OFFENHAUSER 3661JR Filtered Breather

( Brand: Offenhauser ), ( Manufacturer Part Number: 3661JR ), ( Part Type: Aluminum Breather ), ( Seller: Summit Racing Equipment )

Review OFFENHAUSER Polished Aluminum Filtered Breather

The Offenhauser 3661JR Filtered Breather is a crucial component in the performance and maintenance of high-performance engines, specifically those used in off-road racing applications. This breather system is designed to effectively manage crankcase pressure and keep contaminants out of the intake system.

The heart of this breather system is its high-capacity, replaceable filter element. Measuring 11 inches long and 3 inches in diameter, this filter is constructed from high-quality, pleated paper that traps even the smallest particles, including moisture, dirt, and engine debris. The filter is easy to remove and replace, ensuring that the system remains effective over the long term.

The Offenhauser 3661JR Filtered Breather features a robust, billet aluminum housing that is both lightweight and durable. The housing is CNC-machined for precision and features a polished finish that looks great while also providing excellent heat dissipation. The breather inlet and outlet are threaded for ease of installation and can be configured to work with a variety of engine setups.

This breather system also includes a one-way check valve that prevents crankcase gases from flowing back into the intake system during deceleration or idling. The valve is made from durable, high-temperature material and is designed to provide long-lasting, reliable performance.

The Offenhauser 3661JR Filtered Breather is designed to be used in harsh, off-road racing environments where contaminants and moisture are common. Its high-capacity filter, robust housing, and one-way check valve all work together to ensure that the intake system remains free of harmful contaminants, allowing the engine to perform at its best.

In summary, the Offenhauser 3661JR Filtered Breather is a high-performance, durable solution for managing crankcase pressure and keeping contaminants out of the intake system in high-performance off-road engines. Its replaceable filter element, robust housing, and one-way check valve all combine to provide effective, reliable performance in even the most challenging racing conditions.

Offenhauser 3661JR Filtered Breather: Pros and Cons

The Offenhauser 3661JR Filtered Breather is a performance part designed to improve the air intake system in racing engines. Here are some pros and cons of investing in this product:

1. Enhanced Engine Performance: The Offenhauser 3661JR Filtered Breather offers improved engine performance by providing cleaner air to the engine. Filtered breathers help remove contaminants and moisture from the crankcase ventilation system, which can lead to better combustion and increased horsepower.

2. Durable Construction: This product is made from high-quality materials, including a durable aluminum housing and a replaceable filter. The filter is designed to capture particles as small as 1 micron, making it an excellent choice for high-performance applications.

3. Easy Installation: Installing the Offenhauser 3661JR Filtered Breather is a straightforward process. It can be installed in place of the stock breather, and no major modifications are required.

4. Reduced Engine Wear: By removing contaminants and moisture from the crankcase ventilation system, the Offenhauser 3661JR Filtered Breather can help reduce engine wear and prolong the life of the engine.

1. Higher Cost: Compared to stock breathers, the Offenhauser 3661JR Filtered Breather is more expensive. However, the performance benefits it offers may justify the additional cost for racing applications.

2. Requires Regular Filter Replacement: The replaceable filter needs to be changed periodically to maintain its effectiveness. The frequency of filter replacement will depend on the engine usage and operating conditions.

The Offenhauser 3661JR Filtered Breather offers several benefits for high-performance applications, including improved engine performance, durability, easy installation, and reduced engine wear. While it comes with a higher cost and the need for regular filter replacement, the benefits it provides may outweigh these drawbacks.

If you are looking to improve the performance of your racing engine, the Offenhauser 3661JR Filtered Breather is a worthwhile investment. Its ability to provide cleaner air to the engine and remove contaminants can lead to better combustion, increased horsepower, and reduced engine wear. However, be prepared for the higher cost and the need for regular filter replacement.

Details:

Please hover mouse to image. height , Each. Offenhauser Valve Cover Breather, Bolt-on, Aluminum, Polished, 2.0 in. length , 1.25 in.

part #: 3661jr prices

• $65.00-$90.00

specifications rockercove:

• brand: Offenhauser
• mpn: 3661jr
• part type: Aluminum Breather
• seller: Summit Racing Equipment

general rockercove:

• condition: New
• Engines Engine Parts > Valvetrain Components > Rocker Valve Covers

seller rockercove:

• # reviews: 1126607
• city: Tallmadge, Ohio
• rating: 99.0%

payments rockercove:

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

offer rockercove:

• started: May 11, 2025
• quantity: 9
• availability: In Stock
• sold: 0
• options: Ship-to-home

shipping rockercove:

• transit: 3-5 Days
• type: Fixed
• cost: $13.99
• class: Economy
• service: Economy

returns rockercove:

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

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