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Stop Staring at a Cracked, Chalky Plastic Cap Under Your Hood
The Billet Technology 3033 coolant reservoir cap cover swaps out your fading, brittle factory plastic cap for a precision billet aluminum piece built to match the rest of your engine bay. Every cap is CNC machined in Lake Worth, Florida from solid 6061-T6 certified domestic aircraft-grade aluminum, so it holds up to underhood heat and coolant vapor without fading, cracking, or discoloring like the OEM plastic. No cutting, no adapters, no guesswork. It threads on in minutes and instantly cleans up one of the most visible pieces of plastic in your engine bay.
Key Features
- Precision CNC machined from solid 6061-T6 certified domestic aircraft-grade aluminum
- Direct fit replacement for the OEM coolant reservoir cap, threads onto the factory neck with no modification
- Available in satin, color anodized, and engraved finish variants
- Rated for sustained underhood temperatures and coolant vapor exposure
- Eliminates OEM plastic cap fading, discoloration, and brittleness over time
- Billet Technology 3033 is backed by a limited lifetime warranty against defects in materials and workmanship
- Made in the USA
Fitment
| Year Range | Make | Model | Trim / Engine |
|---|---|---|---|
| 2006-2010 | Jeep | Grand Cherokee | SRT8 |
| 2011-2021 | Jeep | Grand Cherokee | 3.6L V6 |
| 2011-2014 | Jeep | Grand Cherokee | 5.7L HEMI |
| 2011-2019 | Jeep | Grand Cherokee | SRT 392 6.4L |
| 2018-2021 | Jeep | Grand Cherokee | Trackhawk |
| 2008-2009 | Dodge | Caliber | SRT4 |
| All Years | Dodge | Ram 1500 | All Engines |
| 2018-2024 | Dodge | Durango | SRT 392 |
| 2021, 2023-2026 | Dodge | Durango | SRT Hellcat |
Specifications
| Detail | Value |
|---|---|
| Part Number | 3033 |
| Brand | Billet Technology |
| Material | Solid 6061-T6 Aircraft-Grade Aluminum |
| Finish | Satin (Raw Machined Aluminum); Color/Engraved Variants Available |
| Product Type | Coolant Reservoir Cap Cover |
| Country of Origin | USA |
| Warranty | Limited Lifetime Warranty Against Defects In Materials And Workmanship |
What Is Included
- 1x Billet Technology 3033 Coolant Reservoir Cap Cover
Frequently Asked Questions
Does the Billet Technology 3033 fit my Jeep Grand Cherokee or Dodge Durango?
Yes, provided your vehicle falls within the year, make, model, and trim combinations listed in the fitment table above. Confirm your exact configuration before ordering.
Will this cap work with OEM and aftermarket coolants?
6061-T6 aluminum does not react with standard ethylene glycol based or OAT based coolants. This cap is compatible with all common coolant formulas.
What finish options are available?
The 3033 is available in multiple finish options. Select your preferred finish from the variants on the product page.
Can I install this cap in my driveway?
Yes. No tools, drilling, or modifications are required. The cap threads on by hand in under 2 minutes.
Is this product made in the United States?
Yes. The Billet Technology 3033 is CNC machined in Lake Worth, Florida from certified domestic aluminum stock.
Installation Instructions
- Allow the engine to cool to ambient temperature before opening the coolant system.
- Locate the coolant reservoir under the hood.
- Twist the factory plastic coolant cap counterclockwise and lift to remove.
- Place the Billet Technology 3033 onto the reservoir neck and thread clockwise until snug.
- Verify the cap seals flush against the reservoir.
- Check coolant level visually 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.
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