So I had the opportunity, or misfortune to replace the heater core seals on a TR7 yesterday.
Reusing the originals is not an option and the replacements are very poor.
What I found was a Volvo radiator sensor seal that fits perfectly, seals better that the original and is of a better quality.
The Volvo part # is 1274048 or 101248 from IPD.
The Volvo seals are readily available and cheap at less than $2.00
Hope that helps someone.
Cheers
Fred
Thanks, Fred!
Hey Fred Merry Christmas to you .