Part number 99657226303Source-mentioned candidate. Verify fitment and availability independently.
Cited source accounts
sealant a bit at a time. Once cleaned up I actually reused it as it was in fine condition. I used some Butyl rope to reseal. I believe the part number for the foam seal is 99657226303 - gasket. Dave
Repair the heater blend-door foam
This is a source reference. Confirm exact model applicability in the original material.