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OPT: Blog

Transmission information, recommendations and more

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  • OPT: Blog
  • » Archives
Sep
20

Do I need a thermal bypass?

Fall is a great time to consider installing a transmission cooler in your vehicle. For many people, the busyness of summer travel has settled down, the kids are back in school, and there’s finally time to work on vehicle projects before the snow and freezing temperatures hit.

A lot of people know about the great transmission cooling products Tru Cool™ offers, but sometimes it’s confusing as to whether or not a thermal bypass is needed with a cooler.

Our most popular transmission cooler from Tru-Cool™, part number LNG-47391, has a sister cooler under part number LNG-4739. The only difference between the two? The 4739 comes with a thermal bypass, while the 47391 does not.

So what is a thermal bypass?

The thermal bypass is a small added valve that goes in the transmission line.  When the transmission is cold, the thermal bypass will “bypass” the cooler so it can bring the transmission up to operating temperature more quickly.

Do I need a thermal bypass?

A bypass is not something that is typically needed unless you live in a fairly cold climate; for example, a place where temperatures in the winter are regularly below 32°F.

I already own a cooler but it doesn’t have a bypass.  Can I buy the bypass separately and add it on?

Yes.  The bypass works very well with other coolers, such as the Tru Cool™ 49211 cooler.  So if you already have a cooler you like, adding the bypass on is definitely okay. 

Where can I buy a thermal bypass?

We sell the bypass individually under part number LNG-4739P6. 

If you would like to purchase a cooler with a bypass, we sell that package under part number LNG-4739.

LNG-4739

If you do not need the thermal bypass but do need a great transmission cooler, and have the available space, we have that product under part number LNG-47391.

LNG-47391

For more information about transmission or engine oil coolers, please feel free to contact us at sales@oregonperformancetransmission.com. 

 

  • Posted on September 20th, 2017
  • Posted by Brian
  • No Comment »
  • Filed under: 4739, 47391, FAQ's, thermal bypass, Tru-Cool
  • Tags: bypass, cold weather, cooler, cooling, DIY project, FAQ, freezing, performance, transmission, Tru-Cool
Mar
26

Two additional ways to save money

Did you know that Oregon is one of the last few states in the U.S. without a sales tax?  This means that when you shop with us, you pay zero sales tax!  Depending on the size of your order, this could mean a significant savings.

image-3 no tax in oregon

In addition, Oregon Performance Transmission is now offering free U.S. shipping on all orders over $25.00.

banner-c free shipping

Free shipping includes all 50 states and all US territories including Guam, Saipan, and Puerto Rico, US Virgin Islands and all military APO’s. 

Free shipping does not necessarily mean slow shipping. Whenever possible we ship via USPS First Class mail for all items weighing 0-13 ounces.  For smaller items that weigh more than 13 ounces, we ship via USPS Priority Mail (2-3 day delivery).

We ship larger, heavier items such as rebuild kits and torque converters, via FedEx Ground. FedEx Ground estimates between 1-5 business days (excluding Sunday) for delivery, depending upon location and distance from Oregon.

Shipping time depends upon when the order is received. Most items are shipped within 24 hours.  Items purchased after 10:00 a.m. PST may not be shipped until the following day.  Some larger item orders received on Friday after 10:00 a.m. PST may not be shipped until the following Monday.

For additional questions regarding shipping or any other inquiries, please contact Oregon Performance Transmission directly at salesdesk@optsales.com.

 

  • Posted on March 26th, 2016
  • Posted by Brian
  • No Comment »
  • Filed under: FAQ's, Shipping
  • Tags: delivery time, FAQ, FedEx, free shipping, Oregon, sales tax, Shipping, USPS

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