


🛠️ Keep your GM running cooler, longer — the genuine way!
The GM Genuine Parts 15779543 Automatic Transmission Auxiliary Fluid Cooler Inlet Line is a precision-engineered, metal transmission cooling tube designed for GM vehicles. It offers an exact OEM fit, ensuring easy installation and reliable performance. Backed by a 24-month unlimited mile warranty, this part maintains optimal transmission temperatures to protect your drivetrain and extend vehicle life.





| ASIN | B0049ON7PI |
| Best Sellers Rank | #826,061 in Automotive ( See Top 100 in Automotive ) #430 in Automotive Replacement Transmission Cooling Lines |
| Brand | GM GENUINE PARTS |
| Brand Name | GM GENUINE PARTS |
| Container Type | Tube |
| Customer Reviews | 4.6 out of 5 stars 224 Reviews |
| Global Trade Identification Number | 00707773767726 |
| Included Components | Cooler Inlet Line |
| Item Form | Liquid |
| Item Type Name | Cooler Inlet Line |
| Item Weight | 0.6 Pounds |
| Liquid Volume | 0.12 Liters |
| Manufacturer | ACDelco |
| Material | Metal |
| Package Information | Tube |
| UPC | 707773767726 |
| Unit Count | 1.0 Count |
| Warranty Description | 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
C**R
Exact fit 2009 Silverado
Fit as expected
A**K
Perfect fit.
Line arrived in perfect shape with all genuine GM labels attached. Fit like a glove. Made replacement very easy. NOTE: This line is for auxiliary cooler to top of radiator on 2011 Silverado 1500. It does NOT run to the transmission.
L**A
Do the other lines now too!
You don't want to have to take your truck apart again anytime soon, I promise so do yourself a favor and do the other lines now too.
M**S
Blew
Rubber part of line already blew out,very disappointed
T**N
Great
Exactly what i needed genuine high quality part
A**P
car transmission line
worked good and no leaks
P**O
Fits like GM OEM
Purchased for my 2010 Chevy Silverado Z71. Bends are Slightly off, but over all fitted worked out ok. Good Price. Highly Recommended.
J**.
Fits 2010 GMC Sierra SLE 5.3 Flex Fuel W/ Towing Package
Fits 2010 GMC Sierra SLE 5.3 Flex Fuel W/ Towing Package You’ll only lose about 6 ounces of transmission fluid, but it’s a little tricky to get to.. take off the skid plate and trim up top, don’t lose the clips.
Trustpilot
1 month ago
2 days ago