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Upgrade Every Cap Under the Hood with Aircraft-Grade Aluminum
The Billet Technology 300159 supercharger coolant reservoir cover is a premium underhood upgrade that replaces the factory plastic supercharger coolant reservoir housing with a fully machined billet aluminum enclosure for your 2011-2022 Chrysler 300, Dodge Charger. Every piece is CNC machined in Lake Worth, Florida from solid 6061-T6 certified domestic aircraft-grade aluminum, delivering a factory-plus appearance with the durability that Mopar performance drivers demand. No modifications, no adapters. Installs in minutes with zero tools required.
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2011-2022 | Chrysler | 300 | |
| 2011-2022 | Dodge | Charger |
Specifications
| Detail | Value |
|---|---|
| Part Number | 300159 |
| Brand | Billet Technology |
| Material | Solid 6061-T6 Aircraft-Grade Aluminum |
| Finish | Satin (Raw Machined Aluminum); Color/Engraved Variants Available |
| Product Type | Supercharger Coolant Reservoir Cover |
| Country of Origin | USA |
| Warranty | Limited Lifetime Warranty Against Defects In Materials And Workmanship |
What Is Included
- 1x Billet Technology 300159 Supercharger Coolant Reservoir Cover
- Any variant-specific hardware as shown on product page
Frequently Asked Questions
Does the Billet Technology coolant reservoir cover maintain OEM coolant volume?Yes. The 300159 is designed to match or exceed the OEM reservoir volume for the supercharger cooling circuit.
What coolant type should be used with this reservoir?Use the coolant type specified by the vehicle manufacturer for the supercharger cooling circuit. Refer to the factory service manual for the correct specification.
Is this a direct bolt-in replacement?Yes. The billet reservoir uses OEM mounting locations and hose connection points for direct replacement.
Will this work with an aftermarket supercharger inlet or pulley kit?Yes. The reservoir is part of the cooling circuit and is not affected by supercharger inlet or pulley modifications.
What finish options are available?The 300159 is available in satin and color anodized variants. Select from the product page.
How do I bleed the supercharger cooling circuit after installation?Follow the OEM supercharger cooling circuit bleed procedure in the factory service manual. The process typically involves filling the reservoir, running the engine, and topping off after the thermostat opens.
Is the Billet Technology coolant reservoir cover made in the USA?Yes. The 300159 is CNC machined in Lake Worth, Florida.
What is included with the kit?The kit includes the billet reservoir and all necessary hardware for direct installation. Refer to the What Is Included section above.
Installation Instructions
- Ensure the supercharger cooling system is cool and depressurized before beginning.
- Place a drain pan under the vehicle.
- Disconnect the supercharger coolant hoses from the factory reservoir.
- Remove the OEM reservoir mounting fasteners and remove the factory reservoir.
- Transfer hoses to the Billet Technology 300159 billet reservoir.
- Mount the billet reservoir using OEM fastener locations.
- Reconnect coolant hoses and clamp securely.
- Refill the supercharger cooling circuit with the correct coolant type.
- Bleed any air from the system per the manufacturer procedure and verify coolant level.
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.
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