Holiday closures will affect orders, including Air shipments. See Company Status for details

We have resolved our technical issue, however orders will be delayed. We apologize for the delay, and please know that getting your order to you is our top priority!

Canadian Shipments May Be Delayed – UPS is suggested for all Canadian Orders. Visit Company Status for details

Note: Your order may take longer than usual to arrive

Toggle Nav
Menu
Account
main product photo

Black Billet Aluminum Oil Cap by R Theory Motorsports

$45.22
Be the first to review this product
Part #
998-572
Application
2006-2025
In Stock In Stock
Save To Wishlist

Ditch the dull plastic. Upgrade your engine bay with a precision-crafted billet aluminum oil cap from R Theory Motorsports.

Machined from a solid block of 6061-T6 aluminum with a Black Anodized finish, this cap brings clean, motorsport-inspired aesthetics and uncompromising reliability to the top of your engine. Their one-piece construction eliminates the risk of misalignment or separation and the cap's raised center rib makes for easy removal, even with gloves or when hot.

Whether you're chasing lap times or just enjoying the drive, the R Theory Motorsports Billet Oil Cap adds that perfect touch of form and function under the hood.

Fitment:

  • All NC & ND Miata's (2006-2024, including NC2, NC3, ND2, and ND3)
  • All Mazda Skyactiv engines (CX-3, CX-30, CX-5, CX-50, CX-7, CX-9, and more)
  • Most Skyactiv engines come with a plastic valve cover, this cap does not fit the aluminum valve cover.
Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account

Moss Has You Covered

  • All products we sell are warrantied against defects in material and workmanship by the original equipment manufacturer or Moss Motors, Ltd., for 12 months from the date of shipment.
  • We will replace the product or refund your purchase price at our discretion.
  • The warranty does not cover labor, failure of a related component, failure resulting from faulty installation, nor would the liability of Moss Motors exceed the cost of the original component.
  • Warranty requests should be submitted to our sales department and must be supported by the original Moss Motors purchase invoice and documentation of the failure.
  • Many of the brands we carry have their own warranty terms that have you covered outside of our 12 month protection.
Product Name: Black Billet Aluminum Oil Cap by R Theory Motorsports Brand: R THEORY MOTORSPORTS Color: Black Make: Mazda Model: MX-5 Miata Series: NC, ND Year: 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025