Restore factory-level idle performance in your Nissan Stagea C34 260RS with Terra Firma Automotive’s New Genuine Air Regulator Valve (IAC) for the RB26DETT engine. As a direct-fit original Unisia Jecs OE component, this valve is critical to maintaining proper idle control, especially during cold starts or fluctuating engine loads. A failing IAC valve is a common issue in aging RB-series engines, often causing idle surge, stalling, or failure to maintain consistent RPM at idle.

This genuine Nissan unit comes brand new in the original box—not refurbished, not aftermarket—ensuring exact fitment and reliable performance. The IAC valve works by controlling bypass airflow around the throttle plate, allowing your ECU to adjust idle speed based on engine temperature and demand. Over time, wear, contamination, or electrical failure can degrade the valve’s response, resulting in frustrating drivability issues.

At Terra Firma Automotive, we understand the importance of sourcing correct, high-quality parts for rare and performance-driven vehicles like the Stagea 260RS. That’s why we specialize in authentic, hard-to-find components that support the longevity and proper function of your RB26DETT engine.

Whether you're maintaining a factory-spec restoration or chasing peak performance, trust Terra Firma Automotive to deliver the OEM precision your Stagea demands. Replacing a faulty air regulator valve can make a significant difference in drivability and engine stability. Secure your new IAC today and keep your C34 260RS running as Nissan intended—smooth, reliable, and powerful.