K&N Universal Clamp-On Air Filter RU-4740 Reusable Engine Air Intake

Description

Product Overview

The K&N Universal Clamp-On Air Filter RU-4740 is engineered for maximum airflow and engine protection. Featuring four layers of premium cotton gauze treated with a special tacking agent, it traps contaminants while delivering a noticeable boost in horsepower and acceleration. The filter measures 4.5″L x 4.5″W x 6″H, weighs 1 lb, and is pre‑oiled for immediate installation.

Usage

Ideal for daily commuting, highway cruising, and light performance driving, this universal fit filter works with a wide range of makes and models. Whether you’re upgrading a stock vehicle or maintaining a high‑performance engine, the RU‑4740 provides consistent filtration in dusty or clean environments.

Why Choose Us

K&N’s reputation for durability and American craftsmanship ensures a filter that lasts a lifetime. The reusable design reduces landfill waste, and the 1‑year limited warranty offers peace of mind. Each filter is tested to meet strict OEM standards for fit and flow.

Key Features

• Reusable cotton gauze media delivers up to 10% horsepower gain.
• Clean only once every 75,000 miles, saving money on replacements.
• Universal clamp‑on design fits a broad range of vehicles without modification.
• Durable construction built in the USA for long‑term reliability.
• 1‑year limited warranty and responsive customer support.

FAQ

How often do I need to clean the filter?

Under normal highway driving, clean the filter every 75,000 miles, roughly once every five years.

Can I install the filter myself?

Yes, the filter comes pre‑oiled and includes a clamp‑on design that drops directly into the factory air box.

Is this filter compatible with my vehicle?

The universal fit works with most makes and models; check the K&N fit guide for specific applications.

What warranty does K&N provide?

K&N offers a 1‑year limited warranty covering manufacturing defects.

Does the filter improve fuel efficiency?

Improved airflow can lead to a modest increase in fuel efficiency, especially in engines that were previously restricted.