Heating and Cooling› Fans

Flex-a-lite

Adjustable Electric Fan Controller

$109.99

SKU: 400-121281

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Flex-A-Lite 121281 electric fan controller is a thread-in type that allows for adjustable fan activation. It features adjustable fan activation from approximately 160 to 220° F. The kit includes a 30-amp relay and an inline fuse, and is rated for fans with up to a 20-amp continuous draw.
Show original supplier description
The Flex-A-Lite 121281 is a compact, adjustable electric fan controller designed to provide precise control over your electric cooling fan. This thread-in controller allows you to set the fan activation temperature anywhere between 160° F and 220° F using a small, flat screwdriver, ensuring optimal engine cooling. This kit includes essential components for a straightforward installation, featuring a robust 30-amp relay and an inline fuse for protection. It is engineered to handle electric fans with a continuous draw of up to 20 amps, making it a versatile solution for many cooling system upgrades. The controller itself boasts potted electronics, offering enhanced water resistance and protection against vibrations, which contributes to its longevity and reliability. Customers have noted the ease of use and efficient operation of this Flex-A-Lite controller, praising its straightforward installation process and well-engineered wiring. Its main feature, the tapped and threaded water neck sensor, has demonstrated outstanding results in maintaining optimal engine operating temperatures, setting it apart from competing products. The dependable functionality and high customer satisfaction underscore its value for practicality and reliability in managing your vehicle's cooling system.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFlex-a-lite
Part Number400-121281
CategoryHeating and Cooling

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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