Good Maintenance Practices:
- Keep oil and filter changed at required intervals
- Keep cooler line clamps tight to prevent leaks
- Keep cooler secure to prevent contact wear damage

GM Part #55566784
ACDelco Part #55566784
GM Genuine Parts Engine Oil Coolers are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These coolers are heat exchangers. They transfer heat to and from your vehicle's engine oil to the engine coolant or ambient air. This helps keep the engine oil temperature within the designed operating range, which helps optimize engine efficiency and longevity. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Limited Lifetime Warranty for Parts (plus Labor if installed by a GM dealer)
Please visit our warranty page on Gmparts.com for full warranty details.
Yes. Overheated oil loses its viscosity and may cause failure in internal engine components.
Yes. Make sure to use a soft brush, or low pressure water, to help prevent damage to the cooler core fins.