Toyota 3RZ-FE Water Pump & Thermostat Replacement

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In this video, we show you how to replace the Water Pump and Thermostat on the Toyota 3RZ-FE 2.7L 4 Cylinder Engine. This engine was used by Toyota 1994 to 2004 in the following models:
*3rd Gen 4runner
*1st Gen Tacoma
*Land Cruiser Prado
*TORQUE VALUES*
*Water Pump 12mm Bolts - 18 ft-lbs or 216 in-lbs
*Water Pump 10mm Bolts - 78 in-lbs
*Thermostat Housing Nuts - 15 ft-lbs or 180 in-lbs
*Alternator Pivot Bolt/Nut - 43 ft-lbs
*Alternator Tensioner Locking Bolt - 21 ft-lbs
*AC Idler Pulley Locknut - 22 ft-lbs
*Power Steering Idler Pulley Locknut - 29 ft-lbs
*PARTS*
*Aisin Water Pump #WPT-044 amzn.to/3MJYxMG
*Aisin Thermostat #THT-O13 amzn.to/47B1jvI
*Toyota Radiator Cap #16401-36030 amzn.to/47CXg1T
*Bando Power Steering Belt #4PK1110 amzn.to/3G1k5AA
*Bando AC Belt #4PK915 amzn.to/3R3qKk8
*Bando Alternator Belt #5PK865 amzn.to/3R0dZ9M
*Oil Dipstick O-Ring #96721-19010 amzn.to/49EPCWA
*Upper Radiator Hose #16571-75180 amzn.to/46bj2bX
*Lower Radiator Hose #16572-75090 www.toyotapartsdeal.com/oem/t...
*Toyota Red Long Life Coolant Concentrateamzn.to/37lyhB
*Distilled Water (Get at any grocery store)
*HELPFUL TOOLS*
If you're looking for other tools not used in this video, check out Timmy's Master Tool List.
www.amazon.com/shop/timmythet...
*Long Set of Ratcheting Box End Wrenches amzn.to/2oOhndL
*Stubby 3/8” Flex Head Ratchet - (it use to be available for sale separately but now we can only find it as part of this 4-piece set. These ratchets with a flex head and 120 points of engagement are a game changer. I love these ratchets!)
amzn.to/39kQVit
*Flex Head Box End Wrench Set amzn.to/31x8BOo
*3/8" Drive 6 Point Metric Standard Socket Set amzn.to/32WIh0M
*3/8" Drive 6 Point Metric Deep Socket Set amzn.to/37iQjVt
*3/8” Drive Regular Extension Set amzn.to/2OehCao
*3/8” T-Handle Tool (One of Jordan’s favorite tools) amzn.to/2Zf7Fie
*OTC 6673 Universal Belt Tension Gauge amzn.to/2D8CH0y
*Milwaukee M12 3/8” Cordless Ratchet (I prefer my Milwaukee ratchets over the T-handle tool Jordan liked to use. I love these ratchets for the time they save me) amzn.to/2utRZsE
*Milwaukee M12 3/8” Cordless Extended Reach Ratchet
amzn.to/3kOsUS6
*Milwaukee M12 Battery amzn.to/3FJZO1j
*Milwaukee M12 High Capacity Battery amzn.to/2HEFTpu
*Milwaukee M12 Battery Charger amzn.to/2uo2o9x
*Offset Box End Wrench Set amzn.to/2sei01t
*90 Degree Needle Nose Piers (I prefer to use these to compress and move hose clamps rather than the big slip joint pliers Jordan used) amzn.to/2VYUro8
*20 Piece Screwdriver Set amzn.to/34aLrQ1
*Silicone Plug Kit amzn.to/46X61nc
*Toyota FIPG 1282B #08826-0010 (In case you saw any significant pitting on the block surface you wanted to fill in. ebay.us/FD48Jr
*Lisle Spill-Free Funnel amzn.to/2SnrPFV
**As Ebay Partner Network members, we earn commissions from qualifying purchases.
**As Amazon Associates, we earn from qualifying purchases.

[@deluxe1030]

I got over 200,000 miles on my 99 PreRunner with that same engine. It still has the original water pump and alternator. AC still working too. I think I should swap out my water pump soon before I blow up my baby. I’m original owner too. Love your videos !!!

