Ford 7.3L Powerstroke Diesel Crankcase CCV Breather O-Ring Vent Valve Seals OEM

I replaced the glow plugs in my 1997 Ford 7.3 diesel. When I took off the PCV box on the valve cover I noticed the O rings were shot. My truck came from California and would not start last winter here in Ohio. I diagnosed it to bad glow plugs, not one good one in the bunch (you probably don't need them much in California). I replaced all 8, not really a bad job, and it started fine in 50 degree weather. As soon as it got colder it was having a hard time starting even with new glow plugs without a boost. Two new batteries solved the problem. I believe it will start at 0 degrees. The glow plugs draw about 150 amps. I needed the o rings so the CCV breather would not leak oil. So far so good. Its hard to find little parts for old trucks like mine.

This is the second time ordering these and it should have 4seals total and both times I got 1 Small seal.It is ridiculous.

Worked perfect and fitment was great. Hopefully it'll last another 24 years!

Purchased to stop oil leaks on my 7.3L. Worked great! Stopped the leak as intended. Easy to install.

OEM seals. Perfect for my 1997 and 2002 F350’s.

Works like it should

OEM Motorcraft o-rings. Great quality and perfect fit. Cured my leaking CCV box on my valve cover of my 2000 Ford F-250 with 7.3.

I replaced the glow plugs in my 99 Superduty only to find that the crankcase vent o-rings were stretched out and useless. Nobody in town had them, so these sand my bacon.