HSP Upper Coolant Tube Kit For 2017-2019 GMC/Chevrolet 6.6L L5P Duramax camshaft and a ball peen hammer

and a ball peen hammer (for when things get really fun)

while providing a one-off look with high output when viewed from any distance

6 2006 – 2009

Safety and compliance are top priorities

HSP Upper Coolant Tube Kit For 2017-2019 GMC/Chevrolet 6.6L L5P Duramax camshaft and a ball peen hammerThe 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