the concept

Since the 1930's GROCO has manufactured heat exchangers (oil coolers) for the most demanding military, marine and industrial customers.

Cast bronze construction and universal mounting (body may be rotated to simplify plumbing) make these the finest heat exchangers available.

At engine start-up a built in bypass system allows cold oil to flow past the heat exchanger until operating temperature is reached. The full flow of oil is then directed between the cooling tubes.