Toyota 1734346100 Vacuum Air Hose Assembly No.3

Genuine Toyota manufactured vacuum piping component designated as Air Hose No.3. Constructed from oil-resistant rubber compound for durability in engine compartment environments. Functions within the vacuum switching valve system to manage intake manifold pressure signals. Direct replacement for factory installed hose on specified Toyota and Lexus models equipped with 2JZGE 3.0L inline-six engines. Supersedes part number 17343-46100. Country of origin: Japan. Compatible with Lexus GS300 (1998-2005), GS400 (1998-2000), GS430 (2001-2005), IS300 (2001-2005), SC300 (1997-2000), SC400 (1997-2000) and Toyota Supra MK4 (1997-1998). OEM cross-reference includes Lexus part number 1734346100. No universal fitment; application specific to listed vehicle platforms.