Sealing ring, Viton, 22.8 x 8 x 2.8 mm, Becker, U Series, U4.20 Part# 300092

This is a small ring made of Viton. Viton is a special rubber material that is famous for one thing: it does not break down.

It handles heat better than regular rubber. It handles oil better. It handles chemicals better .

The size of this ring is 22.8 mm long, 8 mm wide, and 2.8 mm thick . Think of it like a custom-shaped gasket that fits into a specific groove inside your pump.This sealing ring sits between two parts and stops air and oil from leaking out. Because it is made of Viton, it keeps sealing even when things get hot .

This sealing ring is made for one specific pump model: the Becker U4.20 .

If you have a U4.20 pump, this is the right ring for you. It is a direct replacement. No cutting. No trimming. No guessing.

the Seal & Gasket Kit for U4.20 pumps (Part #54900040300) . That kit includes many seals, o-rings, and gaskets for a full rebuild .

Second, it is in the Major Overhaul Kit for U4.20 pumps (Part #33805600000) . That kit is for a complete pump rebuild and includes vanes, bearings, filters, and all the seals