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 #42623493
ACDelco Part #42623493
ACDelco GM Original Equipment Fuel Tank Sending Unit O-Rings are GM-recommended replacements for your vehicle's original components. These O-rings help seal out contaminants, and help protect your vehicle's fuel tank sending unit. These original equipment O-rings have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
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.