CCV Vent Cover O-rings
4 Viton replacement o-rings for the Crankcase Vent cap on the top of the left valve cover.
Order of 1 is a set of 4 o-rings.
The doghouse bolt o-rings are a harder, durometer 90 Viton o-ring to keep the o-ring from tearing when tightening the doghouse down along with greater strength to resist the corrosive agents found in the crankcase gases.
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A must.
replaced these when I did the RiffRaff 6637 mod.
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CCV O-Rings! Get Them!!!
Make sure to have an extra set any time you even think about taking off the CCV dog house on your 7.3 Powerstroke!!!
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CCV Orings
The o rings fit great! They stay where they are supposed to so you don't dont loose them when you flip the dog house over. Stopped the blow by leak completely!