Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI
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Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI

Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI

Upgrade one of the most used and most visible components in your engine bay with the Billetworkz Oil Filler Cap in Black. This direct replacement cap swaps the tired factory plastic for a precision CNC-machined billet piece that delivers a clean, minimalist look with OEM-level fitment and function across the FA20 and EJ platforms.

Key Features

  • Precision Engineering: CNC-machined from high-quality 6061-T6 billet aluminum for durability and a perfect fit.
  • Black Finish: Clean, understated styling with a durable finish designed to resist corrosion and wear.
  • Direct OEM Replacement: Installs in place of the factory oil filler cap with no modifications required.
  • Enhanced Aesthetics: Minimalist design that instantly cleans up the engine bay and pairs well with other Billetworkz caps.

Why We Like It

The oil cap is a frequent touch point and a focal area under the hood. This Billetworkz upgrade adds a premium, purposeful look while keeping the everyday usability you need for routine maintenance.

Specifications

  • Material: 6061-T6 billet aluminum
  • Color: Black
  • Fitment Style: Direct replacement oil filler cap

Installation Notes

  • Install with the engine off and cool.
  • Remove the OEM oil filler cap.
  • Install the Billetworkz cap and ensure it is fully seated.
  • Hand-tighten only; do not over-torque.

What’s in the Box

  • (1) Billetworkz Oil Filler Cap – Black

About Billetworkz

Billetworkz has earned its reputation as a leading manufacturer of premium automotive accessories through more than a decade of innovation and quality craftsmanship. From foundational shift knobs to a complete ecosystem of billet upgrades, Billetworkz continues to deliver precision-engineered components enthusiasts can trust.

Compatibility & Disclaimers

Designed for the listed FR-S, 86, BRZ, WRX, and STI applications. Ensure the cap is fully seated before driving. Always follow OEM procedures when servicing engine oil.

Select Oil Filler Cap Color
From $21.60

Original: $72.00

-70%
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI

$72.00

$21.60

More Images

Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 2
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 3
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 4
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 5
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 6
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 7
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 8
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 9
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 10
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 11
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 12
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 13
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 14
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 15
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 16
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 17
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 18
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 19
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 20
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 21
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 22
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 23
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 24
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 25
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 26
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 27
Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI - Image 28

Billetworkz Oil Filler Cap – 2013–2021 FR-S / 86 / BRZ / 2015–2021 WRX / STI

Upgrade one of the most used and most visible components in your engine bay with the Billetworkz Oil Filler Cap in Black. This direct replacement cap swaps the tired factory plastic for a precision CNC-machined billet piece that delivers a clean, minimalist look with OEM-level fitment and function across the FA20 and EJ platforms.

Key Features

  • Precision Engineering: CNC-machined from high-quality 6061-T6 billet aluminum for durability and a perfect fit.
  • Black Finish: Clean, understated styling with a durable finish designed to resist corrosion and wear.
  • Direct OEM Replacement: Installs in place of the factory oil filler cap with no modifications required.
  • Enhanced Aesthetics: Minimalist design that instantly cleans up the engine bay and pairs well with other Billetworkz caps.

Why We Like It

The oil cap is a frequent touch point and a focal area under the hood. This Billetworkz upgrade adds a premium, purposeful look while keeping the everyday usability you need for routine maintenance.

Specifications

  • Material: 6061-T6 billet aluminum
  • Color: Black
  • Fitment Style: Direct replacement oil filler cap

Installation Notes

  • Install with the engine off and cool.
  • Remove the OEM oil filler cap.
  • Install the Billetworkz cap and ensure it is fully seated.
  • Hand-tighten only; do not over-torque.

What’s in the Box

  • (1) Billetworkz Oil Filler Cap – Black

About Billetworkz

Billetworkz has earned its reputation as a leading manufacturer of premium automotive accessories through more than a decade of innovation and quality craftsmanship. From foundational shift knobs to a complete ecosystem of billet upgrades, Billetworkz continues to deliver precision-engineered components enthusiasts can trust.

Compatibility & Disclaimers

Designed for the listed FR-S, 86, BRZ, WRX, and STI applications. Ensure the cap is fully seated before driving. Always follow OEM procedures when servicing engine oil.

Product Information

Shipping & Returns

Description

Upgrade one of the most used and most visible components in your engine bay with the Billetworkz Oil Filler Cap in Black. This direct replacement cap swaps the tired factory plastic for a precision CNC-machined billet piece that delivers a clean, minimalist look with OEM-level fitment and function across the FA20 and EJ platforms.

Key Features

  • Precision Engineering: CNC-machined from high-quality 6061-T6 billet aluminum for durability and a perfect fit.
  • Black Finish: Clean, understated styling with a durable finish designed to resist corrosion and wear.
  • Direct OEM Replacement: Installs in place of the factory oil filler cap with no modifications required.
  • Enhanced Aesthetics: Minimalist design that instantly cleans up the engine bay and pairs well with other Billetworkz caps.

Why We Like It

The oil cap is a frequent touch point and a focal area under the hood. This Billetworkz upgrade adds a premium, purposeful look while keeping the everyday usability you need for routine maintenance.

Specifications

  • Material: 6061-T6 billet aluminum
  • Color: Black
  • Fitment Style: Direct replacement oil filler cap

Installation Notes

  • Install with the engine off and cool.
  • Remove the OEM oil filler cap.
  • Install the Billetworkz cap and ensure it is fully seated.
  • Hand-tighten only; do not over-torque.

What’s in the Box

  • (1) Billetworkz Oil Filler Cap – Black

About Billetworkz

Billetworkz has earned its reputation as a leading manufacturer of premium automotive accessories through more than a decade of innovation and quality craftsmanship. From foundational shift knobs to a complete ecosystem of billet upgrades, Billetworkz continues to deliver precision-engineered components enthusiasts can trust.

Compatibility & Disclaimers

Designed for the listed FR-S, 86, BRZ, WRX, and STI applications. Ensure the cap is fully seated before driving. Always follow OEM procedures when servicing engine oil.