This popular auxiliary shaft & front crankshaft seal for the Cosworth YB engine is manufactured by renowned seal specialist Victor Reinz. This company has an illustrious history dating back to more than a hundred years ago. Today, Victor Reinz produce automotive OEM seals that offer incredible performance and reliability.
The material for this seal is FPM, which is a fluoroelastomer that has exceptional resistance to chemicals and temperatures. FPM has a low compression set combined with remarkable ageing features. It is resistant to silicone and mineral oils and greases, petrol and diesel fuels, and chlorinated hydrocarbons, even when under a high vacuum.
The seal also includes a metal energiser garter spring that helps the sealing lip of the seal maintain a consistent and even pressure on the running surface of the shaft.
Further details of this seal can be viewed on Victor Reinz’s online catalogue.
We also stock the Victor Reinz rear crankshaft seal for the YB engine.
- Victor Reinz part number = 81-51109-30
- Outside diameter = 56 mm
- Inside diameter = 42 mm
- Width = 7 mm