Tis water pump impeller is supplied with two paper gaskets and one o-ring (click the image to view these):
- irregular gasket for Type A water pump
- round gasket for Type B water pump
- o-ring (diameter 58mm) for Type C (triangular pump)
Part reference: STM8076 - this supersedes impellers STM8061 & STM6161
Please note that the o-ring is not suitable for some newer engines, which have a round faceplate (stamped STM7698) with an o-ring (55mm diameter) behind - please contact us for availability.