K&N

40-Micron In-Line Fluid Filter

$125.99

SKU: 81-1009

In Stock
In Stock
Ships by Aug 29
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The K&N 81-1009 is a high-performance in-line replacement fluid filter designed to enhance your vehicle's fuel filtration. It works by removing contaminants with its 40-micron stainless mesh media, ensuring cleaner fuel for more efficient combustion and an improved performance. This filter is engineered with a special low-restriction media that can handle high fuel flow rates (GPH), making it suitable for demanding applications. Its construction utilizes durable stainless mesh, ensuring longevity and reliability. The filter has an outside diameter of 1.688 inches (43mm) and a length of 5.625 inches (143mm). The K&N 81-1009 is ideal for racing applications and can be used with a variety of oils and fuels, including methanol.

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

BrandK&N
Part Number81-1009
CategoryAir and Fuel

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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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