Nissan Stagea C34 260RS Idle Air Control/ACC Valve to Plenum Hose RB26DETT

Maintain factory-correct performance and drivability in your Nissan Stagea C34 260RS with Terra Firma Automotive’s New Genuine Idle Air Control (IAC) Valve to Plenum Hose for RB26DETT engines. This molded elbow hose—also known as the Auxiliary Air Control (AAC) hose—connects the idle air control valve to the intake plenum and plays a crucial role in stabilizing idle and delivering balanced airflow at low RPMs.

Over time, the original hose is often subjected to heat cycles, hardening, and cracking, making it a common source of vacuum leaks that can lead to erratic idle, stalling, or air/fuel mixture issues. This brand-new OEM unit is molded to exact factory shape, ensuring a tight seal and correct airflow routing between the throttle body and intake equalizer chamber.

Unlike generic or universal hose replacements, this genuine Nissan part fits precisely without modification and restores your Stagea’s RB26DETT to its intended performance. Whether you're troubleshooting idle issues or performing a thorough engine bay refresh, replacing this hose is a simple yet essential step in keeping your engine responsive and efficient.

Terra Firma Automotive specializes in rare, discontinued OEM parts for Nissan performance models, and this hard-to-find component is no exception. Trust our expertise and commitment to authenticity when sourcing critical engine hardware for your RB platform. Avoid makeshift fixes—choose a genuine solution designed to last. Order now while limited supplies remain, and keep your Stagea running at its peak with parts built to Nissan’s highest standards.