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  3. MOROSO MN/P8QV

MOROSO MN-P8QV Air Cleaner Oil Separator Cams Qv MN/P8QV Air/oil

fits model: Twin. year: 1999.

P8qv Moroso Mn/p8qv Air/oil Separator For Twin Cams With Stock Air Cleaner 1999 Qv

( Brand: Moroso ), ( Manufacturer Part Number: MN/P8QV ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Fltri Road Glide ), ( Bundle Description: 1 Pc Genuine Moroso Air/oil Separ ), ( Type: Air/oil Separator For Twin Cams With Stock Air Cleaner ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review MOROSO Mn/p8qv Air/oil Separator Cams Stock Air Cleaner Qv fits TWIN 1999

The **Moroso MN/P8QV Air/Oil Separator** is a meticulously engineered component designed specifically for high-performance twin-cam engines, particularly those found in classic and modern vehicles equipped with Moroso s air cleaner systems, such as the 1999 QV models. This precision-crafted separator is a critical link in the intake system, ensuring that oil mist common in forced induction and high-revving applications is effectively filtered out before entering the engine s cylinders. Constructed from high-quality materials, the P8QV features a robust, durable design that combines functionality with reliability, making it an ideal choice for enthusiasts seeking to maintain optimal engine performance while minimizing wear and tear. Its compact yet efficient construction allows for seamless integration into Moroso s air cleaner assemblies, providing a clean, oil-free airflow that enhances combustion efficiency and prolongs the life of critical engine components. Whether installed in a stock or heavily modified engine, this separator plays a vital role in preserving the integrity of the intake system, reducing carbon buildup, and ensuring that the engine operates at peak performance under demanding conditions. Built to withstand the rigors of high-performance driving, the Moroso MN/P8QV is a testament to the brand s commitment to quality and precision engineering, offering a reliable solution for maintaining a clean and efficient intake for twin-cam applications.

The Moroso MN/P8QV Air/Oil Separator is designed to improve the performance and longevity of the air cleaner system on a 1999 QV (Twin Cam) motorcycle, particularly when using oil-injected air cleaners. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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**Pros:**

1. **Enhanced Air/Oil Separation:** The Moroso separator is engineered to more effectively filter oil from the air stream compared to the stock system. This reduces oil carryover into the engine, which can lead to fouling of the air filter and increased oil consumption. Better separation means cleaner air reaches the engine, improving combustion efficiency.

2. **Improved Engine Performance:** By ensuring a cleaner air supply, the Moroso separator can contribute to better throttle response, smoother power delivery, and reduced carbon buildup on intake valves and pistons. This is particularly beneficial for high-mileage engines or those running modified air cleaners.

3. **Compatibility and Fit:** Moroso products are known for their precise fitment on Harley-Davidson engines, including the Twin Cam. The P8QV is specifically designed for the QV air cleaner setup, ensuring a seamless integration without the need for extensive modifications.

4. **Durability and Quality:** Moroso components are generally built to high standards, using materials that resist corrosion and wear over time. The separator is designed to last the life of the air cleaner system with proper maintenance.

5. **Ease of Installation:** The separator is relatively straightforward to install, especially for those familiar with basic motorcycle maintenance. It typically requires removing the stock separator, cleaning the air cleaner housing, and installing the new unit in its place. No major modifications to the air cleaner or intake system are usually needed.

6. **Maintenance Convenience:** The Moroso separator often features a design that makes it easier to access and service. This can simplify routine maintenance tasks like cleaning or replacing the oil separator element.

7. **Reduced Oil Waste:** By minimizing oil loss through the air cleaner, the separator helps maintain optimal oil levels in the air cleaner system, reducing the frequency of oil top-ups.

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**Cons:**

1. **Cost:** The Moroso MN/P8QV separator is not a low-cost upgrade. Depending on availability and retailer pricing, it can be significantly more expensive than aftermarket alternatives or even the stock separator. For some riders, this may not justify the perceived benefits, especially if the stock system is functioning adequately.

2. **Maintenance Requirements:** While the separator improves oil separation, it does not eliminate the need for regular maintenance. The oil separator element may still require periodic cleaning or replacement, depending on riding conditions and oil type. Neglecting maintenance could negate the benefits of the upgrade.

