Heater Hose/Tee Replacment (1 Viewer)

[Timmy65]

Hey Dudes,If you've never replaced the heater hoses and tees at the back of your engine, it might be something to consider. It's not so much the hoses that are prone to failure, but it's the plastic tees that have gotten brittle over the thousands of heating and cooling cycles of the engine. If one of those tees breaks, you will be stranded unless you carry some type of hose mender kit that can get you home. And, if you're going to replace the tees, you may as well replace the hoses too, because they could spring a leak, especially if you haven't always renewed the coolant at regular intervals and let the coolant get very acidic. Acidic coolant can shorten the lifespan of your hoses.

I do suggest that you don't use the OEM plastic tees as a replacement. Toyota/Lexus does sell a brass version of that tee which is way more durable than a plastic tee. We link a complete hose/tee/clamp kit sold by Cruiser Patch in the video description and we also provide all the individual part numbers if you'd like to shop for them individually from your Toyota/Lexus parts seller of choice.

If you watched our recent Coolant Replacement video, you'll notice a lot of the footage is exactly the same in this video because we were filming two videos at the same time. If that's the case, just fast forward to the part of us replacing the hoses and tees.

Hope you guys like the video. Happy Wrenching!

Heater Hose Replacement (100 Series Land Cruiser & Lexus LX470) - Timmy the Toolman

Did our video help you? If so, consider buying us a beer: https://bit.ly/3feE6tJ

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[SMLE]

Love your videos Timmy! The 'T's' are well documented on here but good to know about options, and that's a super helpful video!

Don't suppose you know if the brass OEM replacements (87248-95400) will also fit a 1HD-FTE (4.2TD version) option of the 100 series? I assume so but curious to know.

Thanks

 

[Hugh Heifer]

Just one of many:

Change Those Heater Tees!

Got around to changing the heater tees. I went with the stainless replacements, because I want something more permanent. However, word to the wise..if you choose the stainless replacements, be sure to get the worm clamps and replace those pressure clamps! The hoses won't seal on the metal tee...

forum.ih8mud.com

Barbed 5/8 brass tees work fine and will likely never fail.

 

[Timmy65]

Love your videos Timmy! The 'T's' are well documented on here but good to know about options, and that's a super helpful video!

Don't suppose you know if the brass OEM replacements (87248-95400) will also fit a 1HD-FTE (4.2TD version) option of the 100 series? I assume so but curious to know.

Thanks

I don't know if the brass tees will work for that engine. I'm not even sure if it will work for every 2UZ-FE engine, because the 2UZ-FE was used in a lot of different models and maybe the heater hoses they used could be of a different diameter.

 

[Timmy65]

Just one of many:

Change Those Heater Tees!

Got around to changing the heater tees. I went with the stainless replacements, because I want something more permanent. However, word to the wise..if you choose the stainless replacements, be sure to get the worm clamps and replace those pressure clamps! The hoses won't seal on the metal tee...

forum.ih8mud.com

Barbed 5/8 brass tees work fine and will likely never fail.

Yeah, it wasn't till I started reading Amazon reviews of those stainless steel tees my buddy Vincent purchased that I realized the fittings were a little undersized. I do remember the hoses going on very easily which should have been a clue they were slightly undersized. This is why I made that pinned comment talking about the issue with the tees we used in the video and didn't bother providing a link in the video description to them. I think the brass tees are the way to go. They aren't exempt from failure though. If someone abused their cooling system and rarely renewed the coolant, the acidity that was allowed to build up in the coolant could start deteriorating the brass. But, no doubt, brass is leaps and bounds better than plastic.

 

[ranma21]

Thanks for sharing your video =) OEM plastic T usually last a long time, to me is a maintenance parts that needs to be replaced every 90k/10yrs whichever comes first. Most busted ones are due to lack of maintenance or should I say neglected or oblivious of. The ones on my 04 lasted 189k, pretty much on its last leg when I got the truck at 189k miles. I usually advise my customers to replace them every 90k miles when timing belt replacement due or 10 yrs whichever comes first. Factory copper T used in 80 series works too but been discontinued, also earlier 80 uses copper radiator as well. Please note copper and brass are 2 different metals with different properties, brass contains copper and zinc. Toyota switch to plastic in 100 series and later model. I would stick with OE plastic T to prevent the possibility of galvanic corrosion due to dissimilar metal in the cooling system. So by introducing stainless steel or brass T into your cooling system, you are introducing 2 more different properties than the components of your engine. It may not be the best idea as majority of the 2UZ uses iron and aluminum. Just my 2 cents.

 

[rexington14]

Agreed. There's no such thing as a Toyota OEM brass tee that was designed to be used in the 100 series.

