Fit: This is a direct, bolt-in replacement for OE part #STL010, engineered to perfectly fit all 2014-Up GM 6L80/90 and 2016-Up 8L80/90E transmissions, including the 10L90.
Includes Crucial Bypass Gasket and Transmission Cooler Barbell: Kit contains a high-quality bypass gasket (replaces OE# 66219/15251488), ensuring a perfect seal for a wide range of GM vehicles including Silverado, Sierra, Tahoe, Cadillac, and more.
Superior Durability & Heat Resistance: Precision manufactured from CNC-machined 304 stainless steel and high-quality rubber seals, offering exceptional strength, corrosion resistance, and long-term reliability under extreme temperatures.
No Modifications Required: A true plug-and-play upgrade. Directly replaces the factory thermostat internals in about 20 minutes with basic tools—no cutting or custom fabrication needed.
Package Included - 1*Transmission Cooler Barbell, 3* Large O-rings,1* Small O-rings,1*Small Metal Ball,1*Bushing,1*Piston,1*Coil Spring.