What is the Flex-a-lite 851 Screw-On Spacer Adapter used for?

The Flex-a-lite 851 Screw-On Spacer Adapter is designed to adapt fans or accessories to various radiator or engine assemblies, particularly those that require a reverse rotation. This adapter allows for enhanced cooling performance in high-demand driving conditions. By installing this spacer, enthusiasts can optimize their engine’s cooling system, ensuring that it operates efficiently during both daily commutes and rigorous off-road adventures.

How does the reverse rotation feature of this adapter benefit my vehicle?

The reverse rotation feature of the Flex-a-lite 851 adapts fans specifically for engines that rotate in reverse. This provides proper airflow across the radiator, enhancing cooling efficiency. Many performance vehicles and custom builds utilize this feature, as it ensures the fan pulls air through the radiator effectively, preventing overheating during demanding tasks. It's essential for vehicles designed with unique engine configurations.

What materials are used in the construction of the Flex-a-lite 851 adapter?

The Flex-a-lite 851 Screw-On Spacer Adapter is crafted from high-quality materials designed to withstand the rigors of high temperatures and vibrations within an engine compartment. Its durable construction ensures longevity and performance reliability. This adapter is suited for customers looking for a robust solution to enhance their vehicle’s cooling capacity in performance or general applications.

Can the Flex-a-lite 851 adapter be used with other brands of fans?

Yes, the Flex-a-lite 851 adapter is designed to be versatile and can be utilized with a range of fan brands, given that they meet the dimensional requirements. This adaptability allows for compatibility with many aftermarket fan options, making it an excellent choice for automotive enthusiasts looking to upgrade or modify their cooling systems without extensive modifications.

What is the installation process for the Flex-a-lite 851 Screw-On Spacer Adapter?

Installing the Flex-a-lite 851 Screw-On Spacer Adapter typically involves removing the existing fan and mounting this spacer in its place. Ensure you have the correct tools for a secure fit. The process generally takes under an hour and significantly improves the efficiency of your cooling system if your vehicle's fan requires modification for reverse rotation. Precise installation is vital to ensure optimal performance.

Is the Flex-a-lite 851 adapter suitable for high-performance vehicles?

Absolutely! The Flex-a-lite 851 Screw-On Spacer Adapter is tailored for high-performance applications, providing enhanced cooling capabilities essential for maintaining engine health under extreme conditions. Car enthusiasts and racers can benefit significantly from its capabilities, ensuring their vehicles perform optimally during high-pressure situations, such as racing or towing.

What makes the Flex-a-lite 851 Screw-On Spacer Adapter unique?

The Flex-a-lite 851 is unique due to its specific design for reverse rotation applications, allowing it to cater to a niche market of vehicles that require such adaptations. Its construction is built to provide optimal airflow, durability, and performance in demanding environments. This specialization makes it invaluable for customers looking to tailor their vehicle cooling system to their unique needs.

Can I use the Flex-a-lite 851 adapter in trucks or SUVs?

Yes, the Flex-a-lite 851 adapter is suitable for trucks and SUVs, especially those equipped with engines that require reverse rotation. Many truck owners choose this adapter to ensure their heavy-duty vehicles maintain optimal cooling, especially when towing or under heavy loads. This product helps avoid overheating risks, thus enhancing the reliability of your vehicle.

Does the Flex-a-lite 851 adapter come with installation instructions?

The Flex-a-lite 851 Screw-On Spacer Adapter typically includes basic installation instructions. These guidelines help users identify the proper installation process to ensure that they achieve the best performance from their cooling systems. Additional resources, such as online videos or forums, can also provide helpful tips and troubleshooting advice for DIY installation.

Where can I buy the Flex-a-lite 851 1 1/2" Screw-On Spacer Adapter (reverse rotation) in Wallis and Futuna Islands?

You can buy the Flex-a-lite 851 1 1/2" Screw-On Spacer Adapter (reverse rotation) on Ubuy. Ubuy offers a wide variety of automotive accessories, making it convenient for customers in Wallis and Futuna Islands to find this specific adapter and have it delivered directly to their address.

How to Shop Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and Online From Ubuy?

It’s easy to shop Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.

Is Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and Available to Shop Online in Wallis and Futuna Islands?

Yes, at Ubuy Wallis and Futuna Islands this product is available for you to shop at a reasonable price. The Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and is not available locally but you can trust us with our express shipping services.

How Long Does It Take to Get Product After Placing the Order?

The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

Flex-a-lite

Replace your clutch fan with confidence using the Flex-A-Lite Thread-On Fan Spacer and Adapter, designed for quality and reliability.

