What Is the Difference Between Dexter 168255UC and 168255TB Grease Seals?

Published 10/27/2026

Question:

I have been using a Dexter 1.68 replacement seal kit K71-G01-84 81323. On the seal it is labeled 168255UC. I do not find this on your website. Is there an equivalent seal now offered by Dexter. The closest I find is a 168255TB. What is the difference between the UC and the TB, and can the TB be substituted for the UC seal?

asked by: Steve W

Expert Reply:

Hey Steve, thanks for reaching out! The Dexter 168255UC seal you've been using is a triple-lip seal with a rubber-coated outer diameter, while the # 168255TB is a double-lip seal with a tension spring. Both have the same dimensions, with a 1.687" inner diameter and approximately 2.56" outer diameter.

The good news is that Dexter lists the newer K71-802-00 as the replacement for your original # K71-G01-84 seal kit. The # 168255TB is also associated with this newer part number, so it's a viable replacement for your original seal in a compatible greased hub.

What kind of trailer are you servicing?

expert reply by: Jesse M