Sinister Diesel Coolant Reservoir (Degas) (SDDEGAS67P20) for 2017-2021 Powerstroke 6.7L

Sinister Diesel’s new Coolant Reservoir is made from 6061 aircraft grade aluminum which is TIG welded and pressure tested for maximum strength. This fabrication method makes Sinister’s tank significantly stronger than factory tanks which are molded from two plastic pieces which are sealed together causing stress, cracking and leaking. In addition, aluminum dissipates heat in the coolant system, improving performance and longevity. Sinister’s Coolant Reservoir uses a the factory cap (Which is included) and features sight glass for easy level inspection. Some cutting of the battery tray is required for proper fitment.

This Coolant Reservoir is manufactured at Sinister’s Sacramento facility for maximum quality control. Great care is put into the part’s cutting, forming, fitment, welding to ensure years of trouble free performance. The Coolant Reservoir is available in Sinister Gray or Sinister Blue for added corrosion resistance and a clean look under the hood.