When rebuilding rotary engines, the oil seals require the rubber o-ring seals to be replaced. The original o-rings are prohibitavely expensive. We sourced excellent quality Viton o-rings as a substitute. Viton is an excellent seal for oil and temperatures and is acknowledged as a perfect solution for all rebuilds whether stock or performance. Sold in sets of four inner or four outer o-rings. One set of each will rebuild any 2-rotor oil seal set.

* OE fit

* Quality Viton material

* Excellent value