 

[Timmy65]

Thanks for sharing your video =) OEM plastic T usually last a long time, to me is a maintenance parts that needs to be replaced every 90k/10yrs whichever comes first. Most busted ones are due to lack of maintenance or should I say neglected or oblivious of. The ones on my 04 lasted 189k, pretty much on its last leg when I got the truck at 189k miles. I usually advise my customers to replace them every 90k miles when timing belt replacement due or 10 yrs whichever comes first. Factory copper T used in 80 series works too but been discontinued, also earlier 80 uses copper radiator as well. Please note copper and brass are 2 different metals with different properties, brass contains copper and zinc. Toyota switch to plastic in 100 series and later model. I would stick with OE plastic T to prevent the possibility of galvanic corrosion due to dissimilar metal in the cooling system. So by introducing stainless steel or brass T into your cooling system, you are introducing 2 more different properties than the components of your engine. It may not be the best idea as majority of the 2UZ uses iron and aluminum. Just my 2 cents.

The way I understand galvanic corrosion is two dissimilar metals need to be in contact with each other. The brass tees is surrounded by rubber hoses so no corrosion is going to happen to the brass tees. The Toyota long life coolant mixed with distilled water isn't going to eat up the brass unless the coolant got very old and acidic and then it will attack any metal within the cooling system.

Here's a definition of Galvanic Corrosion that I found doing a Google search:
Galvanic corrosion is a type of electrochemical corrosion that occurs when two metals with different electrical potentials are in contact with each other and exposed to an electrolyte or the atmosphere. The more active metal corrodes faster than it would alone.

Replacing the plastic heater tees at a regular interval is certainly a way you can go. I do still think going with the brass tees is the much smarter choice and they will probably never need to be replaced for the life of the rig provided the coolant in renewed regularly.

 

[Timmy65]

Agreed. There's no such thing as a Toyota OEM brass tee that was designed to be used in the 100 series.

There's nothing stopping people from continuing to use the plastic tees, but brass is far superior to plastic and will most likely never need replacing like the plastic ones do.

 

[ranma21]

The way I under galvanic corrosion is two dissimilar metals need to be in contact with each other. The brass tees is surrounded by rubber hoses so no corrosion is going to happen to the brass tees. The Toyota long life coolant mixed with distilled water isn't going to eat up the brass unless the coolant got very old and acidic and then it will attack any metal within the cooling system.

Here's a definition of Galvanic Corrosion that I found doing a Google search:
Galvanic corrosion is a type of electrochemical corrosion that occurs when two metals with different electrical potentials are in contact with each other and exposed to an electrolyte or the atmosphere. The more active metal corrodes faster than it would alone.

Replacing the plastic heater tees at a regular interval is certainly a way you can go. I do still think going with the brass tees is the much smarter choice and they will probably never need to be replaced for the life of the rig provided the coolant in renewed regularly.

Yes Galvanic Corrosion occurs when two dissimilar metals in contact with each other, in this case the anti freeze/ coolant is the electrolyte in the cooling system that "contact" the metals. In a cooling system, brass and aluminum will corrode when they come into direct contact with each other, where the aluminum acts as the anode and corrodes faster because brass is more cathodic on the galvanic series, meaning it is less likely to corrode in this situation.

Brass T is certainly a stronger material than plastic, no doubt. And you probably may not need to replace the brass T for the life of your rig but your 2UZ aluminium engine components become the sacrificial metal in the process due to Galvanic Corrosion. So you want to avoid introduce different metal properties to your engine if possible. Now how serious is the corrosion? I don't know. This is just purely science and facts. I would rather go with oem plastic T and not chance it. Could Toyota choose plastic for the same reason to minimize the effect?

Fun read

Water Handbook - Cooling Water Corrosion Control | Veolia

Veolia is a leader in developing and delivering effective cooling water corrosion control chemistries. Learn more about our corrosion control programs.

www.watertechnologies.com

 

[Timmy65]

Yes Galvanic Corrosion occurs when two dissimilar metals in contact with each other, in this case the anti freeze/ coolant is the electrolyte in the cooling system that "contact" the metals. In a cooling system, brass and aluminum will corrode when they come into direct contact with each other, where the aluminum acts as the anode and corrodes faster because brass is more cathodic on the galvanic series, meaning it is less likely to corrode in this situation.

Brass T is certainly a stronger material than plastic, no doubt. And you probably may not need to replace the brass T for the life of your rig but your 2UZ aluminium engine components become the sacrificial metal in the process due to Galvanic Corrosion. So you want to avoid introduce different metal properties to your engine if possible. Now how serious is the corrosion? I don't know. This is just purely science and facts. I would rather go with oem plastic T and not chance it. Could Toyota choose plastic for the same reason to minimize the effect?

