K&N

14" OD x 12" ID x 4" Round Air Filter

$92.47

SKU: E-3730

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

Description

The K&N E-3730 is a high-flow, reusable air filter designed to enhance your vehicle's performance. This design is intended to deliver a measurable increase in horsepower and acceleration. Crafted for longevity, this performance air filter is built to last for the entire lifespan of your vehicle. The filter's physical specifications include a 14-inch outside diameter, a 12-inch inside diameter, and a 4-inch height, with an open top style and no flanges. The cotton gauze material ensures durability and effective filtration. Designed for straightforward installation, the K&N E-3730 is engineered to fit easily into your factory air box, making it a convenient upgrade. It is also washable and reusable, requiring cleaning only every 50,000 miles under normal highway driving conditions. This filter is emissions legal in all 50 states and is backed by K&N's No-Hassle Lifetime Limited Warranty, assuring you of its quality and durability.

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 NumberE-3730
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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