Detailed DIY install of water pump, thermostat, radiator hoses, and serpentine belt on an 2007 IS250. Guide also works for IS350, GS350, RC350. Basically any of the 250 or 350 RWD or AWD engines.
See links below for the parts you need. Mostly all OEM.
Only one I recommend aftermarket is the Bando or Mitsobushi belt. These go for $13 all day but OEM is $60 for same thing.
OEM Water Pump
https://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&toolid=11800&pub=5575366682&campid=5338249366&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FFACTORY-OEM-TOYOTA-LEXUS-IS-GS-RC-NEW-ENGINE-WATER-PUMP-16100-39436%2F152605151982%3Ffits%3DModel%253AIS250%26epid%3D9006597810%26hash%3Ditem2387f9d2ee%3Ag%3AtdwAAOSwU1FaA2Gh%26vxp%3Dmtr
OEM Lower Hose
https://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&toolid=11800&pub=5575366682&campid=5338249366&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FFACTORY-OEM-LEXUS-06-12-IS250-IS350-NEW-LOWER-RADIATOR-HOSE-16572-31250%2F172864473211%3FssPageName%3DSTRK%253AMEBIDX%253AIT%26_trksid%3Dp2057872.m2749.l2649
OEM Upper Hose
https://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&toolid=11800&pub=5575366682&campid=5338249366&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FFACTORY-OEM-LEXUS-06-12-IS250-350-RADIATOR-HOSE-LOWER-UPPER-DAYCO16571-31170%2F162793048304%3Fhash%3Ditem25e738c8f0%3Ag%3AakEAAOSwDFBaKWSY%26vxp%3Dmtr
Bando Belt
https://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&toolid=11800&pub=5575366682&campid=5338249366&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FSerpentine-Belt-Rib-Ace-Precision-Engineered-V-Ribbed-Belt-BANDO-7PK1550%2F263270157039%3FssPageName%3DSTRK%253AMEBIDX%253AIT%26_trksid%3Dp2057872.m2749.l2649
OEM Thermostat
https://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&toolid=11800&pub=5575366682&campid=5338249366&mpre=https%3A%2F%2Fwww.ebay.com%2Fitm%2FFACTORY-OEM-TOYOTA-LEXUS-WATER-INLET-SUB-ASSY-WITH-THERMOSTAT-16031-31020%2F152271173874%3FssPageName%3DSTRK%253AMEBIDX%253AIT%26_trksid%3Dp2057872.m2749.l2649
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Is your battery ratchet a 1/4” or 3/8” drive?
Hi Binh. When you attached the water pump, you started torquing down the 12mm bolts starting from the right side to the left side correct? Any other tips or tightening sequence you can provide more info on?
Are you gonna make a spark plug replacement video any time soon?
Very good video Bing! You speed up the when needed and provide detailed steps and advice. Love how you change out parts before they break instead of waiting for an emergency to happen. I am subbed!
How much miles do you have on this car and did the pump go out or you just want to change it before it goes?