K&N RU-1042 Universal Air Filter

K&N RU‑1042 Universal Clamp‑On Air Filter – RU‑1042

K&N RU‑1042 is a high-performance universal Clamp‑On air filter developed for high air intake requirements. It provides reliable filtration and long service life in engine applications that require high air flow. Its flexible connection flange allows it to work with many systems.

✅ 4-layer cotton filter structure for maximum air flow and effective filtration

✅ Elastic rubber flange with ±1.5 mm diameter tolerance

✅ Washable and reusable; service life up to 75,000 miles

✅ Ideal for high-performance engines

✅ Durable material and 1-year limited manufacturer's warranty

The wide outer diameter and high filtration surface allow the engine to draw air more efficiently. The aim is to increase performance and ensure long engine life. Can be used in off-road vehicles, modified cars, and custom-built systems.

Technical Specifications

- Flange inner diameter: 102 mm (4 in)

- Filter height: 152 mm (6 in)

- Base diameter: 152 mm (6 in)

- Top diameter: 127 mm (5 in)

- Flange length: 25 mm (1 in)

- Pre-lubricated, ready to use

Compatible Applications

- Modified performance vehicles

- Large-volume engine systems

- Off-road, drag, and racing applications

Installation

The flange is secured to the pipe using a clamp. It is directly compatible with a 102 mm inlet diameter. Installation is easy and does not require professional assistance.

Note

Thanks to its universal design, it is compatible with a wide range of performance systems. It is recommended to perform a measurement check before installation.