manual transmission radiator for automatic transmission - Drive Accord Honda Forums
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post #1 of 25 Old 03-18-2017, 10:42 PM Thread Starter
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manual transmission radiator for automatic transmission

hi guys, i have an extra auto trans car and wanting to get a new radiator for it. i found lots of better than stock radiator for the manual version, my question is can i use the manual version radiator for the automatic trans car. i understand automatic radiator also have an transmission oil cooler attatched at the bottom of it and manual version doesn't. so can i use the manual radiator and add an external oil cooler unit to make it work? i think it would but not so sure, if anyone has expericence doing it let me know what u think and what work and dont'. thanks in advance!

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post #2 of 25 Old 03-19-2017, 06:09 AM
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the auto trans needs the cooling and temp regulation. Plus you can get a radiator for like $99 that will work just fine from most parts stores.

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post #3 of 25 Old 03-19-2017, 06:16 AM
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Go to OEM Honda Parts at up to 50% off MSRP | Welcome to the Honda Parts Network. and look up then compare the part numbers. If they are the same, then use it.
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post #4 of 25 Old 03-19-2017, 06:45 AM
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what do you mean by "better than stock"? but yeah, an external oil cooler for the transmission with a manual radiator should work fine.

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post #5 of 25 Old 03-19-2017, 08:24 AM
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Go to OEM Honda Parts at up to 50% off MSRP | Welcome to the Honda Parts Network. and look up then compare the part numbers. If they are the same, then use it.
@t-rd

Thanks for the link ! This place is right by the work location. I can use pick-up option.

For folks in the DuPage area of Chicagoland, this is Honda of Lisle.

They must really be new since I never found them in a google search.

You made my day.

One thing I found very interesting is they sell the connectors and pins with pigtails and splice joints. You know how hard it is to find those new.


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post #6 of 25 Old 03-19-2017, 09:06 AM
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Originally Posted by kenshin View Post
i understand automatic radiator also have an transmission oil cooler attatched at the bottom of it and manual version doesn't.
Not sure what year, model or motor you have but my 7th gen AV6 does not have a transmission oil cooler attached or built in to the radiator. To my knowledge, none of the 7th gens do. It has a power steering cooler which attaches in front of the A/C condenser. The 7th gens use a heat exchanger for the auto's which is attached to the transmission itself. So why the radiator would be different for the manual/auto is beyond me. I ended up adding my own aftermarket transmission cooler because they don't come with one.

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post #7 of 25 Old 03-19-2017, 09:16 AM
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my rad
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post #8 of 25 Old 03-19-2017, 09:28 AM
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^^

Where the heck do you live?! I get all my OEM parts from honda of Lisle, picked up. Trans fluid is less than $6 a bottle PM me please.

We bought our first 1990 Accord back in 1990 when we immigrated to America. They have been around for almost 30 years.

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post #9 of 25 Old 03-19-2017, 09:50 AM
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^^

Where the heck do you live?! I get all my OEM parts from honda of Lisle, picked up. Trans fluid is less than $6 a bottle PM me please.

We bought our first 1990 Accord back in 1990 when we immigrated to America. They have been around for almost 30 years.
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post #10 of 25 Old 03-19-2017, 11:30 AM
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my rad
That's an AC condenser, genius.
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post #11 of 25 Old 03-19-2017, 12:40 PM
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The 7th generation Accords with an automatic transmission do have the transmission cooler built in to the radiator. There is no reason you could not use a manual transmission radiator and transmission cooler with themostat. If it is a cost thing, I doubt it ends up cheaper getting a manual radiator and a additional transmission cooler.

One reason to do it would be the issues with the transmission coolers failing inside the radiator and mixing transmission fluid with radiator fluid. That has been a huge issue on the vehicles in locals that use salt on the roads.

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post #12 of 25 Old 03-21-2017, 12:56 AM Thread Starter
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The 7th generation Accords with an automatic transmission do have the transmission cooler built in to the radiator. There is no reason you could not use a manual transmission radiator and transmission cooler with themostat. If it is a cost thing, I doubt it ends up cheaper getting a manual radiator and a additional transmission cooler.

One reason to do it would be the issues with the transmission coolers failing inside the radiator and mixing transmission fluid with radiator fluid. That has been a huge issue on the vehicles in locals that use salt on the roads.
i have a 06 manual, my other extra car is an automatic celica, i was just wanting to upgrade the radiator for it and the manual version radiator has tons of options with all aluminum rad, that's the reason why i wanted to use the manual rad. i guess i just need to add the trans oil cooler unit to it. do i need to add a temp sensor for the oil cooler?

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what do you mean by "better than stock"? but yeah, an external oil cooler for the transmission with a manual radiator should work fine.
meaning all aluminum build , more rows than stock and higher capacity, it would cool the engine more effectively than stock one. not that stock rad is not good enough but when it's time to replace, y not replace it with a better one.

Last edited by namegoeshere; 03-21-2017 at 04:06 AM. Reason: le merge
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post #13 of 25 Old 03-21-2017, 02:12 AM
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You would need something like this with a fan and a thermostat.


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post #14 of 25 Old 03-21-2017, 03:53 AM
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Originally Posted by kenshin View Post
i have a 06 manual, my other extra car is an automatic celica, i was just wanting to upgrade the radiator for it and the manual version radiator has tons of options with all aluminum rad, that's the reason why i wanted to use the manual rad. i guess i just need to add the trans oil cooler unit to it. do i need to add a temp sensor for the oil cooler?
Save your money. You aren't going to see any performance difference other than your wallet being lighter a few hundred dollars.

You're better off staying with the factory radiator that circulates coolant and the transmission fluid through the radiator. If you need an explanation as to why, feel free to ask.


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post #15 of 25 Old 03-21-2017, 04:34 AM
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I cannot speak for the I4 engine. It would be helpful if you state the engine type here.

There is NO transmission cooler built-in integrated into the radiator for the 7th gen V6 Accord. There is a warmer, no cooler. Cooler needs to be added. You do not need to add a trans temp sensor unless you are hardcore racing your auto needing to monitor the temp. But if you are hardcore monitoring the trans temp then you are pushing your trans or driving too hard.

The heat exchanger design is better in my opinion, coupled with an external cooler, because I have seen reports of the o-ring in the fitting of the radiator integrated trans cooler failing on the MDX. When that happens, trans fluid mixes in with the coolant and flows into the cooling jackets of the engine.


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