[@TimmyTheToolman]

Yeah, it probably would be good for you to do some cooling system maintenance. If your radiator is original, I'd replace it too along with the both hoses. I'm glad you like what we're doing. Thanks for the comment!

[@Bluecollar_armorer]

Easily some of the most detailed, enthusiastically explained, and damn near perfect camera angles to show every part of the job. You guys rock! I reference all your videos for new and repeated service on my 2000 3rz reg cab 👌🏼

[@TimmyTheToolman]

We are really stoked you’re making use of our videos and we appreciate you stoping by the comments section to give us some props. - Sean

[@jamesm2889]

It's a beautiful thing when 2 guys work together on a truck they know

[@TimmyTheToolman]

Yeah, I guess it is a beautiful thing. Thanks for the comment.

[@k6-3spetznazhelmet]

Many, MANY, thanks... Helped me step-by-step replacing my waterpump and thermostat. Again, one million thank yous!!!

[@TimmyTheToolman]

You're very welcome. I'm glad our video helped you get the job done. Happy Wrenching!

[@mandoky1647]

Rotate the belt 90 degrees. If there's tension on 90 degrees then it's good.

[@Aaron-uz8xt]

I have a 98 4runner 2.7 I'm pretty sure the water pump is going out and I'm glad to see this video posted by you recently. Always helps to know exactly what I'm doing first to make the job smoother.

[@TimmyTheToolman]

Good luck with the job Aaron. Hope it goes very smooth for you.

[@Aaron-uz8xt]

@@TimmyTheToolman Thank you. I just finished it up today I put a new Aisin water pump and new thermostat and fan clutch in. I put a new Denso radiator in in June which unfortunately got dented up installing the new water pump but no leaks lol. I was trying to be careful like you warned but goofed up. I had to pry the fan clutch off but made sure to put a pad in there for that part. For some reason we took the pad out when we went to pull the pulley off and it was kinda stuck and it busted right into the fins. Seems like everythings working good so far though in the 25 mins I drove it home. The engine only has about 130k on it and transmission was rebuilt so hopefully should be good for a long time. Thanks for the quality video man

[@TimmyTheToolman]

@@Aaron-uz8xt Great job getting it done. I wouldn't worry about bent cooling fins. It's not a big deal. I'm glad our video helped you out. You're very welcome!

[@carlturlington4847]

Nice clean engine bay. Like his mindset.

[@TimmyTheToolman]

Jordan probably has the most well-maintained 3rd Gen 4runner with a 3RZ engine on the planet.

[@dswilliamson2112]

Going in on my T100. Thank you I needed to see this. Going all new with hoses and pulleys., fan, blade, and fan clutch, all oem and new. Thank you so much.

[@TimmyTheToolman]

You're very welcome. Good luck with the job!

[@dswilliamson2112]

@@TimmyTheToolman OK friend don’t laugh but I’m a newbie at all this. The only thing I’ve ever done is change the oil so here it goes. I’ve got a new fan a new fan clutch and a new water pump. Can I just assemble all those into 1 piece I’m not using any of the old parts, Also changing the tension pullies out. How would you go about getting the old fan fan clutch and stuff off? Would you change the way you did in the video

[@dswilliamson2112]

And I’m not using any gasket maker or anything like that correct I didn’t see you do it. I did it every single gasket I needed, including a really premium composite gasket for the water pump.

[@TimmyTheToolman]

@@dswilliamson2112 Just do it like we show in the video. You'll be golden. Yeah, no gasket maker unless you see significant pitting on the block surface where the water pump seals.

[@benaldredge2671]

Great video! Tim, you always crack me up with your observations (water pump). That is a very nice 4Runner…..clean!

[@TimmyTheToolman]

Thanks Ben! Nice that you're recognizing the powers of observation from my twisted mind. Yes, Jordan probably has one of the cleanest and well-maintained 4runners on the planet.

[@JLeeChron]

Glad ya did this one! Thanks, beat me to it, but you are more thorough Tim

[@TimmyTheToolman]

Thanks! Heavily thorough and detailed videos are our goal. Some people hate us for it, but most love that we put the extra effort in. I appreciate your comment. Good luck with your channel.

