K&N E-3730 High-Flow Round Air Filter - 14" OD x 12" ID x 4" H

Vehicle Fitment

• Universal round air filter - fits any airbox housing with ~14" outside diameter x 12" inside diameter and ~4" height.
• Not listed for specific year/make/model/engine applications in verified catalog - verify your airbox dimensions before purchase.

Features

• High-flow cotton gauze filter media engineered to enhance airflow and performance
• Washable and reusable design for long-term use
• Pre-oiled and ready for installation
• Drop-in replacement format suited for compatible factory or aftermarket airboxes
• Improved filtration for better engine protection from dust and debris
• Durable construction for extended service life
• Optimized for performance and maintenance reduction
• Limited lifetime warranty (where applicable)

Specifications

• Material: Oiled cotton gauze media
• Outside diameter (OD): 14.00 in (356 mm)
• Inside diameter (ID): 12.00 in (305 mm)
• Height: 4.00 in (102 mm)
• Shape: Round filter element
• Weight: approx. 2.5 lb (1.2 kg) - typical for unit

Included Components

• 1x K&N E-3730 high-flow round air filter (pre-oiled)

Product Description

The K&N E-3730 is a premium high-flow round air filter designed for applications that accept an element with roughly 14" outside diameter, 12" inside diameter and 4" height. Its washable and reusable cotton gauze media allows for enhanced airflow and solid engine protection.

Installation is straightforward when your housing matches the size profile: remove the existing filter, insert the E-3730, and secure the housing cover. With pre-oiled media, it's ready to go with minimal effort.

Since this part is dimension-based and *not matched* to a specific vehicle make/model/year/engine in the manufacturer's verified listing, buyers must confirm compatibility with their specific airbox. Fitment through 2025 is unconfirmed and should be verified prior to purchase.