IAC Coolant Bypass Hose #2
Keep your throttle body assembly operating smoothly with a premium factory-replacement Idle Air Control (IAC) Coolant Bypass Hose from LC Engineering. Positioned right at the heart of your 2.4L engine's intake tract, this specialized molded hose routes engine coolant directly to the IAC valve to regulate cold-start idle speeds properly.
Over decades of heat cycles under the hood, factory molded rubber hoses become extremely brittle, balloon under pressure, or dry-rot from the inside out. A failure here leads to tricky coolant leaks beneath the intake manifold or introduces air pockets into the cooling system, causing a surging or erratic engine idle.
Product Features
- Direct Factory Fit: Pre-molded to the exact factory dimensions and sharp bends required to clear the throttle body housing without kinking.
- Premium EPDM Construction: Engineered to survive extreme engine bay temperatures, high pressures, and modern coolant additives.
- Preventative Essential: An ideal, cost-effective replacement when refreshing your intake gaskets, swapping a cylinder head, or servicing the throttle body.
Technical Specifications
- Application: Idle Air Control (IAC) Valve to Water Bypass Circuit
- Engine Compatibility: 2.4L 4-Cylinger 22RE / 22REC (Fuel Injected)
- Model Years: 1985-1995 Toyota Pickup, 4Runner, and Celica
- Genuine OEM Toyota Part Number: 16264-35030
Installation Note
While replacing this bypass hose, it is the perfect time to clean out any carbon buildup inside your Idle Air Control valve ports. Always use high-quality constant-tension spring clamps to secure the new hose to ensure a reliable, leak-free seal through endless expansion and contraction cycles.
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- 1985-1995 Toyota 4Runner
- 1985-1995 Toyota Pickup