Shop Blessed Performance and Keep your 2015-2016 GM 6.6L Duramax LML looking good with the HSP Upper Coolant Tube. A commonly overlooked component, HSP’s Upper Coolant Tube is the perfect addition to the underhood of your truck.
HIGHLIGHTS:
- Upper Coolant Tube
- Available In Multiple Colors
- Made in the USA
Prop 65 
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov