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 2016-2023 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 20 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 2016-2023 GM Duramax Coolant Reservoirs
- 1 Year Warranty
Includes:
- (1) Sinister Diesel Coolant Reservoir Cap