Fun read

Water Handbook - Cooling Water Corrosion Control | Veolia

Veolia is a leader in developing and delivering effective cooling water corrosion control chemistries. Learn more about our corrosion control programs.

www.watertechnologies.com

Ok, so the massive cast iron engine block has coolant passageways in it. Iron can have a galvanic corrosion reaction with aluminum. So, why did the Toyota Engineers pair an Iron block with aluminum heads? So, with that fact, do you still think those tiny brass tees are going to have an ill-effect on the aluminum components of the engine?

 

[baltistyle]

I’m happy to report that I’ve had perfect success installing Toyota plastic tees into my 06 LX two weeks ago. I replaced the metal tees that began to develop a leak where there was corrosion around the metal…. The metal tees were perhaps 6 years old, fresh coolant and no weird chemicals in the system, just red bug juice.

While there is a great service here in providing alternative parts, there is no argument to be made against the stock parts. The only argument to be made is against poor maintenance practices, that don’t replace parts before they fail.

A new reader should look at all of the threads on these tees, not just this “for sale” thread. It’s one of the most well documented “issues” of this platform.

I keep seeing new parts offered for this platform claiming to be OE/OEM, and then with research see it’s not the case. Some of these vendors are buying bulk from the parts manufacturers and then repackaging as if it was Toyota OEM. That process is very different than having a wholesale account with Toyota and making a couple bucks off the sales portal and distribution that an individual creates. TCCN had a good video this past week about parts and Toyota and some Do’s and Dont’s. If you don’t know TCCN, time to become a fan, he’s THE Toyota Master on YouTube IMHO.

 

[Timmy65]

I’m happy to report that I’ve had perfect success installing Toyota plastic tees into my 06 LX two weeks ago. I replaced the metal tees that began to develop a leak where there was corrosion around the metal…. The metal tees were perhaps 6 years old, fresh coolant and no weird chemicals in the system, just red bug juice.

While there is a great service here in providing alternative parts, there is no argument to be made against the stock parts. The only argument to be made is against poor maintenance practices, that don’t replace parts before they fail.

A new reader should look at all of the threads on these tees, not just this “for sale” thread. It’s one of the most well documented “issues” of this platform.

I keep seeing new parts offered for this platform claiming to be OE/OEM, and then with research see it’s not the case. Some of these vendors are buying bulk from the parts manufacturers and then repackaging as if it was Toyota OEM. That process is very different than having a wholesale account with Toyota and making a couple bucks off the sales portal and distribution that an individual creates. TCCN had a good video this past week about parts and Toyota and some Do’s and Dont’s. If you don’t know TCCN, time to become a fan, he’s THE Toyota Master on YouTube IMHO.

Yep, that's 100% what I'm all about, selling stuff. It's why I spend so much time researching, filming, and editing projects. It's all about making sales. Cruiser Patch is a start-up land cruiser parts supplier. I met him at one on my Timmy the Toolman parties in Atlanta, Georgia. I live in California, but my buddy Jordan lives in Georgia. My buddy Patch sells kits like the heater hose kit which makes it convenient for the consumer. He gets all of his parts from Japan.

I see you're a fan boy of The Car Care Nut. Yep, that guy has a huge following, and must make a crapload of money from his channel. He shares some pretty good information, but he sure has a plethora of click-bait video thumbnails. The guy is super knowledgeable, no doubt. What him and I do are totally different. I make VERY detailed DIY videos that even a beginner could follow. I also document very involved jobs like engine replacements that a guy like TCCN isn't going to do because it's way too much work to film and edit.

TCCN nut is good for general Toyota/Lexus knowledge. If someone has a specific job they need to perform, especially an involved one like a timing belt job, and TCCN has a video on the subject, and so do I, I guarantee my video is going to blow his out of the water in the detail and information that is shared.

People have choices, and opinions. There's nobody forcing anyone to purchase brass tees or to purchase from a certain parts supplier. Just like Cruiser Patch does for his customers, I provide people the part numbers as a service in my video descriptions so people can use them to search for a better price from their preferred Toyota/Lexus parts seller.

TCCN with the following he has and the massive amount of views his videos gets makes him a ton of money. My channel on the other hand doesn't make that much revenue and I know how much time I invest into my channel. If I was doing it for the money, I would have quit shortly after starting my channel with my buddy Sean 9 years ago. I do it first and foremost to help people do their own automotive work so they can save money and become self-sufficient. The money from YouTube add revenue and affiliate marketing is secondary. Even your golden boy TCCN partakes in affiliate marketing.

So Dude, don't profess you know something about me, when you clearly don't. I found your "For Sale Thread" comment very insulting.

 

[rexington14]

It's fine to use (or suggest) brass tees if that's the route you want to go. But it is wrong to claim or associate that brass tees are in any way "OEM" in the 100 series - It's simply not the case.

 

[BullElk]

My $.02 with likely a bit of change in return but….

Less than $30 and 30 minutes once every 10+ years for OEM plastic Ts ain’t the biggest deal in the world. And knowing 100% they fit perfectly and don’t leak.

