SKU: SD-DC-FORD-94 Sinister Diesel Coolant Reservoir (Degas) Cap for 1994-2016 Powerstroke 7.3L/6.0L/6.4L/6.7L

Sinister Diesel Billet Coolant Reservoir / Degas Cap – 1994–2016 Ford 7.3L, 6.0L & 6.7L Powerstroke

Fitment
Fits compatible 1994–2016 Ford Powerstroke applications equipped with the 7.3L, 6.0L, or 6.7L Powerstroke diesel engine.
Compatible with both factory coolant reservoirs and Sinister Diesel welded aluminum coolant reservoir tanks.

Key Features

• 7.3L, 6.0L & 6.7L Powerstroke Compatibility – Designed for compatible 1994–2016 Ford Powerstroke applications
• CNC-Machined T6-6061 Billet Aluminum – Durable billet construction replaces the factory-style cap
• Factory-Matched 16 PSI Pressure Rating – Matches the factory 16 PSI specification to maintain the cooling system's intended operating pressure
• Direct Replacement – Installs in place of the compatible factory-style coolant reservoir cap
• Helps Maintain Proper Cooling System Pressure – A properly functioning cap helps maintain pressure and reduce the potential for coolant loss
• Sinister Blue Finish – Adds a clean, distinctive billet upgrade under the hood
• 1-Year Warranty – Backed by Sinister Diesel for quality and reliability

What's Included
(1) Sinister Diesel Billet Coolant Reservoir / Degas Cap

Frequently Asked Questions
Q: Which Powerstroke engines does this cap fit?
A: It is designed for compatible 1994–2016 Ford applications equipped with the 7.3L, 6.0L, and 6.7L Powerstroke diesel engines.
Q: What is the pressure rating?
A: The Sinister Diesel cap is rated at 16 PSI, matching the factory pressure rating so the cooling system can continue operating at its intended pressure.
Q: Why upgrade the factory coolant reservoir cap?
A: Coolant reservoir caps are exposed to repeated heat and pressure cycles. Replacing an aging factory-style cap with a CNC-machined billet aluminum cap provides a durable upgrade while maintaining the factory pressure specification.
Q: What is the cap made from?
A: The cap is CNC machined from T6-6061 billet aluminum and finished in signature Sinister Blue.

Why Choose Sinister Diesel
Since 2009, Sinister Diesel has focused on replacing factory weak points with durable, purpose-built components. This coolant reservoir cap combines CNC-machined billet aluminum construction, a factory-matched 16 PSI pressure rating, and signature Sinister Diesel styling in a simple, functional upgrade for your Powerstroke.