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Boyd 225 Series Aluminum CNC Machined Cap

Boyd 225 Series Aluminum CNC Machined Cap

Availibilty : Typically In-stock, Additional QTY's available Contact us

96 in stock


Regular price $29.75
Regular price Sale price $29.75
Sale Sold out
Shipping calculated at checkout.


-Material =  CNC Machined 6061-T6 ALUM

- Threads = American Buttress Modified 5TPI

-Vented= Yes/ No  Based on your selection See Below notes about our vented cap.

-Lanyard = Yes, Stainless Steel 8” W Alum Crossbar

-Gasket = FKM Viton

This Cap Will Fit any of our 225 SERIES Necks in aluminum, Steel or Stainless.  it will also fit Kelch Brand 225 Necks.  Our cap May not fit Flambeau Plastic tanks.

*** Our Vented cap WILL LEAK. The cap is vented by machining a groove into the threads and below the gasket allowing the gasket to be bypassed. Tanks that are not stationary (Like in the back of a truck) will leak fuel as is sloshes back and forth.   We recommend using a NON Vented cap in all situations and utilize a vent port on the tank itself.

*** Bulk pricing (Minimum 100 PCS+) Available. Send us an email to with your QTY needs.

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Customer Reviews

Based on 2 reviews
Gunnar H.
Fuel cap

We went with the green, non vented cap. It looks trick and is high quality. I would recommend everything Boyd sells. We've used numerous bungs, fill necks and caps and have never been disappointed.

Sean McCann
3gallon fuel cell

Worked great. It was flat and tabs where square, made great for mounting!