A well-finished engine bay starts with the details. The Tomei Billet Oil Filler Cap (part number TE201A-NS00A) replaces the factory plastic cap with a precision-machined billet aluminum unit designed to resemble Tomei’s forged pistons. The result is a clean, high-quality appearance that complements both stock and modified RB and SR engine bays.
Manufactured from solid aluminum bar stock and finished to a smooth, polished look, the cap includes a large O-ring for a reliable oil seal. The thread size is M32 x P3.5, making it a direct fit for a wide range of Nissan engines including the RB20, RB25, RB26, and SR20 series, as well as several other compatible platforms. It is a simple upgrade that improves both aesthetics and the quality of the oil filler interface.
At Terra Firma Automotive, we supply this genuine Tomei billet oil filler cap as a popular finishing touch for Skyline, Silvia, and other Nissan performance builds. Whether you are completing an engine refresh or simply refining the under-hood appearance, this cap delivers authentic Tomei style and function. Choose Terra Firma Automotive for genuine Japanese dress-up components that enhance your engine bay.
- Genuine Tomei Billet Oil Filler Cap
- Part Number: TE201A-NS00A
- Machined from billet aluminum
- Design inspired by Tomei forged pistons
- Thread size: M32 x P3.5
- Includes O-ring seal
- Direct fit for Nissan RB20 / RB25 / RB26 engines
- Also compatible with SR20 and other listed Nissan platforms
- Polished aluminum finish
- Improves under-hood appearance
- Reliable oil sealing performance
- Simple bolt-on replacement for the factory cap
- Popular dress-up upgrade for Skyline and Silvia builds
- Authentic Japanese Tomei component
- Available from Terra Firma Automotive
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