NBR NTA-0C010 is a guide/deflection idler pulley for the accessory drive belt. Cross-referenced to Toyota pulley sub-assembly No. 1, including OE 16603-0C010 and the related Toyota numbers listed under Masuma MIP-1004. Applications include selected Toyota Land Cruiser Prado, 4Runner, FJ Cruiser, Hilux and other vehicles, depending on engine and production period. This is an idler pulley, not the complete belt tensioner assembly. Confirm fitment by VIN, OE number, engine and production date before installation.