Fuel pump O ring tank seal.
 

Does anyone know the part number for this fuel pump to tank seal i broke mine removing the pump to check for a clogged sock.

2000 Bonneville L67 shows this, with the VIN break point being Y4120924...

Use the H-style seal, P/N 25712454, for vehicles built AFTER and INCLUDING the VIN breakpoints as shown.

For vehicles listed below that have an existing O-ring style seal installed, the O-ring style seal has been cancelled and a new service seal, P/N 25721332, is now available as the replacement part.

I think I might have one if you need one. I never replaced the one I had when I did the sender. Let me know if y9ou still need it and I'll take a look.

pm sent kobrak

Sorry bud, my Email addy has changed, should be up to date now!