Pressurized: No. Part: Non-Pressurized Coolant Reservoir. KarParts360 For Chevy Silverado 2500/Silverado 3500 2015 2016 2017 2018 Non-Pressurized Coolant Reservoir | Plastic | White | 3 Mounting Hole | With Cap | With Tubing | For 5165708AA, 68080551AA.
