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Upgrade Every Cap Under the Hood with Aircraft-Grade Aluminum
The Billet Technology 6400-01 6-piece engine cap cover package is a premium underhood upgrade that upgrades the factory plastic under-hood caps on the Ford Bronco with a precision CNC-machined 6-piece billet aluminum set for your 2021-2023 Ford Bronco. 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.
Key Features
- Precision CNC machined from solid 6061-T6 certified domestic aircraft-grade aluminum
- Engineered for the Ford Bronco 2.3L and 2.7L EcoBoost engines
- 6-piece set covers oil filler cap, coolant reservoir cap, brake fluid cap, washer fluid cap, power steering cap, and radiator cap
- Direct fit , each cap threads onto the OEM reservoir neck without modification
- Available in satin finish , a clean, premium aluminum appearance
- Billet Technology 6400-01 is backed by a limited lifetime warranty against defects in materials and workmanship
- Made in the USA
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2021-2023 | Ford | Bronco |
Specifications
| Detail | Value |
|---|---|
| Part Number | 6400-01 |
| Brand | Billet Technology |
| Material | Solid 6061-T6 Aircraft-Grade Aluminum |
| Finish | Satin (Raw Machined Aluminum); Color/Engraved Variants Available |
| Product Type | 6-Piece Engine Cap Cover Package |
| Country of Origin | USA |
| Warranty | Limited Lifetime Warranty Against Defects In Materials And Workmanship |
What Is Included
- 1x Billet Technology 6400-01 6-Piece Engine Cap Cover Package
- Any variant-specific hardware as shown on product page
Frequently Asked Questions
What caps are included in the Ford Bronco kit?The 6400-01 6-piece kit includes billet aluminum caps for the oil filler, coolant reservoir, brake fluid reservoir, washer fluid reservoir, power steering reservoir, and radiator cap.
Does this kit fit both the 2.3L and 2.7L EcoBoost engines?Yes. The 6400-01 is designed for both the 2.3L and 2.7L EcoBoost versions of the Ford Bronco listed in the fitment table.
Are any tools required for installation?No. All six caps thread on by hand. No tools, drilling, or adhesive are required.
What finish does this kit come in?The 6400-01 is available in satin finish. Check the product page for any additional finish variants.
Will these caps seal correctly and prevent contamination?Yes. Each billet cap is machined to match OEM thread pitch and diameter for the respective reservoir. All caps seal correctly by hand-tight installation.
Is this kit compatible with aftermarket Bronco accessories?The caps are individual reservoir covers and do not interfere with other engine bay modifications.
Is the Billet Technology Ford Bronco cap kit made in the USA?Yes. All pieces in the this product kit are CNC machined in Lake Worth, Florida from certified domestic 6061-T6 aluminum.
What is covered by the warranty?The this product is backed by a limited lifetime warranty against defects in materials and workmanship from Billet Technology.
Installation Instructions
- Park on a level surface and allow the engine to cool before beginning.
- Identify each factory plastic cap under the hood (oil filler, coolant, brake fluid, washer fluid, power steering, radiator).
- Remove each factory plastic cap counterclockwise.
- Install the corresponding Billet Technology 6400-01 billet cap by threading clockwise until snug.
- Verify all six caps are fully seated before starting the engine.
- Check fluid levels through each reservoir where applicable before closing the hood.
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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