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🚗 Upgrade your transmission game with precision and style!
The ICT Billet Transmission Cooler Line Adapter Plate (551121-6AN) is a high-quality, aerospace-grade billet aluminum adapter designed for 6L80E, 6L90E, and 8L90E transmissions. Featuring universal 6AN fittings compatible with 3/8" hoses, it includes a factory gasket and mounting bolt for easy installation, enabling custom braided hose setups that enhance transmission cooling efficiency and reliability.















| Manufacturer | ICT Billet |
| Brand | ICT Billet |
| Item Weight | 3.84 ounces |
| Package Dimensions | 6.06 x 3.54 x 0.91 inches |
| Item model number | 551121-6AN |
| Manufacturer Part Number | 551121-6AN |
D**T
Keep cooler lines away from heat like the heat from long tube heat wrap also good idea
Fit perfect made my LT swap clean and allows me to rout my cooler lines to my separate cooler without incorporating the possibility of coolant and oil like factory
N**0
Made in the USA
I had originally bought a Chinese made one cheaper, but bought this one instead since it’s made here in the USA. Support american made industry. 🇺🇸
R**N
Nice quality
Works great, have 2 in use right now
A**R
Perfect fit.
Used this to replace the thermostat valve on my 6l80e
D**H
Excellent
A+
C**Y
Fits great no leaks
Works perfectly on my 2012 Silverado 6l80e for trans cooler upgrade and no leaks holds tight
C**S
I would buy again
Worth the money. No leaks, easy to bolt on.
S**S
It works
Light weight and comes with everything to install. Fits 8l90e
Trustpilot
2 months ago
1 week ago