Hit this up on eBay....very inexpensive for the Aisin OEM and other gear you get in this kit. I used this on my rig last week @ 172K miles....no issues. The ONLY thing missing in this kit was the thermo and I got that from RockAuto.
(1) Timing Belt (13568-09070) Made in USA
(1) Timing Belt Tensioner Bearing (13505-0F010) Made in Japan
(1) Timing Belt Idler Bearing (13503-0F010) Made in Japan
(1) Timing Belt Tensioner (13540-50030) Made in Japan
(1) Water Pump NEW (16100-59275-83) Made in Japan
(4) Water Pump Gaskets and Seals Made in Japan
(1) Upper Radiator Hose (16571-0F010) Made in USA by Napa/Gates
(1) Lower Radiator Hose (16572-0F010) Made in USA by Napa/Gates
(1) Serpentine Belt (90916-A2003 / 6PK2300) Made in USA
Aisin Toyota Tundra 4 7L V8 Complete Timing Belt Water Pump Radiator Hose Kit | eBay