[@richardsauer599]

Love the videos. You have a great group of friends!

[@TimmyTheToolman]

Thanks Richard. Yeah, I'm pretty lucky with the friends I have. All good dudes.

[@isaiahscarborough1654]

Man oh man. Just the video I needed! About to do my own new engine in my 3rz and this video answered a lot of questions about what I need to do, especially when it comes to taking off the belts. Thanks!

[@TimmyTheToolman]

Good luck with the job Isaish. Happy to hear our video answered some of your questions of how to tackle this job. Happy Wrenching!

[@warthhoh]

Awesome video Timmy

[@TimmyTheToolman]

Thanks Jay!

[@martinomelau6538]

love your videos man, so informative. i myself have a 5 speed manual 99 4runner. more videos on the 3rz please.

[@TimmyTheToolman]

Thanks Martin. Unfortunately, Jordan was my main source for making 3RZ engine videos, and he lives in Atlanta, Georgia while I live in San Jose, California. But, who knows, maybe we'll meet another local guy with either a 3rd Gen 4runner or 1st Gen Tacoma with a 3RZ engine.

[@stevanrose7439]

Another great video from Timmy the tool man 👨👍👍👍.

[@TimmyTheToolman]

Thanks Stevan. I'm glad you like it.

[@TheosEpicVideos]

This engine is so clean....

[@TimmyTheToolman]

Jordan takes very good care of his vehicles.

[@brockbrawn1524]

Love the videos timmy. Hoping that you come out with a 3rz power steering pump video soon. You know, for a friend of mine. 😅

[@TimmyTheToolman]

If someone local hits us up for help with that job, we'll certainly help them and film it. We're glad you like the videos we make.

[@stco2426]

As ever, loads and loads of great content for many similar Toyotas and a really nice 4Runner. On the ‘misprint’ (yeah seen a few) I’m glad you pointed to the ‘standard’ torque settings at the front of the book for bolts etc based on their size. There are also torque settings elsewhere in the books for steel bolts of similar size into aluminium parts or that compress aluminium parts, such as on the thermostat housing as you had. Something else to bear in mind is that these torque values look to be for dis-assembly. They are maybe to warn you to not apply too much force and try other methods to avoid snapping etc, but I could be wrong? I think the giggle valve is there to allow a bit of hot water through, otherwise the thermostat can be starved of coolant that is hot enough to otherwise open it, or in its own bubble of cooler coolant, if that sounds better. I guess it’ll also let a bit of air through for fresh coolant that has more air dissolved. Really like that funnel and the excellent advice throughout. These vehicles are not that complicated but they need care and attention when servicing otherwise things get missed, go missing or get broken. Cool!!

[@TimmyTheToolman]

Thanks for the comment. I've never seen just disassembly torque values. When they put them there as part of the steps to remove something, it's actually the torque value for reassembly. I've never seen two different values in the FSM pages. Thanks for sharing your thoughts on the purpose of the jiggle valve. Yep, the Lisle Spill-Free Funnel is a game changer. Happy Wrenching!

[@Mick-oi3wy]

Good Afternoon guys! I love the videos, always find myself coming here because you guys just know a lot about the 3RZ. I have one in my 97 Land Cruiser Prado and it has an issue that I can't find. Upon a cold start (right in the morning after a night), the engine doesn't idle at 1800, then drop to 800 RPM after warming up. It just sits at 1000, or sometimes it stalls at 400 RPM. When it's warmed up, rest of the day has zero issues. Replaced both coolant temp sensors, new spark plugs, new MAF, cleaned IAC and throttle body, nothing. Thanks for the videos again, been a life saver multiple times!

[@TimmyTheToolman]

It does sound like an IAC valve issue. Maybe when it is cold, the valve sticks, but when warm, the little door moves more freely.

[@Mick-oi3wy]

@@TimmyTheToolmanThanks for the reply! That sounds like a possibility. Ill take it out when cold and test it with a multimeter and see if it moves slow.

[@TimmyTheToolman]

@@Mick-oi3wy Let us know what you find out.

