fits model: Twin. make: Harley. year: 1984-92.

( Brand: Harley Davidson ), ( Manufacturer Part Number: 16721-84A ), ( Part Type: Breather Cylinder Head ), ( Placement On Vehicle: Front ), ( Surface Finish: Chrome ), ( Part: Genuine Cylinder Heads )
The Davidson BigTwin Breather for Harley-Davidson Evolution cylinders is a crucial component for maintaining the optimal performance and longevity of your 1984-1992 Harley-Davidson Big Twin engines. This breather kit, specifically the part number 16721-84a, is designed to work seamlessly with the related 16720-84 twin heads.
This breather kit is meticulously crafted from high-quality materials, ensuring it can withstand the rigors of regular use. The breather itself is a vital component of your engine's breathing system, allowing excess crankcase pressure to escape, preventing oil vapor from entering the intake system. This helps maintain proper combustion and keeps your engine running smoothly.
The Davidson BigTwin Breather kit is a direct replacement for your original breather, making installation a straightforward process. It is designed to fit perfectly with the 16720-84 twin heads, ensuring a seamless integration into your engine. The kit includes all necessary hardware for installation, making it a complete and convenient solution.
In summary, the Davidson BigTwin Breather kit is a crucial upgrade for any 1984-1992 Harley-Davidson Big Twin engine. It is made from high-quality materials, ensures proper engine breathing, and is easy to install. Upgrading to this kit will not only improve your engine's performance but also contribute to its longevity.
Pros of buying 16721-84a Davidson Bigtwin Breather Harley Evolution Cylinder (1984-92 heads 16720-84 twin):1. Reliability: This part is known for its durability and reliability, which is a common trait of Harley-Davidson products.
2. Availability: Being a popular aftermarket part, you can easily find it in various online and offline stores.
3. Performance: The Davidson Bigtwin Breather improves the breathing of your engine, which can lead to better performance.
4. Cost-effectiveness: Compared to buying a new set of heads, this upgrade can be a more affordable option.
Cons of buying 16721-84a Davidson Bigtwin Breather Harley Evolution Cylinder (1984-92 heads 16720-84 twin):1. Installation Complexity: Installing this part may require some technical skills or a professional mechanic, depending on your level of expertise.
2. Compatibility: Ensure that this part is fully compatible with your specific Harley-Davidson model.
3. Quality Concerns: While reputable brands like Davidson offer reliable parts, there might be some lower-quality counterfeit options available on the market.
4. Potential for Damage: Handling the cylinders and heads during installation can potentially lead to damage if not done correctly.
Conclusion:The 16721-84a Davidson Bigtwin Breather Harley Evolution Cylinder (1984-92 heads 16720-84 twin) can be a great upgrade for your Harley-Davidson, offering improved performance and reliability at a more affordable price than new heads. However, be aware of the potential installation complexity and compatibility issues, and ensure you are dealing with a reputable seller to avoid low-quality counterfeit parts. If you have the required technical skills or can hire a professional mechanic, this upgrade can provide a significant improvement to your Harley-Davidson's performance.
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