This cap is an absolute beast. I’m so blown away by the quality of this cap, this thing is aviation quality, military grade, it’ll be here long after my engine and I are both gone, a premium product that’s worth the price.

My old "plastic" cap would back itself off over time even when cranked down "carefully" with a 1/2" ratchet (had the 1/2" square in center). I knew it was backing off because it would start to suck air (and leak) and the idle at a stop would pulse. This billet cap and upgraded viton gasket fixed all those issues. I cranked it down hand tight and the valley is dry! Great purchase.

This cap fits great! It screws on easily and the o-ring keeps the top rim from leaking. Anodizing is bright and seems durable with no artifacts.

Last cap you will ever buy, heavy duty, and well machined.

Quality piece. Nice seal.

This cap completely fixed my 7.3s fuel bowl seam leak. I even bought a new OEM motorcraft cap and oring that didn’t fix it

This is art work , this went on so easy the old plastic cap was not going on like it should , like it was trying to cross thread . Wish I had got it sooner and looks great !

Great build quality. No more leaking plastic cap problems.

Very solid construction, looks great, and even came with an upgraded oring.