[@Mick-oi3wy]

@TimmyTheToolman Good Afternoon! Lo and behold, the valve is gunked up with some brown rust looking substance. Maybe time for a new rubber gasket. I wish I could send you a picture because this looks real wierd.

[@Mick-oi3wy]

@TimmyTheToolman Nevermind. Cleaned the rust out, still acting up. Just gonna buy a new IAC

[@Dad_Legs]

What in line filters are on Jordan’s 3rz? PS in-line any info on that in particular? And of course, as always, we all appreciate these videos. Wouldn’t know what to do without them!

[@TimmyTheToolman]

It's just an in-line filter: Magnefine 3/8" Magnetic In-line Transmission Filter amzn.to/35p6heN Good to hear you appreciate our videos.

[@Dad_Legs]

@@TimmyTheToolman gracias!

[@TimmyTheToolman]

@@Dad_Legs De nada

[@celaljasem]

Hey Timmy, love the commentary, I saw your ps reservoir video, do you have a PN for the o ring that mates the reservoir and the pump? For the 3rz? I’m doing a water pump Job as well as ps at once

[@TimmyTheToolman]

Happy to hear you like my commentary. I don't have a part number for the 3RZ power steering reservoir o-ring for the connection to the pump. But, since that is such a cheap thing to buy, I'd just order it from your local Toyota dealer.

[@SasukeUchiha-mj2vh]

Hello, nice video! Maybe you can help. In winter, at highway, the heater radiator goes cold, and there appears some air in the cooling system (can hear some streaming sounds). After stop and turn off engine and start again, the radiator starts heating. Cold/Hot switch valve is working ok.

[@TimmyTheToolman]

Try burping the system with a Lisle Spill-Free Funnel. Have the front of the vehicle higher than the rear to help facilitate the removal of air from the system. While burping the system, have the heater control to full hot. Lisle Spill-Free Funnel amzn.to/2SnrPFV

[@SasukeUchiha-mj2vh]

@@TimmyTheToolman thanks. I mean, air appears at high speed again after removing all air. Also air appears at night while cooling. I changed some hoses, may be sucks some air while cooling, but still can't locate where air comes from:)

[@RotoRCol]

is the pink coolant fluid compatible in this model?

[@TimmyTheToolman]

The pink coolant came out a little later for newer models. Would it work? I think so. I did see a TSB saying the long life and super long life coolants were compatible. But, to play it safe, I'd just use the Red Long Life Coolant concentrate and mix it 50/50 with distilled water.

[@mandoky1647]

Maybe mention the pin at the top being in the 12 o'clock position lol.

[@seselapaz]

Do you hace any video upgrading the horns/claxon??

[@TimmyTheToolman]

No, we don't.

[@seselapaz]

@@TimmyTheToolman one more question… I would like to replace the vacuum lines, what measures do I need?

[@TimmyTheToolman]

@@seselapaz When I need a vacuum hose, I just order them from my local Toyota dealer.

[@seselapaz]

@@TimmyTheToolman i see, well I would like to get some color ones to customize it but I don’t think the dealer sell them

[@JuanGarcia-rk8ue]

Hey man I have a 2000 2.7 Tacoma do these belts fit it also? Amazon says it’s not a match for my truck

[@TimmyTheToolman]

Yes, they'll fit. Amazon sometimes will say a part won't work when it does.

[@JuanGarcia-rk8ue]

Thank you much appreciated!

[@TimmyTheToolman]

@@JuanGarcia-rk8ue You're welcome!

[@robertshirlingjr.6988]

What manual do you use? I have a 01 4ruuner. Thanks

[@TimmyTheToolman]

The Toyota Factory Service Manual.

[@robertshirlingjr.6988]

I meant repair manual

[@TimmyTheToolman]

@robertshirlingjr.6988 Yeah, that's what I thought you meant. We use a Toyota Factory Sevice Manual, which is a repair manual.

[@robertshirlingjr.6988]

What repair manual do you use? Thanks

[@kdmtmb7657]

Great idea using cardboard

[@TimmyTheToolman]

Yeah, Jordan comes up with some great ideas.

[@jordanziegenbein4479]

Dad taught me that one. We had a special piece of cardboard just for 22RE radiators.