Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower
Silverado/Sierra 1500 w/ 8L90 Transmission - Transmission Fluid Thermal Bypass Valve ppepower

2019-2023 Silverado/Sierra 1500 w/ 6L80 or 8L90 Transmission and 1/2" Line - Transmission Fluid Thermal Bypass Valve

$138.00 In Stock Sold out
45579140071667
PART NUMBER: 125070000 GTIN: 840171221077

Features:

  • Maximizes fluid flow to and from the transmission cooler
  • Billet aluminum construction
  • Direct fit with OEM 8L90 8-speed transmission and fluid lines
  • Service plug with Neodymium magnet and O-ring seal
FREE economy shipping on orders placed on our website over $100
1 YEAR LIMITED WARRANTY
FREE tech support on all PPE parts
  • Description
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PPE Transmission Fluid Thermal Bypass Valve - Billet Aluminum

Add another measure of protection and increase fluid flow to the transmission cooler. Increase cooling capacity with this easy-to-install billet aluminum PPE Transmission Fluid Thermal Bypass Valve for the GM 8L90 8-speed transmission.

The OEM part has restrictive internal passages. When the OEM valve fails in the closed position, transmission fluid doesn’t reach your cooler. This can be caused by mechanical failure or debris. The result of stock valve failure can cause the transmission to dangerously overheat. Without properly cooled transmission fluid, the demands of towing and rigorous stop-and-go driving conditions shorten the life of transmission components. The PPE Bypass Valve eliminates the extremely restrictive mechanical factory valve, maximizing fluid flow to and from the transmission cooler.

For further protection, a Neodymium magnet-equipped service plug with an O-ring seal has been added. The removable plug traps ferrous debris and can be accessed to remove particles from the system. The factory bypass valve does not have this feature.

GM P/N 84443930

Customer Reviews

Based on 10 reviews
90%
(9)
10%
(1)
0%
(0)
0%
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0%
(0)
A
Alexander G.
Bypass valve

Bypass valve is a very easy installation, the product is top quality and packaging is great with instructions. Transmission running way cooler thanks to this product. Definitely recommend and will be purchasing other PPE products

A
Alex B.
Drops your trans temp and allows cooler fluid to enter

I’d recommend this to anyone who’s got a 6L80 I’ve put about a 1000 miles on it since I installed it dropped my temps by 20 or so degrees of your still running hot after that get a external cooler

A
Austin M.
Good product

Installed this a few days ago on my 17 chevy with the 8l90. I live up in the cold and on a 15-20 degree day i was running about 99-105 degrees and on a 45-50 degree day it was 110-125. Does the job i needed it too and being in a cold climate it dosent keep the transmission to cold for my liking

M
Mason P.
Easy install

Took about 5 minutes to install you need a 10mm for the plate that holds the trans lines in and the side bolt is a 13mm very simple and easy don't forget to put the old gasket on the new one mine just stayed in place when I pulled mine off so I just stuck the new one up there transmission Temps are in a great range now

J
Jason W.
Great product

No offices with figment, temps are running lower now. Only issue I had was dealership pinched the rubber washer on the side bolt. Didn’t void my warranty. I had purchased part and the Chevy dealer installed it when they put my new transmission in. 2017 High Country 1500 4x4. 98k miles

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