Sinister Diesel has released its new Degas Coolant Overflow bottle for the Ford 7.3L Power Stroke, joining the previously available 6.0L version. The bottle is made out of 6061 aircraft-grade aluminum that has been TIG welded and pressure tested for maximum strength. This process makes the Sinister bottles much more durable than the factory version, which are molded from plastic pieces that are prone to cracking and leaking. Another benefit of the aluminum construction is that it dissipates heat more efficiently than plastic, which contributes to better performance and longevity.
The degas bottle features a sight glass for simple level inspection and is a bolt-on replacement for the stock reservoir that can be installed in less than 30 minutes. The bottle is available in a raw finish of powder coated in Sinister’s well-known Sinister Blue. (888-995-0766 // www.sinisterdiesel.com)