2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8
-Liquid error (snippets/product-snippet line 250): Computation results in '-Infinity'%

2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8" LINE - TRANSMISSION FLUID THERMAL BYPASS VALVE

$141.00 In Stock Item not available
45478419038451
PART NUMBER: 125071000 GTIN: 840171223149

OEM P/N REFERENCE: GM 13561467

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

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  • Description
  • Compatible Vehicles
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Transmission Fluid Thermal Bypass Valve

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.

Transmission Fluid Thermal Bypass Valve

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.

Customer Reviews

Based on 51 reviews
98%
(50)
2%
(1)
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s
steve w.
Great product

Does everything they say , fluid temps are way lower worth every penny.

J
Josh L.
It worked

Was getting transmission hot engine idle warnings, temps at 240 or more not uncommon. I installed this and now 160 is about as high as it goes.
Works for me!

n
nick a.
Cool

After my transmission was replaced I installed this bypass. Before my transmission blew it would go over 240°C. Now never over 215 on a 35°C going up steep hills fully loaded

J
Jesus A.
2023 Silverado 10speed in AZ 🥵

Wow can’t say enough how great this product is. Had this installed at the same time I did full service on the transmission and noticed the difference in temps right away. Trans temp went from 198-205 normal driving to 158-170

K
Kevin
2019 SILVERADO LD

The PPE thermal bypass worked great on my silverado. Trans temp in 70 degree weather rarely gets above 150 degrees.

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