Unavailable for almost 40 years we have sourced a Single pulley 1/2 inch belt water pump for the Triumph TR6 1970 to 1976. If your TR6 does not use the air pump you can clean up the look of your car and have a single pulley 1/2 belt. No more will people say, hey your missing a belt when they look at your Triumph TR6.. This water pump comes with a new gasket which is not shown in the picture. You should always use new clean radiator fluid in your Triumph when you change the water pump. Because the biggest killer of water pumps is coolant degradation which will built up debris in the cooling system and wreck seals and bearings. How can degradation cause this? Corrosion in the system from the break down of coolant causes the engine for rust from the inside out. Another things that causes you water pump to fail is out of balance cooling fan blades. This can happen a couple of ways, one is just a simple bent blade.