MOROSO MN-4M2H Air Cleaner Oil Separator Cams Ci MN/4M2H Air/oil VO2

( Brand: Moroso ), ( Manufacturer Part Number: MN/4M2H ), ( Color: Black ), ( Compatible Year: 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Flhtcu Electra Glide Ultra Classic ), ( 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/4m2h Air/oil Separator Cams Vvo2 Air Cleaner Ci fits TWIN

The **Moroso MN/4M2H Air/Oil Separator** is a meticulously engineered aftermarket component designed specifically for high-performance applications, particularly tailored to twin-cam engines equipped with the **CI (Cleaner Intake) air cleaner** system. This precision-crafted separator is a critical upgrade for enthusiasts seeking to optimize airflow while maintaining the integrity of their engine s lubrication system. Built from high-grade materials, the MN/4M2H features a robust, durable construction that ensures long-lasting performance under demanding conditions, whether on the track or during spirited daily driving. Its compact yet efficient design allows for seamless integration into the intake manifold, providing a direct and unrestricted path for air while effectively filtering out oil vapors and contaminants that could otherwise infiltrate the intake system. The separator s internal baffling system is strategically engineered to maximize separation efficiency, ensuring that only clean, oil-free air reaches the throttle body and intake manifold, thereby protecting sensitive components like the throttle body, mass airflow sensor, and intake runners from premature wear or failure. This makes it an ideal choice for engines running with oil-wetted intake systems, such as those utilizing Moroso s CI air cleaners or similar setups. The MN/4M2H is particularly well-suited for applications on **Ford Twin-Cam engines**, including those found in classic Mustangs, Shelby GT350s, and other high-revving performance models, where maintaining a clean intake is paramount for peak performance and reliability. Whether paired with a Moroso CI air cleaner or another high-flow intake system, this separator ensures that the engine breathes cleanly while keeping oil where it belongs within the crankcase. Its straightforward installation and compatibility with a wide range of intake configurations make it a versatile and practical choice for both stock and modified engines, offering a balance of performance and protection that enthusiasts can trust.

The Moroso MN/4M2H Air/Oil Separator is a popular aftermarket upgrade for twin-cam engines, particularly those using the CI (Cylinder Head) air cleaner setup. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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The MN/4M2H is designed to provide a more efficient air/oil separation system compared to the stock Moroso air cleaner. It features a larger surface area for oil collection and a more effective baffling system, which can reduce oil carryover into the intake. This leads to cleaner air entering the engine, potentially improving throttle response, power delivery, and overall engine efficiency.

The separator includes a larger oil reservoir and a more robust filtration system, which helps keep oil from fouling the air filter and intake system. This can extend the life of the air filter and reduce the risk of oil-related issues such as clogged intake ports or carbon buildup.

The MN/4M2H is specifically designed for twin-cam engines with the CI air cleaner setup, ensuring a proper fit without the need for extensive modifications. It is widely compatible with common twin-cam applications, including Ford, GM, and other manufacturers' engines.

Moroso products are generally known for their durability and reliability. The MN/4M2H is constructed with materials that can withstand the demands of high-performance applications, including heat and vibration.

The separator is designed for straightforward installation, often requiring minimal tools and time. It typically replaces the stock separator with little to no modifications needed to the existing setup.

Compared to some high-end aftermarket air/oil separators, the MN/4M2H offers a balance between performance gains and affordability. It is often priced lower than premium alternatives while still delivering noticeable improvements.

By minimizing oil carryover, the separator can reduce the frequency of air filter replacements and intake system cleaning, saving time and money in the long run.

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If the engine is running stock or with minimal modifications, the improvements offered by the MN/4M2H may be subtle. The separator is more beneficial for engines with higher airflow demands, such as those running turbochargers, superchargers, or significant tuning.

Like any air/oil separator, the MN/4M2H relies on seals and gaskets to prevent oil leaks. Over time, these components can degrade, leading to oil leaks that may require maintenance or replacement.

While the MN/4M2H is designed for common twin-cam applications, engines with highly modified or non-standard intake setups (e.g., custom manifolds, long-tube headers, or aggressive tuning) may require additional modifications or adapters to ensure proper fitment.

The separator does not address the root cause of oil consumption; it merely helps manage the oil that does enter the intake system. If the engine has high oil consumption issues (e.g., due to worn piston rings or valve seals), the separator will not solve those problems.

The MN/4M2H is a functional upgrade rather than an aesthetic one. Its design is utilitarian, and it may not appeal to those seeking a more polished or visually appealing air cleaner setup.

While the separator is designed to minimize backpressure, some users report slight increases in intake restriction compared to high-flow aftermarket air cleaners. This is generally negligible for most applications but could be a consideration for highly tuned engines.

Although the installation is generally straightforward, engines with tight clearance or unique mounting configurations may require careful handling to avoid damaging surrounding components.

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The Moroso MN/4M2H Air/Oil Separator is a solid upgrade for twin-cam engines with the CI air cleaner setup, particularly for those seeking to improve airflow efficiency, reduce oil carryover, and enhance engine performance. Its pros such as improved airflow, better oil management, and ease of installation outweigh its cons for most applications, especially for engines with moderate to high airflow demands. However, it is not a magic solution for engines with severe oil consumption issues or highly modified intakes. The separator is best suited for engines that are either stock or lightly modified, where it can provide noticeable but not dramatic gains.

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If you are running a twin-cam engine with the CI air cleaner and experiencing issues with oil fouling the air filter or intake system, or if you are looking to improve throttle response and airflow efficiency, the Moroso MN/4M2H is a worthwhile upgrade. It is particularly beneficial for engines with forced induction or those that have been tuned to increase airflow.

For stock or lightly modified engines, the separator will likely provide a clear improvement in reliability and performance without requiring significant additional modifications. However, if your engine has high oil consumption or is part of a highly modified setup, consider addressing the root causes of oil issues (e.g., piston rings, valve seals) and ensure compatibility with any custom components before installing the separator.

In summary, the MN/4M2H is a practical and effective choice for many twin-cam applications, offering a balance of performance, durability, and ease of use. If your goals align with its intended benefits, it is highly recommended.

Details:

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

part #: mn4m2h price

• $373.16

specifications intakefuelmotorcycle:

• for models: Twin
• brand: Moroso
• mpn: Mn/4m2h
• color: Black
• compatible year: 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007
• compatible make: Harley Davidson
• compatible model: Flhtcu Electra Glide Ultra Classic
• 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

payments intakefuelmotorcycle:

• wallet: Google-pay
• credit card: Mastercard
• other

offer intakefuelmotorcycle:

• started: April 17, 2026
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0

general intakefuelmotorcycle:

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

returns intakefuelmotorcycle:

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

seller intakefuelmotorcycle:

• rating: 99.2%
• city: Multiple warehouses
• # reviews: 21172

shipping intakefuelmotorcycle:

• type: Fixed
• transit: 3-5 Days
• cost: $0.00
• service: Standard
• class: Standard

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