Sinister Diesel 01-16 GM Duramax 6.6L Coolant Reservoir Degas Cap - 01Find parts that fit my vehicle

This new Coolant Reservoir (Degas) Cap functions like a factory cap, but features custom Sinister Diesel looks. The cap fits OEM or Sinister Diesel Coolant Reservoir for the 2001-2016 GM Duramax. It is made from CNC machined, solid billet T6-6061 aluminum with an interior pressure relief system, so it will continue to function even in case of a gasket failure. Available in gray or Sinister Blue, this cap looks as good as it works! Features: Cap is rated for 15 PSI, Available in Anodized Sinister Blue or Gray, CNC Machined from T6-6061 Billet Aluminum, Etched Sinister Diesel Logo, Replacement for failure-prone factory cap, Fits 2001-2016 GM Duramax Coolant Reservoirs; Includes: (1) Sinister Diesel Coolant Reservoir Cap.

" says Brian

"so we knew it wasn't enough to just start another one. We wanted to create a high performance diesel parts company that actually changed the way business was done

What do you get when a group of diesel, truck and 4x4 off-road enthusiasts get together with a dream of changing the automotive aftermarket industry? You get Sinister Diesel, a company that is American Born and Bred™. Founders Brian George, Michael Mitchell and their whole team share a love of everything diesel. One afternoon, while working on Brian's truck they thought of starting a new company 'There were already online parts suppliers