 

[baltistyle]

Yep, that's 100% what I'm all about, selling stuff. It's why I spend so much time researching, filming, and editing projects. It's all about making sales. Cruiser Patch is a start-up land cruiser parts supplier. I met him at one on my Timmy the Toolman parties in Atlanta, Georgia. I live in California, but my buddy Jordan lives in Georgia. My buddy Patch sells kits like the heater hose kit which makes it convenient for the consumer. He gets all of his parts from Japan.

I see you're a fan boy of The Car Care Nut. Yep, that guy has a huge following, and must make a crapload of money from his channel. He shares some pretty good information, but he sure has a plethora of click-bait video thumbnails. The guy is super knowledgeable, no doubt. What him and I do are totally different. I make VERY detailed DIY videos that even a beginner could follow. I also document very involved jobs like engine replacements that a guy like TCCN isn't going to do because it's way too much work to film and edit.

TCCN nut is good for general Toyota/Lexus knowledge. If someone has a specific job they need to perform, especially an involved one like a timing belt job, and TCCN has a video on the subject, and so do I, I guarantee my video is going to blow his out of the water in the detail and information that is shared.

People have choices, and opionions. There's nobody forcing anyone to purchase brass tees or to purchase from a certain parts supplier. Just like Cruiser Patch does for his customers, I provide people the part numbers as a service in my video descriptions so people can use them to search for a better price from their preferred Toyota/Lexus parts seller.

TCCN with the following he has and the massive amount of views his videos gets makes him a ton of money. My channel on the other hand doesn't make that much revenue and I know how much time I invest into my channel. If I was doing it for the money, I would have quit shortly after starting my channel with my buddy Sean 9 years ago. I do it first and foremost to help people do their own automotive work so they can save money and become self-sufficient. The money from YouTube add revenue and affiliate marketing is secondary. Even your golden boy TCCN partakes in affiliate marketing.

So Dude, don't profess you know something about me, when you clearly don't. I found your "For Sale Thread" comment very insulting.

Sorry buddy, but I’m not a fan boy of anyone, at all. I’m just referring to someone I watch on YouTube that does a good job on explaining Toyota’s and recently as I mentioned, specifically talked about OEM versus aftermarket parts, which I thought was very pertinent to this thread . I do not follow his videos for learning how to do repairs, nor do I ever click on any channels recommendations. I am subscribed to exactly 0 YouTube channels..

You are right. I definitely do not know who you are or any of the videos you make. What I do know is that I read a thread that has been repeated 1 million different times and seemed to point towards purchasing a non stock part from a certain person.

I’m sorry that you felt insulted, but I didn’t say anything negative about you nor the vendor. A new thread about an old subject, referencing a vendor comes off as a for sale thread anyway you look at it. That vendor does a great job already and those tees are already referenced in heater tee conversations.

Thank you for explaining your business and model, but this was really just about my heater tees, the corrosion, plastic oem parts, and a reference to a critique of parts supplies by a Toyota professional.

 

[Timmy65]

It's fine to use (or suggest) brass tees if that's the route you want to go. But it is wrong to claim or associate that brass tees are in any way "OEM" in the 100 series - It's simply not the case.

Ok, fair enough. Brass tees weren't Original Equipment for 100 Series. It's a brass version sold by Toyota/Lexus that has the same dimensions as the OEM plastic tees. It looks like the brass tees sold by Cruiser Patch are OEM for a 60 Series.

 

[BullElk]

Ok, fair enough. Brass tees weren't Original Equipment for 100 Series. It's a brass version sold by Toyota/Lexus that has the same dimensions as the OEM plastic tees. It looks like the brass tees sold by Cruiser Patch are OEM for a 60 Series.

Tim, you say they are literally the exact same mm dimensions as plastic OEM?

 

[Timmy65]

Tim, you say they are literally the exact same mm dimensions as plastic OEM?

I'm not sure they are 100% the exact dimensions of the plastic tees. I am assuming the fitting diameters are the same or Cruiser Patch wouldn't recommend them as a replacement. If the diameter of the fittings are the same, the tee is going to be pretty much the same as the plastic tees. Maybe the 3 fittings that make up the tee could be a little longer or shorter. But, I'll send Patch a message and find out.

 

[Zuberg]

Timmy - really appreciate the time and effort put into making these how to videos. As for parts, I think it's nice to have options when caring for our rigs and enjoy the debates that ensue. Since I'm stuck on work calls I went into my parts stash and grabbed my caliper....

This is comparing parts 87248-60460 (plastic Tee) vs 87248-95400 (Brass tee - denso/made in Japan).

See picture with measurements below. I rounded up but dimensions are within such tight tolerance and identical across parts that it's not worth posting all measurements. For functional purposes they're identical, same width height, length of flare, you name it.

Keep all the great content coming!