radiator hose inside diameter

[Tre3zy]

just wondering wats the inside diameter or our radiator hoses.... planning on getting a water temp gauge in the future so and planning on buying the sender attachment is it 1 1/2" ?

 

[Muskrat]

The waterneck is 1 3/8. You could probably get the hose on a 1 1/2 adapter, if they don't have that. It'll also squeeze down on a 1 1/4 fitting as well.