GM 20987030 Transmission Fluid Cooler Line - Upper Auxiliary Cooler Hose

About This Product

GM vehicle owners and mechanics, this GM Original Equipment transmission cooler line (part number 20987030) is the exact replacement you need for your vehicle's upper auxiliary fluid cooler connection. As a genuine GM-recommended replacement part, it delivers the same performance, durability, and service life you expect from factory components. The fit is perfect since it's manufactured to GM's original specifications for form, fit, and function - no modifications or struggling to make it work. Transmission cooler lines are crucial for keeping your automatic transmission running at the proper temperature, and worn or leaking lines can lead to serious transmission damage over time. The quality is immediately apparent - proper construction, correct fittings, and materials that match the original equipment. Installation is straightforward if you're familiar with automotive repair, though having the service manual for your specific vehicle always helps. Your transmission will maintain proper cooling efficiency with this quality replacement line that ensures reliable fluid flow between the transmission and cooler. It's one of those maintenance items that prevents much more expensive repairs down the road by keeping your transmission properly cooled and functioning optimally. Trust GM Original Equipment for the reliability and perfect fit that keeps your vehicle running as intended.