Flex-a-lite

Item #: 3976495

Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and Adapter, Reverse Rotation Fan Spacer (851/113291)

89% of respondents would recommend this to a friend

Item #: 3976495

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Replace your clutch fan with confidence using the Flex-A-Lite Thread-On Fan Spacer and Adapter, designed for quality and reliability.

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Note: Step 1 Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Versatile Compatibility

Designed to fit various fan models, this adapter ensures seamless installation and reverse rotation capability, providing flexibility for different applications.

Durable Construction

Manufactured from high-quality materials, this thread-on spacer offers exceptional durability, withstanding varying temperatures and conditions for reliable long-term performance.

Enhanced Airflow

Optimized for maximum airflow efficiency, this fan spacer improves cooling performance, making it an ideal choice for enhancing engine or equipment cooling systems.

Product Details

Who Should Buy?

Automotive Mechanics
Ideal for mechanics needing to install reverse rotation fans in various vehicle models efficiently and effectively.
DIY Enthusiasts
Perfect for home mechanics looking to customize or upgrade fan setups in their cars or DIY projects.
Performance Car Owners
Beneficial for performance enthusiasts seeking enhanced cooling solutions with reverse rotation capabilities in their vehicles.

Standard Vehicles
May not suit standard vehicles without reverse rotation fans, limiting functionality for typical automotive applications.

Product Description

Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and Adapter, Reverse Rotation Fan Spacer (851/113291)

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Customer Questions & Answers

Question: How to Shop Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and Online From Ubuy?

Answer: It’s easy to shop Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.
Question: Is Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and Available to Shop Online in Wallis and Futuna Islands?

Answer: Yes, at Ubuy Wallis and Futuna Islands this product is available for you to shop at a reasonable price. The Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and is not available locally but you can trust us with our express shipping services.
Question: How Long Does It Take to Get Product After Placing the Order?

Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

Flex-a-lite Spacers Editorial Review

The 1-12 Inch Thread-On Fan Spacer and Adapter has garnered a range of feedback from customers, showcasing its efficacy in resolving issues related to factory electric fans and offering a switch to more reliable, belt-driven options. Many users, particularly those with trucks and SUVs like the Dodge Ram and Jeep Grand Cherokee, report successful installations and dramatic improvements in cooling performance. These adapters have been praised for their easy installation and compatibility with various fan types when paired with the appropriate spacers. Several reviewers highlighted the transition from electric fans, which are often criticized for being noisy and unreliable, to this durable fan spacer and adapter system. Users appreciate the noticeable differences in temperature regulation and the boost in horsepower due to the elimination of bulky clutches. Although most feedback is positive regarding the functionality, a few customers faced installation challenges due to misleading information in the product details, indicating that attention is needed in the product description to clarify features and instructions. Overall, those who have embraced this adapter highlight it as a robust solution for improving vehicle cooling systems, with specific praise for its performance across different weather conditions and when towing. However, there are notes of concern regarding compatibility, suggesting potential users must verify installation specifics to avoid mismatches. **

Customer Reviews & Ratings

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Pros

Effective in replacing unreliable electric fan systems.
Notable improvement in engine temperature regulation.
Light-weight compared to stock fans, freeing up horsepower.
Easy installation for many users.
Compatible with a range of vehicles and fan types when combined with appropriate spacers.

Cons

Some misleading installation and compatibility information in product descriptions.

Platform Trust & Buyer Confidence

4.2/5 9704 reviews

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Jasmin

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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot

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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot

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Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot

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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot

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Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

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Features & Benefits

Right-hand threaded fan adapter for clutch fan replacement.
Thread pitch measures 30mm by 1.5 inches.
Easily screws onto the water pump as a fan clutch and hub replacement.
Bolts directly to the cooling fan for seamless installation.
Can be combined with an additional Flex-A-Lite spacer for optimal fan placement.
Includes a one-year manufacturer warranty for peace of mind.

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Flex-A-Lite 1-1/2 Inch Thread-On Fan Spacer and Adapter, Reverse Rotation Fan Spacer (851/113291)

XPF 13707

Fast Shipping

Free Return*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

What Stands Out

Product Details

Who Should Buy?

Product Description

Customer Questions & Answers

Flex-a-lite Spacers Editorial Review

Customer Reviews & Ratings

Review this product

Pros

Cons

Platform Trust & Buyer Confidence

WHY SHOP WITH US

Product Price History

Important information

XPF 13707

Features & Benefits

Ubuy Assurance

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