Staff Answer
Aug 10, 2026 - 11:15 AM
The 13-025X is made from EPDM Material which is what almost all automotive weatherstripping is made from. It is a high quality synthetic rubber with excellent resistance to sun, UV, etc.
The 13-026X is made from latex. It is more expensive and has its own pros/cons but in particular, latex is what GM originally used on this particular part which is unique.
Both are high quality options that will give you many years of service. In my option, the latex option is for the purist or on a Concours level restoration.
The 13-026X is made from latex. It is more expensive and has its own pros/cons but in particular, latex is what GM originally used on this particular part which is unique.
Both are high quality options that will give you many years of service. In my option, the latex option is for the purist or on a Concours level restoration.
