Felix

Wow, super low miles.....If its not leaking or has any issues, Why replace it? I'd run it till it needs replaced same as everything else......I would recommend to replace the rubber oil cooler hoses w/ metal ones as well as replace the bank one vvti oil line.....The vvti oil line is spiced w/ a rubber hose vs the bank two which is a solid metal line. Why? I have no idea. http://dorman.com has a metal oil cooler line kit....FYI, the 350 has a 2gr-fe uses a t/c vs the (330) 3mz-fe which uses a t/b, which you'd want to replace the w/p since your there & you wouldn't want to do the job twice. I'd also change the trans fluid & filter as well as change out the rear diff & transfer case oil, a quart each. I used a gallon of Maxlife trans oil which is a synthetic oil & is Toyota rated WS, T-IV, Wix trans filter & 2 qtrs of Royal purple 75/90 diff oil.

evident

Just replaced a noisy idler pulley in my 07 and noticed that there is a small leak in the water pump area. Is there a comprehensive list of all the oem parts so i can tackle this job?

Thanks!

Mesquite77

Get the AISIN water pump kit from rockauto, it comes with the pump and gaskets, may want to get their thermostat while you're at it (and the gasket). I replaced mine this summer and the pump had the word "Toyota" ground off it, so it is OEM, fit perfectly.

mumble

I second the AISIN kits. Their kits are OEM, including bearings when applicable. Other kits skimp on things like bearings, belts, gaskets and claim it's an OEM pump (or timing belt). With AISIN the entire kit is OEM.

groomerz

No need to disconnect radiator hose from t stat housing as replacing t stat anyway
I put sealant on all 12 mm waterpump bolts
engine mounts. Easier to remove 3 bolts on bottom of front and passenger side mounts. There are rubber plugs in frame to access. Easier than trying to get top studs. Also there are 2 differential mount bolts behind pass wheel loosened all the way so easier to raise engine

ghuns

Looks like this job is in my future.

At 250K nearly trouble free miles, I really shouldn't complain.

I'll be replacing all the pulleys since they'll be off anyways. Looks like the two idler pulleys are the same part#. Anybody know the part number for the tensioner pulley?

rdsrx350

Febest PULLEY TENSIONER KIT # 0187-GSU45 OEM 16620-31031

Margate330

Can't complain with that.

Sounds like a $1k job tho but not sure of current rates parts & labor.
Original Water pump?

ghuns

Yep. Even original serpentine belt.

Got quotes from $800-1300 to just replace water pump.

I'm gonna diy it. Just ordered $355 in parts. Three pulleys, water pump, serpentine belt, thermostat, and coolant.

ghuns

Thanks again to the OP for the detailed write up.

We were out of town Friday-Sunday so I spent most of yesterday cleaning my garage which was nearly impassible thanks to some home improvement projects.

I wasn't sure I wanted to dive into it at 4PM yesterday but I went ahead and got started. Had the water pump off by 7PM.

At 240K, it was definitely used up...




I was able to reach everything from the top with motor raised up so the intake was just about touching the wiper cowl. Nice thing about aluminum motors is nothing is torqued overly tight so my stubby little SK 1/4" drive ratchet was all I needed to break the WP bolts loose. Once they were loose a 1/4" thumbwheel ratchet was super handy for unscrewing them.

For me, the part that took the longest was getting the small rubber hose in the center of motor off the thermostat housing. Very limited access to the spring clamp and that hose was really stuck on there.

One thing that surprised me, if I didn't know the serpentine belt had 240K on it, I'd put it back on. That thing looks great. Zero cracking or dry rot.

chuyrobles

For benefit of others … alternatively, if the pulleys are in good condition, you can replace just the bearings. The two idler pulley bearings are sized 10x42x13 (6302RMX) and the tensioner pulley houses two bearings, sized 12x40x17 (6203-2RS). Another pulley option for the tensioner is Gates/ACDelco 36174; that is what I put in our 07 ES350 in 2018 when I replaced the water pump.

Mrsynn64

Perfect step by step on the process.

I had my 09 done in just over 6 hours total, taking my time.

evident

Crap. this is in my near future for my 07 w/ 150K miles. 3 weeks ago during a cold snap i can hear my waterpump being really noisy in the morning. I just finished overhauling my TSX front suspension and wasn't really looking forward to tackling another car project. ugh!