3. **Potential for Overcomplication:** Some riders may find that the Moroso separator adds an extra component to the air cleaner system that could be seen as unnecessary if the stock system is already performing well. For those who prefer simplicity, this could be a drawback.

4. **Limited Performance Gains for Stock Engines:** If the motorcycle is running stock components and not heavily modified, the performance gains from the Moroso separator may be subtle. The benefits are more noticeable on high-mileage engines, modified bikes, or those running aggressive air cleaners (e.g., high-flow filters).

5. **Oil Type Sensitivity:** The effectiveness of the separator can depend on the type of oil used in the air cleaner. Some oils may separate better than others, and using the wrong oil could reduce the separator s efficiency. Riders must ensure they are using a compatible oil (e.g., Harley-Davidson-approved or synthetic air cleaner oil).

6. **Installation Complexity for Some:** While generally straightforward, the installation process may require careful attention to detail, especially when working with the air cleaner housing and intake system. For riders unfamiliar with these components, there is a risk of damaging seals or misalignment if not done correctly.

7. **Aftermarket Compatibility:** If the rider plans to further modify the air cleaner system (e.g., adding a high-flow filter or custom housing), the Moroso separator may not be fully compatible with all aftermarket parts. Some modifications could require additional adapters or adjustments.

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**Conclusion:**

The Moroso MN/P8QV Air/Oil Separator is a worthwhile upgrade for riders looking to improve the efficiency and longevity of their 1999 QV Twin Cam s air cleaner system. Its primary strengths lie in enhanced oil separation, potential performance benefits, and compatibility with Harley-Davidson s stock setup. These advantages are particularly valuable for high-mileage engines, modified bikes, or those experiencing issues with oil carryover in the air cleaner.

However, the upgrade is not without drawbacks. The cost, maintenance requirements, and potential overcomplication may deter some riders, especially those who are satisfied with their stock system or prefer minimal modifications. Additionally, the benefits are more pronounced under specific conditions, such as heavy use or aggressive air cleaner setups.

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**Recommendation:**

If you are experiencing problems with oil fouling the air filter, increased oil consumption in the air cleaner, or noticeable performance issues related to dirty air intake, the Moroso MN/P8QV separator is a solid choice. It is especially recommended for:

- Riders with high-mileage engines showing signs of carbon buildup or reduced performance.

- Those running aftermarket air cleaners (e.g., high-flow filters) that may require better oil separation.

- Enthusiasts who prioritize maintaining engine cleanliness and efficiency.

For riders with a stock setup that is functioning well and no visible issues with oil separation, the Moroso separator may not be necessary. In such cases, regular maintenance of the stock system (e.g., cleaning the separator element and using the correct oil) could be sufficient.

Ultimately, weigh the potential benefits against the cost and your specific riding conditions. If you decide to proceed, ensure you follow Moroso s installation guidelines and use the recommended oil to maximize the separator s effectiveness. For those unsure, consulting with a Harley-Davidson mechanic or experienced rider can provide further clarity.

Details:

Moroso Air/Oil Separator for Twin Cams with Stock Air Cleaner 1999 qv: Status: In.

part #: mnp8qv price

  • $373.16

specifications intakefuelmotorcycle:

  • for models: Twin
  • for years: 1999
  • brand: Moroso
  • mpn: Mn/p8qv
  • compatible make: Harley Davidson
  • compatible model: Fltri Road Glide
  • bundle description: 1 Pc Genuine Moroso Air/oil Separ
  • type: Air/oil Separator For Twin Cams With Stock Air Cleaner
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement

shipping intakefuelmotorcycle:

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offer intakefuelmotorcycle:

  • availability: In Stock
  • started: February 6, 2026
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  • condition: New
  • Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery

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for models: twin, for years: 1999, compatible make: harley davidson, compatible model: fltri road glide, bundle description: 1 pc genuine moroso air/oil separ, type: air/oil separator for twin cams with stock air cleaner, core charge: free no core charge, fitment type: direct replacement,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery, sku: 22285378713324633,
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