Upgrade your Mazda FD3S RX-7 with the Vinny Fab Billet Oil Cap featuring an Alloy Weld Boss, engineered for builders who demand precision, reliability, and performance.

This CNC-machined billet oil cap is a direct replacement for the factory unit, designed to integrate seamlessly into custom oil system setups or fabrication projects. The anodized black finish adds a sleek, corrosion-resistant layer that enhances both durability and engine bay style.

Key Features & Benefits:

• 🔩 Direct Replacement Fit: Installs easily with no modifications required — replaces the stock oil cap perfectly.

• ⚙️ Alloy Weld Boss: Durable alloy boss allows easy welding and integration into custom oil systems.

• 🧰 CNC Machined Precision: Manufactured to exact tolerances for a secure seal and long-term performance.

• 🎨 Anodized Black Finish: Provides a premium appearance while resisting corrosion and heat.

• 🪶 Vinny Fab Engraving: Subtle, professional branding for a clean, custom look.

Whether you’re fabricating a custom oil return, refining your cooling setup, or just dressing up your rotary engine bay, this billet oil cap delivers the strength, precision, and finish you expect from Vinny Fab.

👉 Order yours today — engineered in New Zealand for performance-driven RX-7 enthusiasts.