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Boyd 2" NPSM Loose CNC Machined Aluminum Cap

Boyd 2" NPSM Loose CNC Machined Aluminum Cap

Availibilty : Typically In-stock


Regular price $28.35
Regular price Sale price $28.35
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Vent Option

-Material =  CNC Machined 6061 ALUM
- Threads = 2” NPSM  Loose 11.5” TPI
-Vented= Yes/ No  Based on your selection
-Lanyard = Yes, Stainless Steel 8” W Alum Crossbar
-Gasket = FKM VITON
This Cap Will Fit any of our 2" NPSM Necks in aluminum, Steel or Stainless


*** 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.

What does NPSM Loose Mean?  NPSM stands for National Pipe Straight Mechanical.  Loose means that we machine these on the higher end of the tolerance to account for Weld distortion to the neck and expansion and contraction throughout the seasons.
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Customer Reviews

Based on 3 reviews
Brent Lewis

Boyd's products are top notch!

Mark Gabrielson
perfect parts

The product is well made. Excellent tig work. Well done

Ed Fulton
Replacement Gas Tank Cap

The Boyd replacement gas cap is fine piece of workmanship.