Retaining Spring, Coolant Flange Sealing Plug Available here. Buy Retaining Spring Coolant Flange Sealing Plug online. Free Delivery over €50 & 30 Day Returns. Explore our huge range of Retaining Spring Coolant Flange Sealing Plug at MicksGarage.com. Unbeatable prices and the largest range online. Shop Retaining Spring Coolant Flange Sealing Plug Ireland