Replacement RN31320001 Idle Air Control Valve with Gasket - 3-Port 2.4L

The Replacement RN31320001 is a direct-fit Idle Air Control (IAC) Valve designed to restore proper idle speed regulation on Nissan Frontier and Xterra models equipped with the 2.4L 4-cylinder engine. This valve precisely meters the airflow bypassing the throttle plate, allowing the engine control module (ECM) to maintain a stable idle under varying load conditions such as air conditioning engagement, cold starts, and electrical accessory cycling.

This replacement IAC valve is manufactured to meet OEM specifications and directly cross-references Nissan OEM part number 23781-3S510, ensuring a plug-and-play fit with no modifications required. The kit includes a pre-installed or included gasket for a complete, leak-free installation.

Key Features:

• Direct OEM replacement for Nissan part number 23781-3S510
• Designed for 4-cylinder 2.4L engines (KA24DE)
• 3-port valve configuration matching the factory design
• Includes gasket for a complete installation
• Restores stable idle speed and eliminates rough, erratic, or high idle conditions
• Plug-and-play fitment — no modifications required
• Manufactured to OEM specifications for reliable, long-term performance

A failing idle air control valve commonly causes symptoms such as rough idling, engine stalling at stops, high or fluctuating idle RPM, and poor cold-start performance. Replacing the IAC valve with this quality unit helps restore smooth, consistent engine operation.