It you need the fitting service see item number 134769381087 .This high-quality mechanical seal is designed for TRIUMPH Water Pumps. It is manufactured with precision and made of durable metal material. The seal's mounting style is Press Fit and its diameter measures 30mm/35mm. The product is an ideal replacement part for your bike's engine cooling system. You can be sure of its compatibility with your bike. This Premier brand seal comes with a 1-year manufacturer warranty and is perfect for both classic and modern Triumphs.