Best Engine Fan Spacers of 2025
 
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Engine fan spacers are essential components for any vehicle engine, as they provide an additional space between the engine and the fan. This extra distance allows for better air circulation and cooling, which can significantly enhance the performance and lifespan of your engine. Engine fan spacers are available in various sizes and materials, including aluminum and steel, and are designed to fit most types of engines. They are easy to install and can be a cost-effective way to improve the overall performance and efficiency of your vehicle's engine. Whether you're a professional mechanic or a DIY enthusiast, engine fan spacers are a must-have for any engine maintenance or upgrade project.
At a Glance: Our Top Picks
Top 10 Engine Fan Spacers
Flex-a-lite 14556 2" Fan Spacer Kit
The Flex-a-lite 14556 2" Fan Spacer Kit is specifically designed to provide proper spacing when attaching the fan to the engine. This kit includes 5/16" bolts and washers which eliminate the need for a fan clutch in the assembly. With a thickness of 2", the kit is perfect for engine fan spacers. The product comes with a one-year manufacturer warranty.
Derale 31510 Fan Spacer
Derale Fan Spacer is an aluminum spacer with an anodized clear finish. Its 1-inch length and 5/8-inch female pilot provide precise fitment. The included fine and coarse 5/16-inch thread hardware ensures easy installation. This spacer helps in optimizing engine cooling by adjusting fan position, enhancing performance. The durable construction guarantees long-term reliability for your vehicle's cooling system.
Derale 31515 Fan Spacer
Derale Fan Spacer is a high-quality aluminum spacer with an anodized clear finish. Its 1-1/2 inch length and 5/8 inch female pilot make it suitable for various engine fan applications. The included fine and coarse 5/16 inch thread hardware simplifies installation. This spacer helps in adjusting the position of the fan for optimal cooling. It ensures proper airflow, preventing overheating issues. The durable construction guarantees long-term reliability, providing peace of mind to users.
Derale 34550 Fan Spacer
Derale Fan Spacer is an aluminum spacer with a clear anodized finish. It has a 2-1/2 inch length and fits universal 5/8 inch and 3/4 inch female pilots. The package includes fine and course 5/16 inch thread hardware. The aluminum construction ensures durability, while the anodized finish adds a sleek look. The 2-1/2 inch length provides compatibility with various setups. The universal pilot sizes offer versatility, and the included hardware simplifies installation.
Derale 31520 Fan Spacer
The Derale Fan Spacer is designed with durable aluminum, ensuring a lightweight yet strong addition to your engine setup. Its anodized clear finish not only enhances its appearance but also protects against corrosion. With a length of 2 inches and a 5/8 inch female pilot, this spacer provides a perfect fit for your fan assembly. Additionally, it includes fine and coarse 5/16 inch threaded hardware for easy installation, making it convenient for you to upgrade or replace your fan setup without hassle.
Flex-a-lite 14548 Spacer Kit
This spacer kit is designed for vehicle-specific fit, and it comes in a compact package with a light weight. It is an electric fan product that falls under the category of engine fan spacers.
Allstar Performance Fan Spacer Kit
The Allstar Performance ALL30180 1/2" Fan Spacer Kit is a lightweight and compact accessory measuring 22.606 cm in length, 1.27 cm in height, and 13.97 cm in width. It weighs a mere 0.4lbs and falls under the Engine Fan Spacer category.
Derale 31550 Fan Spacer
Derale 31550 Fan Spacer is an engine fan spacer designed to provide additional clearance for better cooling performance. Its vendor part number is 31550, and it belongs to the engine fan spacer category.
Bryke Racing 3" Aluminum Fan Spacer
The Bryke Racing Fan Spacer is a high-quality engine accessory designed to optimize the performance of your vehicle's cooling system. Made from machined billet aluminum, this lightweight spacer is not only durable but also helps to improve airflow by creating additional space between the fan and the radiator. The included bushing ensures a secure fit, while the anodized black finish adds a sleek and stylish look to your engine bay. With its compatibility with a 1 3/4" circle flange, this fan spacer is suitable for a wide range of applications. Upgrade your cooling system with the Bryke Racing Fan Spacer and enjoy improved cooling efficiency and engine performance.
Speedway Motors Aluminum Fan Spacers
The Speedway Fan Spacers are designed to help you position your fan optimally for improved airflow. They fit fans and water pumps with a 5/8" pilot size, ensuring compatibility with various setups. The slotted bolt pattern allows for easy adjustments, accommodating center spacing from 1-3/4" to 2-5/32", making them suitable for almost all V8 engines. Additionally, these spacers come with all necessary hardware, simplifying the installation process and saving you time and effort in your engine setup.
Frequently Asked Questions (FAQs)
1. Do fan spacers work?
Yes, fan spacers can be effective in improving airflow and reducing noise in suction-type applications. By using fan spacers, fans can achieve higher flow rates and lower noise emissions.
2. What does the fan clutch mount to?
The fan clutch is typically mounted on the water pump or another belt-driven pulley in the engine bay. It is located between the radiator and water pump and is driven by a belt and pulley system, deriving power from the engine.
3. What are the negative effects of spacers?
Using spacers can have negative effects on your vehicle. It can increase the tire scrub radius, which can change the vehicle's handling and make slow-speed turning more difficult. Additionally, adding more components like wheel spacers can increase the potential for failure.
4. Will a missing fan shroud cause overheating?
Yes, a missing or damaged fan shroud can contribute to engine overheating and less efficient air conditioning system operation. The cooling fan shroud plays a crucial role in directing airflow through the radiator, and its absence can reduce cooling effectiveness.
5. Are Flex fans better?
Flex fans have an advantage in pulling more air through the radiator at idle compared to clutch-operated fans. This is particularly beneficial for engines with high compression ratios that are more challenging to cool.
6. Can you use a spacer on a clutch fan?
When replacing a clutch fan with a flex fan, a spacer is often required. The fan spacer helps properly locate the new fan in the shroud, taking up the area where the clutch used to be. Without the spacer, there is a risk of the fan hitting other engine parts.
7. Do you really need a clutch fan?
Clutch fans are suitable for stock or mildly modified engines and provide adequate cooling. It is important to use the fan and clutch designed for your specific application to ensure proper cooling, avoid excessive noise, reduce fuel economy, and prevent fan clutch failure.
During our engine fan spacer research, we found 24 engine fan spacer products and shortlisted 10 quality products. We collected and analyzed 5,030 customer reviews through our big data system to write the engine fan spacers list. We found that most customers choose engine fan spacers with an average price of $20.40.
The engine fan spacers are available for purchase. We have researched hundreds of brands and picked the top brands of engine fan spacers, including Flex-a-lite, Derale, Allstar Performance, Bryke Racing, Speedway Motors. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.
 
                            Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.
 
                             
                             
                             
                             
                             
                             
                             
                             
                            