HSP Diesel L5P 2017-2019 Upper Coolant Tube – Illusion Cherry Special Offer

The 637-1-HSP is best known as the HSP Upper Coolant Tube for the 2017-2019 L5P Duramax-equipped Chevrolet and GMC trucks. This is an often-overlooked piece that can set off an engine bay. Why would you need the HSP Upper Coolant Tube for the 2017-2019 L5P Trucks? The factory upper coolant tube is a piece that just looks out of place. While the factory part works alright, it can fail due to the construction and the overall look just does not do the L5P engine the justice that it deserves. What does the HSP