Good Maintenance Practices:
- The locking ring and seal should be replaced when replacing a fuel pump.
- Refer to your Vehicle Owner's manual for additional vehicle maintenance practices.

GM Part #55486852
ACDelco Part #55486852
GM Genuine Parts Fuel Tank Sending Unit O-Rings are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These O-rings help seal out contaminants, and help protect your vehicle's fuel tank sending unit. 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
24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)
Please visit our warranty page on Gmparts.com for full warranty details.
No. A sealer is not needed for a leak free seal.