Idle Air Control (IAC) Valve Bypass Hose | 1985-1988 22RE

Idle Air Control Valve Bypass Hose

Keep your classic Toyota idling smoothly and reliably with this premium Idle Air Control (IAC) Valve Bypass Hose. Connecting the throttle body directly to the IAC valve, this specialized molded coolant/air bypass hose plays a critical role in your engine's cold-start idle management. Over decades of heat-cycling under the hood, the factory rubber hose becomes brittle, hardens, and develops hairline cracks-leading to vacuum leaks, erratic idling, or coolant weeping that can disrupt your engine's performance.

Precision-molded to match the tight, original equipment (OEM) bends exactly, this replacement hose ensures a stress-free fit without kinking or restricting flow. It is constructed from an advanced EPDM rubber compound engineered to withstand high under-hood temperatures, oil vapor exposure, and constant cooling system pressure, restoring factory-level reliability to your 22RE induction system.

Key Features & Benefits

• Eliminates Vacuum & Coolant Leaks: Replaces hardened, cracked factory lines to resolve surging or erratic idle speeds caused by unmetered air leaks.
• Direct OE Fitment: Specially molded to follow the precise factory routing and angles between the throttle body and the IAC valve, preventing crimping or firewall rubbing.
• Heavy-Duty Construction: Manufactured from premium, heat-resistant EPDM rubber designed to survive the harsh thermal environments of classic engine bays.
• Restores Cold-Start Stability: Ensures unhindered flow to the IAC valve assembly so your engine can properly regulate its target RPM during warm-up periods.

Technical Specifications

• Hose Placement: Connects the throttle body outfeed directly to the Idle Air Control (IAC) valve housing.
• Material: High-temperature, pressure-rated molded automotive EPDM.

Kit Includes

(1) Molded Throttle Body to IAC Valve Bypass Hose