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  • A set of four black anodized aluminum engine bay caps with engravings, including oil cap, wiper fluid cap, coolant overflow cap, and brake fluid cap symbols.
  • A set of four red anodized aluminum engine bay caps with engravings, including oil cap, wiper fluid cap, coolant overflow cap, and brake fluid cap symbols.
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Billetworkz Engine Bay Caps - Subaru WRX 2015-2021 & 2022+

$220.00
$220.00
Shipping calculated at checkout.
Engine Bay Cap Color: Black

Tired of a boring engine bay? Upgrade instantly with Billetworkz Engine Bay Caps.

The Problem: Crusty, faded factory caps are ruining your engine bay's look.

The Solution: Upgrade to a Billetworkz Engine Bay Cap Set!

These are direct factory replacements—CNC machined from 6061 aluminum and finished with a durable, vibrant anodized finish, or powder coated depending on the color. They offer a flawless fit and a clean, custom aesthetic that truly sets your Subaru apart.

Ready to trash the plastic and install a premium billet upgrade? Do it today!

    2015-2021 & 2022+ WRX includes:

    • Oil Cap
    • Wiper Fluid Cap
    • Coolant Overflow Cap
    • Brake Fluid Cap

    Why Choose Billetworkz?

    At Billetworkz, we pride ourselves on delivering top-tier automotive accessories that blend performance with aesthetics. Our Engine Bay Caps are a testament to our commitment to quality and design excellence.

      Materials

      • CNC-machined from high-quality 6061-T6 billet aluminum
      • Finished with a durable powder coat for long-lasting color and protection
      • Designed to withstand high engine bay temperatures and resist corrosion
      • Smooth, precision-cut details for a clean, high-performance look

      Specs

      Type: Factory replacement caps – not covers

      Fitment: Engine-specific designs for direct replacement of OEM caps

      Available Cap Types (varies by listing):

      • Oil Cap
      • Coolant Overflow Cap
      • Brake Fluid Cap
      • Washer Fluid Cap
      • Power Steering Cap

      Design:

      • Matches OEM threads and dimensions for secure fit
      • Engineered for both form and function – adds style without compromising performance
      • Pairs perfectly with other Billetworkz engine bay accessories for a cohesive look

      Installation Guide

      Installing your product is simple—and we’ve got you covered.

      Watch Install Video Here:

      Watch on YouTube →

      Need More Help?

      View All Install Guides →

      Processing Time

      Most orders ship within 1–3 business days, but processing times can vary depending on inventory, color selection, and customization options.

      Billetworkz Engine Bay Caps - Subaru WRX 2015-2021 & 2022+

      $220.00

      Engine Bay Aesthetic — Custom Colors & Finish Options

      Choose from a variety of colors and finishes to match — or accent — your build. Swap out faded plastic caps for a sleek, custom look that sets your engine bay apart.

      OEM-Fit, Direct Replacement Caps

      Replaces your stock fluid caps — oil, coolant, brake, washer, and more — with full billet aluminum caps that screw in or snap in just like factory parts. No modifications needed.

      Functional & Clean — Form Without Sacrifice

      These caps maintain OEM threads and fitment tolerances, so you get upgraded looks without compromising function or safety. A clean, cohesive engine bay that still works as intended.