Billet Technology Supercharger Coolant Cap Hellcat

Give Your Hellcat’s Supercharger Circuit a Billet Aluminum Finishing Touch

The Billet Technology 300111 supercharger coolant cap replaces the factory plastic cap on the dedicated supercharger intercooler coolant reservoir found only on Dodge Challenger SRT Hellcat and Dodge Charger SRT Hellcat models. Precision CNC machined from solid 6061-T6 certified domestic aircraft-grade aluminum in Lake Worth, Florida, this cap threads on exactly like the factory piece while giving your supercharged engine bay a premium billet finish that matches the performance under the hood.

Fitment

Specifications

What Is Included

• 1x Billet Technology 300111 Supercharger Coolant Cap
• Any variant-specific hardware as shown on product page

Frequently Asked Questions

Is the supercharger coolant system separate from the main engine cooling circuit?

Yes. On Hellcat applications the supercharger has its own dedicated intercooler coolant circuit with a separate reservoir from the main engine radiator, and the Billet Technology 300111 fits that supercharger reservoir specifically.

Does the Billet Technology 300111 maintain OEM sealing?

Yes. The 300111 is designed to match OEM thread engagement and sealing, so it maintains the same sealing characteristics as the factory plastic cap.

Can I install this cap myself?

Yes. The installs directly onto the OEM supercharger coolant reservoir neck by hand, no tools or sealant required.

Installation Instructions

1. Allow the supercharger cooling system to cool before beginning.
2. Locate the supercharger coolant reservoir under the hood.
3. Remove the factory plastic cap by turning counterclockwise.
4. Place the Billet Technology 300111 onto the reservoir neck until snug.
5. Verify the cap is fully seated and level.
6. Check supercharger coolant level through the reservoir sidewall before starting the engine.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.