RX - 1st Gen (1999-2003) Discussion topics related to the 1999 -2003 RX300 models

DIY Transmission Tube -Assy,Oil Cooler.

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Old 04-05-18, 01:11 PM
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sychu
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It seems that for metal pipes only option is to order "Genuine OEM", but what about rubber hoses? What pressure and temperature it should handle?
Is it enough to handle 10 bar (1 MPa) and temperatures range -35C ... 125C (-31F ...275F) ?

https://ww2.gates.com/europe/brochur...cation_id=5165
Old 04-05-18, 01:46 PM
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fastnoypi
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Originally Posted by sychu
It seems that for metal pipes only option is to order "Genuine OEM", but what about rubber hoses? What pressure and temperature it should handle?
Is it enough to handle 10 bar (1 MPa) and temperatures range -35C ... 125C (-31F ...275F) ?

https://ww2.gates.com/europe/brochure.cfm?brochure=2484&location_id=5165
This is what I used
Amazon Amazon

edit: double check the size of the lines...the link may not have the right size. It could be 3/8..its been a while since i replaced. Either way, transmission cooler hose is what you want.

Last edited by fastnoypi; 04-05-18 at 03:00 PM.
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Old 04-05-18, 03:15 PM
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sychu
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Originally Posted by fastnoypi
This is what I used https://www.amazon.com/Gates-27056-T.../dp/B000CRBQ9U

edit: double check the size of the lines...the link may not have the right size. It could be 3/8..its been a while since i replaced. Either way, transmission cooler hose is what you want.
Thanks!

I can't find store with "Gates Transmission Cooler Hose" near by, but as You suggest I will use hoses dedicated for transmission cooler.
Old 04-07-18, 07:05 PM
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Drcoffee
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Originally Posted by sychu
It seems that for metal pipes only option is to order "Genuine OEM", but what about rubber hoses? What pressure and temperature it should handle?
Is it enough to handle 10 bar (1 MPa) and temperatures range -35C ... 125C (-31F ...275F) ?

https://ww2.gates.com/europe/brochure.cfm?brochure=2484&location_id=5165

the pressure is very low in these hoses. It flows thru the coolers and then dumps into the trans pan. But you must use transmission or PS hose which is compatible with ATF. I replaced my oem fender mounted cooler with. B&M cooler mounted to the AC condenser. Saw temps drop from 200+ to 170*F on the hottest days of 95*F Chicago summer. The oem cooler is functionally USELESS in my most humble opinion. Never mind the restrictive fluid lines Lexus designed to move the fluid back and forth.

I bought 50' of Gated 3/8" hose on ebay for $35. Every now and then you get lucky.

Last edited by Drcoffee; 04-07-18 at 07:08 PM.
Old 04-07-18, 07:10 PM
  #20  
Drcoffee
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Originally Posted by sychu
Thanks!

I can't find store with "Gates Transmission Cooler Hose" near by, but as You suggest I will use hoses dedicated for transmission cooler.
O'reillys sells Gates but they are most certainly overpriced.
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