**: The separator adds some weight to the air intake system. While this is typically negligible, riders focused on reducing weight elsewhere in the bike may find this a minor drawback.

7. **Potential for Clogging**: Over time, the separator s filter element or internal components can become clogged with dirt or debris, especially if the bike is ridden in dusty or dirty conditions. This can reduce airflow efficiency and may require more frequent cleaning or replacement.

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### **Conclusion**

The Moroso MN/2N9R air/oil separator is a high-quality, reliable, and well-engineered part that offers significant benefits for riders using a VO2 air cleaner setup on a Twin Cam engine. Its primary advantages lie in improved airflow, reduced oil carryover, and seamless integration with Moroso s air cleaner systems. The durability and ease of installation make it a practical choice for those who prioritize performance and longevity.

However, the cost is a notable drawback, and the separator requires regular maintenance to ensure optimal performance. Riders must be prepared to manage oil levels and potential leaks, which can be inconvenient if not properly addressed. Additionally, the separator is not customizable, and its weight may be a minor consideration for some.

For riders who are already invested in Moroso s aftermarket parts and want a reliable, high-performance air/oil separation solution, the MN/2N9R is an excellent choice. It is particularly well-suited for those who prioritize engine health, reduced oil fouling, and a hassle-free installation process.

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### **Recommendation**

If you are running a VO2 air cleaner setup on a Twin Cam engine and are already using or plan to use Moroso s air cleaner housing (such as the MN/2N), the **Moroso MN/2N9R air/oil separator is highly recommended**. It provides a robust, efficient, and easy-to-install solution that will enhance your engine s performance and longevity.

For riders on a tighter budget or those who prefer a more minimalist approach, alternatives such as generic air/oil separators or DIY solutions (e.g., using a separate oil reservoir with a filter) might be worth considering. However, these alternatives may lack the durability and integration benefits of the Moroso part.

Ultimately, if you value reliability, compatibility with other Moroso components, and a reduction in oil carryover, the MN/2N9R is a strong and worthwhile investment. Just be prepared for the associated maintenance and cost.

Details:

Moroso Air/Oil Separator for Twin Cams with VVO2 Air Cleaner pu: Status: In Stock.

part #: mn2n9r price

  • $373.16

specifications intakefuelmotorcycle:

  • for models: Twin
  • brand: Moroso
  • mpn: Mn/2n9r
  • color: Black
  • compatible year: 2006 2005 2004 2003 2002 2001
  • compatible make: Harley Davidson
  • compatible model: Flstfi Fat Boy
  • bundle description: 1 Pc Genuine Moroso Air/oil Separ
  • type: Air/oil Separator For Twin Cams With V H Vo2 Air Cleaner
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement

general intakefuelmotorcycle:

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

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  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1
  • started: April 17, 2026
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for models: twin, compatible year: 2006 2005 2004 2003 2002 2001, compatible make: harley davidson, compatible model: flstfi fat boy, bundle description: 1 pc genuine moroso air/oil separ, type: air/oil separator for twin cams with v h vo2 air cleaner, core charge: free no core charge, fitment type: direct replacement,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery, color: black, sku: 23479300815067632,
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