PQY Billet Aluminium Fuel Cell Fuel Cap — 12‑Bolt Silver, Screw-Down with Gasket

PQY's billet aluminum Easy Fill fuel cell cap is a CNC-machined, screw-down replacement for 12-bolt fuel cells that simplifies refueling while improving durability and sealing.

This replacement gas cap is built from 6061 billet aluminum and finished with clear anodizing to resist corrosion and look sharp on engineered fuel cells. It is made to fit 12-bolt filler necks with 5.343" bolt spacing and ships with a rubber gasket and bolt-on flange for a secure seal. The twist-on/screw-down action is intended to be easier to use than flip-top plastic caps and is better suited to high-performance and racing environments where reliability and contamination prevention matter.

Will this cap fit my fuel cell?

The PQY cap is designed for 12-bolt filler necks that use a 5.343" bolt hole spacing, so confirm your existing cap’s pattern before ordering. Because each fuel cell manufacturer can vary slightly, you may need to enlarge the mounting holes in rare cases to achieve a perfect fit.

• Compatible with 12-bolt fuel cells with 5.343" bolt spacing
• Includes bolt-on flange and rubber gasket for installation
• May require small hole modification for some aftermarket tanks
• CNC-machined dimensions provide consistent fit for matching necks

How does the PQY cap handle sealing and contamination protection?

The cap includes a molded rubber gasket that compresses under the screw-down flange to block dirt, dust, and moisture. The snug mechanical seal reduces the chance of fuel vapor escape and keeps debris out, which is especially useful during track days or off-road use.

• Supplied rubber gasket for a tight barrier
• Screw-down design offers reliable clamp pressure
• Anodized finish resists corrosion at the sealing surface
• Prevents foreign material from entering the fuel cell

What advantages does the billet aluminum construction provide?

Machining the cap from 6061 billet aluminum yields a stronger, longer-lasting part than common plastic caps. The material resists warping and heat better, while the clear anodized surface gives corrosion resistance and a refined appearance suitable for performance builds.

• 6061 aluminum for improved strength and heat resistance
• CNC machining ensures consistent dimensions and finish
• Clear anodize protects from oxidation and adds a clean look
• Durable for motorsport and high-stress applications

How easy is it to refuel with this screw-down cap?

The design favors a twist-on refill method rather than a flip-top, making fuel transfer smoother and faster, especially with large nozzles or jerry cans. The wide opening and straightforward screw action reduce fumbling and speed pit stops or fill-ups during events.

• Screw-down action for quick, controlled refueling
• Wide fill access compared to many plastic caps
• Less prone to accidental opening under vibration
• Works well with standard fuel nozzles and pumps

Who is this for: The PQY Billet Aluminum Easy Fill Fuel Cell Gas Cap suits racers, off-road drivers, and performance vehicle owners who want a robust, long-lasting replacement for flimsy plastic filler caps. If you use a 12-bolt fuel cell with the specified bolt spacing and value corrosion resistance, easier fueling, and improved sealing, this cap is a practical upgrade. Check your existing bolt pattern and hole diameters before purchasing to ensure straightforward installation; minor hole enlargement may be required on some tanks.